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RMMA71TX–. Effects of pollutants on marine organisms : deliberations and recommendations of the NSF/IDOE Effects of Pollutants on Marine Organisms Workshop, held in Sidney, British Columbia, August 11-14, 1974 . 20 30 Concentration of Oil 40 50 Figure 6. Mean survival times of an oceanic pteropod mollusc Creseis acicula in various concentrations of water soluble and reaction of No. 2 flel oil (Exxon Bay- town). exposure. It is demonstrable that many of the aromatic compounds occurring in petroleum oils are harmful to marine animals, and rela- tive toxicities of some of them have been determined. Here,
RMPFAGNT–. Deutsche excursions-mollusken-fauna. Mollusks. ^39 4. Vitreila aclcula^ Held. Palttdina acicula, Held, Isis. 1837. p. 901. Faludma vitrea, Held, Wasser moll. Bayerns, Programm Gewerbschule Müuchen 1836 p. Puludiua acicula, Küster, Mouogr. iu Chemuitz. Couch, tab. ed. 2. p. 57 f. 11. fig. 5. 6. Tliier: nicht beobachtet. Gehäuse: klein, cylindrisch-spindelförmig, mit feiner Nabelritze, durchsichtig, glashell glänzend, Streiten sehr fein, aus zu- Fiir. 187.. kaum mit scharfer Loupe sichtbar; Gewinde zugespitzt, 6 ziemlich gewölbten, sehr langsam und gleichmässij nehmenden Umgängen bestehend, di
RM2AWMH3B–Papers . very prominent setal portion, with adense tuft of compound setse ventrally and a smaller tuft of simple setse dorsally.There is a needle acicula in the dorsal cirrus. The dorsal cirrus is slender, butthe ventral one is short and thick and merges gi-adually into the ventral pad-likeswelling characteristic of the anterior parapodia in this genus, but especially prom-inent here. A later parapodium from behind the middle of the body (plate 2,fig. 4) has a conical setal portion with a prominent ventral swelling, carrying the short,thick ventral cirrus on its outer end. The dorsal cirrus is
RMMA71WG–. Effects of pollutants on marine organisms : deliberations and recommendations of the NSF/IDOE Effects of Pollutants on Marine Organisms Workshop, held in Sidney, British Columbia, August 11-14, 1974 . 0.1 0.4 0.5 0.2 0.3 Exposure time, hours Figure 7. Mean survival of Creseis acicula vs concentrations of water soluble fractions of No. 2 fuel oil for various exposure times. Compare Figure 6. data are limited, restricted as they are to one species, whereas it is to be expected that species differences will exist in this regard. Trace Metals The biological effect of heavy metals was studied by
RMPFAXGM–. Deutsche excursions-mollusken-fauna. Mollusks. 497 Fig. 344. wnrfe sich findenden Vitr. acicula nahe; sie ist aber bei breiterer Basis mehr kegelförmig, hat mehr gewölbte Um- gänge und eine tiefer eingeschnürte Naht. — Rougemont behauptet, dass die Geschlechter getrennt sind, und dass mähnliche und weibliche Individuen schon an der Schale sich unterscheiden lassen, indem die letzteren eine stumpfere Schale besitzen. — Unter den Exemplaren meiner Samm- lung befindet sich ein links gewundenes. 9. Vitr eil a helvetica^ Clessin. Vitrella helvetica, Clessin, Monogr. Vitr. in Mal. Bl. V. p. 121 t.
RM2AN404J–Theodori Kerckringii, Doctoris medici Opera omnia anatomica : continentia Specilegium anatomicum, Osteogeniam foetuum, nec non Anthropogeniae ichnographiam : accuratissimis figuris aeri incisis illustrata . dum par: principia eorum proceffuum <$ qui deinde maxillam fuperiorem tangunt.C.C. Tertiumpar: principiaofjls^ qtuefellamequi fiam pofiea conflituent, nunc ojficula diflinda^ 268 TH. KERCKRINGII caputmajoris acicula aqumtia. Quae celerri** rrie in formam figura appojita K. coalefcunt.D.D. Quartum par: principia offis , qua nervl viforii transmittentur , nunc offificatds bin<% lineold
RMMA7D5N–. Einführung in die europäische Meeresmolluskenfauna an der Hand ihrer Hauptrepräsentanten . Text-Fig. 102. Creseis acicula von der Rückenseite vergrößert (nach Qegenbaur). Der hintere Teil weggelassen. Fl Flossen, OMund, Oes Oesophagus, P Mittellappen des Fusses, FFühler, Ug Gehirnganglion, Mn Mantelnerv, Ws Wimperschild, M Magen, Bl Blindsack des Magens, A After, N Niere, Oe Mündung derselben in die Mantelhöhle, At Atrium, Ve Ventrikel, Q Geschlechtsdrüse, R Retractor. Text-Fig. 103. Atlanta Peronii, stark vergrößert (nach Brehm). Von den Vorderkiemern und unter diesen besonders aus der Abte
RMPFAXGR–. Deutsche excursions-mollusken-fauna. Mollusks. zusammenhängend, kaum erweitert; Spindelrand zurückge- schlagen, Umschlag, die Spindelritze fast verdeckend. — Deckel? Länge 2,1 mm, Durchm. 0,9 mm; Länge der Mündung 0,7 mm, Verbreitung. Im Geniste der Jagst bei Schönthal in Würtemberg. Bemerkung. Die Art steht der Vitr. acicula Held am nächsten, hat aber bei nur 5 Windungen eine mehr cylindrische Gestalt und eine stumpfere Spitze. 8. Vitr eil a Rouge monti, Clessln. VUrella Rougemonti, Clessin, Mal. Blätter V. p. 120 t. 2 fig. 14. Hydrohia, sp. Rougement. etude faune des eaux privees de lumier
RM2AKG4R8–Natural history of animals; . P Fig. 416. — Heli- W&M Fig. 418. - ^TW/j Fig. 420. — Bui- cina. U. States. 9 Acicula. wy ia# tj States. Fig. 417.— Great Fig. 419 — Clyclostoma. Britain. Tornatella. United States. Great Britain. Sea Slugs. These have no shells, and many of them only slightlyresemble the Gastropods before described. See Fig-ures 421-425. Fig 422. — Doris. Great Biitain. Fig. 423. — Elysia. Fig. 424. — At-Great Britain. lanta. South Atlantic. Fig. 421. — Eolis. Fig. 425. — Tritonia. Great Britain. Great Britain.
RMMABCKR–. Dr. H. G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Nervensystem von Littorina littorea. Buchstaben wie vorher. Dazu c.sb Sub-, c.sp Supraintestinalcommissur. P Pedal- ganglien. Nach B ou vi er. erlaubt sein.) Visceralnerven ge- Hydrobiiden. Planaxiden. Eine Anzahl von Formen scheinen hier zusammenzugehören, die Hydröbien, Bissoiden, Bythinia und Bythinella, Truncatella, Geomelania, Acme s. Acicula (1363). Flanaxis scheint nicht fern zu stehen. Ha 11 er meint, dass Bythinia unter die Paludiniden gehöre, was leicht zurückzuweisen ist. Ueb
RMPFFXXT–. Dbutsugaku zasshi. Zoology; Zoology. å¾é¨ã«ããç£è¶³ã®ãã®ããã廣大ã«ãã¦å ¶ç«¯å*ãèï¼ã㦠æ-¤ç-ä¸ä¸é¨è¶³èã®éã«ç-å°ãªã足æããæ-¤è ã¯ä»ã®ç£è¶³ ã«æ¼ããä¸æã代表ãããã®ã«â¢ãã¦ä¹ã«ä¸æ¬ã®é»è²ãªã 足å(Acicula)ããåè觸é¬VJè ¹è§¸é¬yjã¯å¤ªããã¦ç¥ã¼ åé·ãªãèãã¦ä¹ãå¾é¨ã®ç£è¶³å令ã°ç¬¬ååçªç®ã®ç£è¶³ (第ååä¸ç°ç¯ã«é屬ãããã®ç¬¬äºé¬ªä¹)ã®è ¹è§¸é¬ã«æ¯ã. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Dbutsu Gakkai; Tky Dbutsu Gakkai. Tky : Tky
![The land and freshwater shells of the British Isles : with illustrations of all the species . # lelix lai.i> i.|, II Ilipa sccale Xcrliij;!) i)usilla Iupa uinbilicala crtioo c(k-nlula Iupa iiiai^innhi Wrliyo mimilissinia PLATE IX. Vertis^o aiitiverligo Vertigo Moalinsiana « Jertig() pygmaa I erligo aljieslris 3 8 ertii:() sul).striata Ualia perversa I I alia ]ier J (lausilia biplieata. Clausilia laininata I ^ Cochlieoiia tridens (Jlausilia ruijo.sa M Cochlicojia lubrica Achatina acicula (.lausilia Rolphii <• arycnium mininuin-!. *aliulina contecta. Paluiiina vivinara Vertigo. PLATE Stock Photo](https://c8.alamy.com/comp/2AX0H05/the-land-and-freshwater-shells-of-the-british-isles-with-illustrations-of-all-the-species-lelix-laiigt-i-ii-ilipa-sccale-xcrliij!-iusilla-iupa-uinbilicala-crtioo-ck-nlula-iupa-iiiaiinnhi-wrliyo-mimilissinia-plate-ix-vertiso-aiitiverligo-vertigo-moalinsiana-jertig-pygmaa-i-erligo-aljieslris-3-8-ertii-sulstriata-ualia-perversa-i-i-alia-ier-j-lausilia-biplieata-clausilia-laininata-i-cochlieoiia-tridens-jlausilia-ruijosa-m-cochlicojia-lubrica-achatina-acicula-lausilia-rolphii-lt-arycnium-mininuin-!-aliulina-contecta-paluiiina-vivinara-vertigo-plate-2AX0H05.jpg "The land and freshwater shells of the British Isles : with illustrations of all the species . # lelix lai.i> i.|, II Ilipa sccale Xcrliij;!) i)usilla Iupa uinbilicala crtioo c(k-nlula Iupa iiiai^innhi Wrliyo mimilissinia PLATE IX. Vertis^o aiitiverligo Vertigo Moalinsiana « Jertig() pygmaa I erligo aljieslris 3 8 ertii:() sul).striata Ualia perversa I I alia ]ier J (lausilia biplieata. Clausilia laininata I ^ Cochlieoiia tridens (Jlausilia ruijo.sa M Cochlicojia lubrica Achatina acicula (.lausilia Rolphii <• arycnium mininuin-!. *aliulina contecta. Paluiiina vivinara Vertigo. PLATE Stock Photo")
RM2AX0H05–The land and freshwater shells of the British Isles : with illustrations of all the species . # lelix lai.i> i.|, II Ilipa sccale Xcrliij;!) i)usilla Iupa uinbilicala crtioo c(k-nlula Iupa iiiai^innhi Wrliyo mimilissinia PLATE IX. Vertis^o aiitiverligo Vertigo Moalinsiana « Jertig() pygmaa I erligo aljieslris 3 8 ertii:() sul).striata Ualia perversa I I alia ]ier J (lausilia biplieata. Clausilia laininata I ^ Cochlieoiia tridens (Jlausilia ruijo.sa M Cochlicojia lubrica Achatina acicula (.lausilia Rolphii <• arycnium mininuin-!. *aliulina contecta. Paluiiina vivinara Vertigo. PLATE
RMMAA0EJ–. Echinodermen (Stachelhäuter) . Fig. 11. Schema über die Anordnung der grossen (und mittelgrossen) und kleinen Fühler hei Pseiidnaicumis nfrirana (Semp.). Fig. 12. Desgleichen von Pfseudocucumis acicula (Semp.). Der mittlere schraflirfe Kreis bedeutet die Lage der Mundöffnung, Z)Fdie Lage der dorso-ventralen Medianebene, die nicht schrafiirten Kreise die Lage und relative Grösse der Fühler, die Pfeile die Richtung der Badien. und vielen anderen Arten dieser Gattung wechseln fünf Paar grosse mit iunf Paar kleinen. — Bei Pseudocucumis africana (Semp.) und acicula (Semp.) sind grosse (mittelgros
RM2AJEB58–Introduction à l'étude des mollusques . e. Dans tous les autres Gastro-podes, il ny a quune seule oreillette, topographiquement gauche(fig. 53), généralement plus grande- que le ventricule, à paroisminces, transparentes, à fibres musculaires assez peu nombreuses.Le ventricule est traversé par le rectum dans les Rhipidoglosses (saufles Helicinidœ,, et il se trouve placé entre les deux oreillettes chezles plus archaïques dentre eux; dans la plupart des Slreptoneures,des Pulmonés et chez Actœon, Limacina, Clio virgula et acicula(Bulléens), il est en arrière de loreillette unique; parfois sur lamê
RMMEFMY7–. Die Fauna Südwest-Australiens; Ergebnisse, hrsg. von W. Michaelsen und R. Hartmeyer . Polychaeta I, Errantia. 257 fadenförmig, und erreichen kaum das Ruderende. — Die Ruder haben eine kurze terminale oder hintere (?) Endlippe, an deren Basis die Acicula endet. Die Borsten sind in jedem Ruder etwa 6 komplexe Borsten und eine einfache dünne obere Nadelborste. Die komplexen Borsten haben kurze, schmale, einseitig gewimperte und am Ende einspitzige Endsicheln; der Borstenschaft ist ausge- zeichnet gegenüber anderen Arten der Gattung Gruhea durch die starke Entwicklung der kürzereu terminalen Gab
![A manual of the Mollusca, or, A rudimentary treatise of recent and fossil shells . ^cliiuin minimimi, Drap. sp. y. Britain. Cyclostomidce. 40. Cyclostoma elegans, ]IiiU. sp. Britain. 41. Cyclopborus involvulus, INIiill. sp. f. India. 42. Pupina bi-caualiculata, Sby. N. Australia. 43. Hclicma Bro^Miii, Sby. Philippines. 44. Acicula fusca. Walker, sp. . Britain, SMITHSONIAN INSTITUTION LIBRARIES 3 9088 00562 2659. cu TJie -mcmtle n ^yJIood Ij Its fhrrsal fold o 0 0 li.rteiiiv dioftation. e ITidcaiictital iTiarKl v Tentades a Shell iiiiuu-Jc s^^ Hye i I i^SipTion a-i27 Sej!du 7x TT.ain^ 2- last Stock Photo](https://c8.alamy.com/comp/2AXG7PY/a-manual-of-the-mollusca-or-a-rudimentary-treatise-of-recent-and-fossil-shells-cliiuin-minimimi-drap-sp-y-britain-cyclostomidce-40-cyclostoma-elegans-iiiu-sp-britain-41-cyclopborus-involvulus-iniiill-sp-f-india-42-pupina-bi-caualiculata-sby-n-australia-43-hclicma-bromiii-sby-philippines-44-acicula-fusca-walker-sp-britain-smithsonian-institution-libraries-3-9088-00562-2659-cu-tjie-mcmtle-n-yjiood-ij-its-fhrrsal-fold-o-0-0-lirteiiiv-dioftation-e-itidcaiictital-itiarkl-v-tentades-a-shell-iiiiuu-jc-s-hye-i-i-isiption-a-i27-sej!du-7x-ttain-2-last-2AXG7PY.jpg "A manual of the Mollusca, or, A rudimentary treatise of recent and fossil shells . ^cliiuin minimimi, Drap. sp. y. Britain. Cyclostomidce. 40. Cyclostoma elegans, ]IiiU. sp. Britain. 41. Cyclopborus involvulus, INIiill. sp. f. India. 42. Pupina bi-caualiculata, Sby. N. Australia. 43. Hclicma Bro^Miii, Sby. Philippines. 44. Acicula fusca. Walker, sp. . Britain, SMITHSONIAN INSTITUTION LIBRARIES 3 9088 00562 2659. cu TJie -mcmtle n ^yJIood Ij Its fhrrsal fold o 0 0 li.rteiiiv dioftation. e ITidcaiictital iTiarKl v Tentades a Shell iiiiuu-Jc s^^ Hye i I i^SipTion a-i27 Sej!du 7x TT.ain^ 2- last Stock Photo")
RM2AXG7PY–A manual of the Mollusca, or, A rudimentary treatise of recent and fossil shells . ^cliiuin minimimi, Drap. sp. y. Britain. Cyclostomidce. 40. Cyclostoma elegans, ]IiiU. sp. Britain. 41. Cyclopborus involvulus, INIiill. sp. f. India. 42. Pupina bi-caualiculata, Sby. N. Australia. 43. Hclicma Bro^Miii, Sby. Philippines. 44. Acicula fusca. Walker, sp. . Britain, SMITHSONIAN INSTITUTION LIBRARIES 3 9088 00562 2659. cu TJie -mcmtle n ^yJIood Ij Its fhrrsal fold o 0 0 li.rteiiiv dioftation. e ITidcaiictital iTiarKl v Tentades a Shell iiiiuu-Jc s^^ Hye i I i^SipTion a-i27 Sej!du 7x TT.ain^ 2- last
![. Die Fauna südwest-Australiens. Ergebnisse der Hamburger südwest-australischen Forschungsreise 1905 . Fig. 18. Nereis aequisetis n. sp. a Ruder von der vorderen Körperhälfte; ^Vr b ventrale Gräten- borste; "7i- ^ ventrale Sichelborste von der hinteren Körperhälfte; *^7i- mittleren kaum halb so lang wie die obere dorsale Lin- gula. Der Ventralcirrus ist ebenfalls kurz und etwa halb so lang wie die ven- trale Lingula. Die Basis des Dorsalcirrus ist an ihrer medialen Seite von gewöhn- licher Gestaltung, glatt. Jeder Ruderast enthält eine schwarze Acicula. Die Borsten sind überwiegend nur Gr Stock Photo](https://c8.alamy.com/comp/MEFM8D/die-fauna-sdwest-australiens-ergebnisse-der-hamburger-sdwest-australischen-forschungsreise-1905-fig-18-nereis-aequisetis-n-sp-a-ruder-von-der-vorderen-krperhlfte-vr-b-ventrale-grten-borste-quot7i-ventrale-sichelborste-von-der-hinteren-krperhlfte-7i-mittleren-kaum-halb-so-lang-wie-die-obere-dorsale-lin-gula-der-ventralcirrus-ist-ebenfalls-kurz-und-etwa-halb-so-lang-wie-die-ven-trale-lingula-die-basis-des-dorsalcirrus-ist-an-ihrer-medialen-seite-von-gewhn-licher-gestaltung-glatt-jeder-ruderast-enthlt-eine-schwarze-acicula-die-borsten-sind-berwiegend-nur-gr-MEFM8D.jpg ". Die Fauna südwest-Australiens. Ergebnisse der Hamburger südwest-australischen Forschungsreise 1905 . Fig. 18. Nereis aequisetis n. sp. a Ruder von der vorderen Körperhälfte; ^Vr b ventrale Gräten- borste; "7i- ^ ventrale Sichelborste von der hinteren Körperhälfte; *^7i- mittleren kaum halb so lang wie die obere dorsale Lin- gula. Der Ventralcirrus ist ebenfalls kurz und etwa halb so lang wie die ven- trale Lingula. Die Basis des Dorsalcirrus ist an ihrer medialen Seite von gewöhn- licher Gestaltung, glatt. Jeder Ruderast enthält eine schwarze Acicula. Die Borsten sind überwiegend nur Gr Stock Photo")
RMMEFM8D–. Die Fauna südwest-Australiens. Ergebnisse der Hamburger südwest-australischen Forschungsreise 1905 . Fig. 18. Nereis aequisetis n. sp. a Ruder von der vorderen Körperhälfte; ^Vr b ventrale Gräten- borste; "7i- ^ ventrale Sichelborste von der hinteren Körperhälfte; *^7i- mittleren kaum halb so lang wie die obere dorsale Lin- gula. Der Ventralcirrus ist ebenfalls kurz und etwa halb so lang wie die ven- trale Lingula. Die Basis des Dorsalcirrus ist an ihrer medialen Seite von gewöhn- licher Gestaltung, glatt. Jeder Ruderast enthält eine schwarze Acicula. Die Borsten sind überwiegend nur Gr
RM2AWM6HT–Papers . Figures 20 to 37. 20 and 21. Lumbrinereia cervicalis new species (continued). Fig. 20, maxilla, X 28; fig. 21,mandible, X 28. 22 to 34. Onuphis stigmatis new BX>QCes. Fig. 22, anterior dorsal view, X 15; fig. 23, posteriorventral view, X 15; fig. 24, first parapodium, X 68; fig. 25, tenth parapodium,X 68; fig. 26, parapodium from middle of body, X 45; fig. 27, acicula, X 250; fig. 28,acicula, X 250; fig. 29, semi-compound seta, X 250; fig. 30, seta from tenth para-podium, X 250; fig. 31, compound seta from tenth parapodium, X 250; fig. 32,pectinate seta, X 500; fig. 33, maxilla, X
RMMABC7A–. Dr. Johannes Leunis Synopsis der thierkunde. Ein handbuch für höhere lehranstalten und für alle, welche sich wissenschaftlich mit der naturgeschichte der thiere beschäftigen wollen . 5ig. '07. Ueber id)t über ben S8ou öon CresSls acicüla; BevgröSert, mit aSßeglaffung ber Hinteren ©pi^e; 3lnftc^t öcn ber aJüdtenfeitc. 1 Steffen; 2 aRittetlappcn bc« gußeS; 3 TOunb; 4 ©peiferö^re; 5 fyüfitcr; 6 ®ef)irngangticn; / 9}iagen; 8 ©arm; i) Slinbbarm; 10 Hfter; 11 ®e((^Ict^t«ibrnfc; 12 spcrhof be« ^crjenS; 13 Äamniev teö ^erjenö; 14 S'tierc. äußere ©c^ale ift bei ben jungen Sinteren anfängtid^ ftets üo
RMW1C6F0–Archive image from page 54 of Die Land-und Süsswasser-Conchylien der Vorwelt. Die Land-und Süsswasser-Conchylien der Vorwelt . dielandundssswas00sand Year: 1870 Saruiberer Land-uad SiisswrOolicltylierL Gbz. u liäi '?F Sduotterbeck. I Plarwrlis Ungeri Riass. X Ancylus decassatas id Oleacina/ Sandbergeri Thomas SfU . jirodaeta. Riu-ss sju. 30 AcicuLa.' Umbatd Reuss. 31. Romanos Rubeschu id 32/. Craspedo/ioma-Iefl67fiomoides Beass.sp.
RMRHWDEA–. Bericht über die Tätigkeit des Offenbacher Vereins für Naturkunde. . dl l) 1. a- e Pupa tetrcdus Boettg 2. a - d.Acicula Gokweana ßoettii >osttQfj! qei Lüh J M Hirschraan.T.Offenl)ack%i.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Offenbacher Verein für Naturkunde.
RMMAB824–. Dr. Johannes Leunis Synopsis der thierkunde. Ein handbuch für höhere lehranstalten und für alle, welche sich wissenschaftlich mit der naturgeschichte der thiere beschäftigen wollen . 679. i. Creseis'^ Rang. (Styliöla''' Les.). (2cf)a(c ncrlängert fegelförtnig, (lintcn äiigcfpt^t, gevabe ober leicht gcfrümmt, burd)fd)ctnenb, gtatt, o^ne ®eiten= fpatten; iDiünbung runbüd); Mantd oljne ober mit furjen feitücfien 2tnf)ängen. 6 2trtcn in allen 9)Jeeren. Cr. acicüla'^ Rang (gig 707.). @rf)ate nobelförmig, {)tnten fef)r fpilj, glatt, auf bem 9iü(fen geüelt, mit freiSriniber 9)fünbung; ?änge 15™™. 3
RMW0T8X9–Archive image from page 624 of The depths of the ocean. The depths of the ocean : a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic depthsofoceangen00murr Year: 1912 .. / PELAGIC ANIMAL LIFE 589 of these warm-water species of pteropoda are also known from the Indian and Pacific Oceans, where their geographical distribution is similar to that in the Atlantic. North of lat. 45' or 46° N. we meet with only a few of the warm- ,/y'': water forms, Creseis acicula and Clio cuspidata havi
![. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 322 INVERTEBRATE MORPHOLOGY. u priori grounds seems improbable ; but there seems to be no good reason, if the aquatic forms are derived directly from marine ancestors, why their ctenidia should have become replaced by a lung, since in the aquatic Pro- sobranch Paladina the ctenidium is still retained. On the other hand, it may be again mentioned that the terrestrial Prosobranchs such as Cydu- stoma, Acicula, etc., have lost their ctenidium and resemble a Pulmonale in th Stock Photo](https://c8.alamy.com/comp/REP41P/a-textbook-of-invertebrate-morphology-microform-invertebrates-morphology-animals-invertbrs-morphologie-animaux-322-invertebrate-morphology-u-priori-grounds-seems-improbable-but-there-seems-to-be-no-good-reason-if-the-aquatic-forms-are-derived-directly-from-marine-ancestors-why-their-ctenidia-should-have-become-replaced-by-a-lung-since-in-the-aquatic-pro-sobranch-paladina-the-ctenidium-is-still-retained-on-the-other-hand-it-may-be-again-mentioned-that-the-terrestrial-prosobranchs-such-as-cydu-stoma-acicula-etc-have-lost-their-ctenidium-and-resemble-a-pulmonale-in-th-REP41P.jpg ". A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 322 INVERTEBRATE MORPHOLOGY. u priori grounds seems improbable ; but there seems to be no good reason, if the aquatic forms are derived directly from marine ancestors, why their ctenidia should have become replaced by a lung, since in the aquatic Pro- sobranch Paladina the ctenidium is still retained. On the other hand, it may be again mentioned that the terrestrial Prosobranchs such as Cydu- stoma, Acicula, etc., have lost their ctenidium and resemble a Pulmonale in th Stock Photo")
RMREP41P–. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 322 INVERTEBRATE MORPHOLOGY. u priori grounds seems improbable ; but there seems to be no good reason, if the aquatic forms are derived directly from marine ancestors, why their ctenidia should have become replaced by a lung, since in the aquatic Pro- sobranch Paladina the ctenidium is still retained. On the other hand, it may be again mentioned that the terrestrial Prosobranchs such as Cydu- stoma, Acicula, etc., have lost their ctenidium and resemble a Pulmonale in th
![. Die Fauna südwest-Australiens. Ergebnisse der Hamburger südwest-australischen Forschungsreise 1905 . Fig. 17. Nereis heirissonensis n. sp. a ventrale Sichelborste; 'â¢'Vi- b 10. Ruder von hinten; "^i- ^ Kuder von der Mitte des Körpers; ^7i' Die Ruderäste, von denen der dorsale kaum den ventralen etwas an Länge übertrifft, enthalten jeder eine schwarze Acicula. An den mittleren Rudern enthält der dorsale Ruderast ca. 5 homogomphe Grätenborsten mit langen feingesägten Endgräten, der ventrale Ast oberhalb der Acicula ca. 5 homogomphe Gräten- und etwa 3 heterogomphe Sichelborsten Stock Photo](https://c8.alamy.com/comp/MEFM8P/die-fauna-sdwest-australiens-ergebnisse-der-hamburger-sdwest-australischen-forschungsreise-1905-fig-17-nereis-heirissonensis-n-sp-a-ventrale-sichelborste-vi-b-10-ruder-von-hinten-quoti-kuder-von-der-mitte-des-krpers-7i-die-ruderste-von-denen-der-dorsale-kaum-den-ventralen-etwas-an-lnge-bertrifft-enthalten-jeder-eine-schwarze-acicula-an-den-mittleren-rudern-enthlt-der-dorsale-ruderast-ca-5-homogomphe-grtenborsten-mit-langen-feingesgten-endgrten-der-ventrale-ast-oberhalb-der-acicula-ca-5-homogomphe-grten-und-etwa-3-heterogomphe-sichelborsten-MEFM8P.jpg ". Die Fauna südwest-Australiens. Ergebnisse der Hamburger südwest-australischen Forschungsreise 1905 . Fig. 17. Nereis heirissonensis n. sp. a ventrale Sichelborste; 'â¢'Vi- b 10. Ruder von hinten; "^i- ^ Kuder von der Mitte des Körpers; ^7i' Die Ruderäste, von denen der dorsale kaum den ventralen etwas an Länge übertrifft, enthalten jeder eine schwarze Acicula. An den mittleren Rudern enthält der dorsale Ruderast ca. 5 homogomphe Grätenborsten mit langen feingesägten Endgräten, der ventrale Ast oberhalb der Acicula ca. 5 homogomphe Gräten- und etwa 3 heterogomphe Sichelborsten Stock Photo")
RMMEFM8P–. Die Fauna südwest-Australiens. Ergebnisse der Hamburger südwest-australischen Forschungsreise 1905 . Fig. 17. Nereis heirissonensis n. sp. a ventrale Sichelborste; 'â¢'Vi- b 10. Ruder von hinten; "^i- ^ Kuder von der Mitte des Körpers; ^7i' Die Ruderäste, von denen der dorsale kaum den ventralen etwas an Länge übertrifft, enthalten jeder eine schwarze Acicula. An den mittleren Rudern enthält der dorsale Ruderast ca. 5 homogomphe Grätenborsten mit langen feingesägten Endgräten, der ventrale Ast oberhalb der Acicula ca. 5 homogomphe Gräten- und etwa 3 heterogomphe Sichelborsten
RMW0T8WR–Archive image from page 625 of The depths of the ocean;. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic depthsofoceange00murr Year: 1912 Fig. 429. Limacina retroversa, Fleming. (From Sars.) Fig. 430. Clio pyramidata, L. (From Boas.) acicula (Fig. 431) and Cavolinia gibbosa (Fig. 432) are characteristic forms. The ' whale's food,' Clione limacina (Fig. 433), is specially abundant in north- ern waters, and is better known than most of the Gymnosomata. It is 3
RMRE1N8R–. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. THE LEAF. 37. (Fig. 77), as iu the Uvularia. In the Honeysuckles the opposite leaves are sometimes united at their bases, rendering them con- nate-perfoliate (Fig. 78). The leaves of the Iris are equitant, that is, straddling over each other. Several kinds of leaves have no distinction of 73 blade and petiole; as the sword-shaped, ensiform (Lat. ensis, sword), leaves of the Daffodils; the needle-shaped, acicula
RMMABEE0–. Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs : wissenschaftlich dargestellt in Wort und Bild . Endausbreitung Nervensystem von Littorina littorea. Buchstaben wie vorher. Dazu e.sb Sub-, c.sp Supraintestinalcommissur. P Pedal- ganglien. Nach Bouvier. erlaubt sein.) Visceralnerven ge- ll y d r o b i i d e n. P1 a n a X i d e n. Eine Anzahl von Formen scheinen hier zusammenzugehören, die Hydrohien, liissoidcn, Bythinia und Byfhinella, Truncatella, Geomelania, Acme s. Äcicula (1363). Planaxis scheint nicht fern zu stehen. Ha 11 er meint, dass Bythinia unter die Paludiniden gehöre, was
RMW04DR2–Archive image from page 255 of Die fossilen Tintenfische; eine paläozoologische. Die fossilen Tintenfische; eine paläozoologische Monographie diefossilentinte00naef Year: 1922 246 IV. Teil: Die Belemnoidea oder Belemniten-artigen Tintenfische. Fig. 64 c dargestellte Belemnoidenart beziehen, deren Zugehörig- keit völlig dunkel ist. (Vgl. Belemnoteuthis!) Rhaphibelus acicula ist ein auffallend kleiner dünner, aus- gesprochen nadeiförmiger Belemnit der Solnhofener Schiefer ohne erkennbare Furchen und von kreisrundem Querschnitt. Er erinnert in der Form an die gestreckten dünnen Salpingoteuthisa
RMRJJR80–. Beautiful shells; their nature, structure, and uses familiarly explained, with directions for collecting, cleaning, and arranging them in the cabinet and descriptions of the most remarkable species. Shells. 152 Beautiful Shells. amber, and putris means filthy; but there is nothing repulsive about the shell, which, with its variety, S. gracilis (slender, is found always near water.. 60. 61-62. 63. 64. 60. Achatina acicula (the Needle Agate Shell), Muller. 61-62. Succinea putris (the Common Amber Snail), LinncBus. 63. Physa fontinalis (the Stream Bubble Shell), iUd. 64. P. hypnorum (the Slende
RMMEFM5W–. Die Fauna südwest-Australiens. Ergebnisse der Hamburger südwest-australischen Forschungsreise 1905 . Polychaeta I, Errantia. 257 fadenförmig, und erreichen kaum das Ruderende. â Die Ruder haben eine kurze terminale oder hintere (?) Endlippe, an deren Basis die Acicula endet. Die Borsten sind in jedem Ruder etwa 6 komplexe Borsten und eine einfache dünne obere Nadelborste. Die komplexen Borsten haben kurze, schmale, einseitig gewimperte und am Ende einspitzige Endsicheln; der Borstenschaft ist ausge- zeichnet gegenüber anderen Arten der Gattung Grubea durch die starke Entwicklung der kü
RMW1C2MF–Archive image from page 502 of Deutsche excursions-mollusken-fauna (1884). Deutsche excursions-mollusken-fauna . deutscheexcursio00cle Year: 1884 493 und deren viel gleichmässigeres Zunehmen, sowie durch ihren viel geringeren Durchmesser. Der Behauptung Wieders- heim's, dass sie sich von der Isarschnecke V. acicula Held nur durch Grössendifferenz unterscheide, kann ich nicht bei- stimmen. Die letztere Art ist schlanker und spindel- förmiger und hat gegenüber der vorliegenden eine verhält- nissmässig noch kleinere Mündung. X 4. Vitrella acicula Held. Paludina acicula, Held, Isis. p. 901. — vit
RMRFT3CW–. Carnegie Institution of Washington publication. 72 LEODICID/E OF THE WEST INDIAN REGION. minal teeth longer than the others. In the gilled somites a second form appears and in this region is more numerous than the first. These (text-figure 252) are flatter than the others and have about 12 equal-sized, very large teeth. The aciculse throughout the anterior portion of the body and those situated dorsally in the parapodium farther back are very black in color with bluntly rounded ends, the extreme tip covered with a colorless layer (text-figure 253). The ventral acicula, which appears in poste
RMMAB82E–. Dr. Johannes Leunis Synopsis der thierkunde. Ein handbuch für höhere lehranstalten und für alle, welche sich wissenschaftlich mit der naturgeschichte der thiere beschäftigen wollen . ?fig. 707. Uefierfic^t über ben Sau uon CresSis acicüla; öcrgrcßert, mit SSeglaffung ber Binteren ©pi^c; 9tnft(f)t »cn ber SKüdenfcite. 1 5Ioffcn; 2 Wittetlappen be§ tfufieS; 3 5[Runb; 4 (gpeiferchre; 5 mWr; 6 ©ehirnganglicn; 7 SKagen; 8 3)orni; 0 Slinbbarnt; 10 ?Ifter; 11 @efd^Ie^t§brüfe; 12 5ßcrl)pf be§ §er5eng; 13 Kammer beS ^erjenä; 14 9Jierc. äußere ©d^ale ift bei ben jungen JT^ieren aufäng(id) ftetS oorban
RMW1678X–Archive image from page 224 of Die Mollusken-Fauna Mitteleuropa's (1884). Die Mollusken-Fauna Mitteleuropa's . diemolluskenfaun22cles Year: 1884 Lge. 7 mm., Durchm. 2,3 mm. Wohnort: wie die vorige. Verbreitung: Südtirol, am Nonsberge. Bemerkung. Die Art unterscheidet sich von C. Gred- leri durch das längere Gewinde, von C. aciculoides durch den grösseren Durchmesser und das gleichmässigere Zuneh- men der Umgänge. -fotf- 5. Caecilianella aciciila Müller. Caecilianella acicula Müller in Clessin Deutsche Excurs. Moll. Fauna 2. Aufl. p. 230 f. 133. Acicula hyalina Bielz, Siebenbürgen p. 89. Cione
RMRE39TA–. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage. Zoogeography -- Geographical distribution; Animal ecology. pIG. 8.—Various species of Lartetia, from left to right: L. pellucida, photophila, putei, and acicula. After Brauer. Widespread species form local races and subspecies without special isolation. Thus the lions, zebras, antelopes, and giraffes are split into a number of geographic races, which are in part sharply defined and in part connected by transitional forms. The butterflies of Celebes are spread throughout the isla
RMMEFN48–. Die Fauna Südwest-Australiens; Ergebnisse, hrsg. von W. Michaelsen und R. Hartmeyer . Fig. 17. Nereis heirissonensis n. sp. a ventrale Sichelborste; *'7i. von hinten; ^^j^. e Euder von der Mitte des Körpers; ^^r b 10. Ruder Die Ruderäste, von denen der dorsale kaum den ventralen etwas an Länge übertrifft, enthalten jeder eine schwarze Acicula. An den mittleren Rudern enthält der dorsale Ruderast ca. 5 homogomphe Grätenborsten mit langen feingesägten Endgräten, der ventrale Ast oberhalb der Acicula ca. 5 homogomphe Gräten- und etwa 3 heterogomphe Sichelborsten, unterhalb der Acicula
RMW04NBY–Archive image from page 274 of Die Fauna Südwest-Australiens; Ergebnisse, hrsg. Die Fauna Südwest-Australiens; Ergebnisse, hrsg. von W. Michaelsen und R. Hartmeyer diefaunasdwest04hamb Year: 1907 Polychaeta I, Errantia. 257 fadenförmig, und erreichen kaum das Ruderende. — Die Ruder haben eine kurze terminale oder hintere (?) Endlippe, an deren Basis die Acicula endet. Die Borsten sind in jedem Ruder etwa 6 komplexe Borsten und eine einfache dünne obere Nadelborste. Die komplexen Borsten haben kurze, schmale, einseitig gewimperte und am Ende einspitzige Endsicheln; der Borstenschaft ist ausge
RMRG3RBD–. The Canadian field-naturalist. Figure 1. Distribution of Isoetes engelmannii in North America after Taylor et al. (1985) with the disjunct Georgian Bay locations and Michigan locality included. Ecology At both sites /. engelmannii was rooted in a fine sandy or silty substrate. Also at both sites, Isoetes echinospora, Isoetes X eatonii, Eleocharis acicula- ris, Najas flexilis, Sagittaria graminea, Vallisneria americana and small plants of Potamogeton richardsonii were growing nearby. At Big Chute additional associated species in approximate order of importance included Potamogeton gramineus,
RMME6NGK–. Die Mollusken-Fauna Mitteleuropa's . Ac. spectabilis. Lge. —6,5 mm., Durchm. 1,5 mm. Aufenthalt: im Mulmboden der Wälder, meist nur an feuchten Stellen. Verbreitung: in Krain und in der Grafschaft Görz, in Südtirol. Bemerkung. Die Art ist die grösste des Genus, und durch die starken, enge stehenden Rippen sehr ausge- zeichnet. 2. Acme lineata Draparnaud. Bulimus lineatus Drap. tabl. moll. 1801 p. 67. Acme lineata Clessin Deutsche Exe. Moll. Fauna 2. Aufl. p. 450 f. 310. Acicula fusca Gredler Tirol p. 157. Acme lineata A. Pfeiffer Kremsmünster p. 55. Gehäuse: vide Clessin 1. c. Verbreitung: i
RMW1C2P1–Archive image from page 505 of Deutsche excursions-mollusken-fauna (1884). Deutsche excursions-mollusken-fauna . deutscheexcursio00cle Year: 1884 zusammenhängend, kaum erweitert; Spindelrand zurückge- schlagen, Umschlag, die Spindelritze fast verdeckend. — Deckel? Länge 2,1 mm, Durchm. 0,9 mm; Länge der Mündung 0,7 mm, Verbreitung. Im Geniste der Jagst bei Schönthal in Würtemberg. Bemerkung. Die Art steht der Vitr. acicula Held am nächsten, hat aber bei nur 5 Windungen eine mehr cylindrische Gestalt und eine stumpfere Spitze. 8. Vitr eil a Rouge monti, Clessln. VUrella Rougemonti, Clessin, Ma
RMRGGHFK–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 18 bulletin: museum of comparative zoology. obliquely so on the lower part, and vertically so above. Entire upper side of thorax and scutellum closely and finely transversely aciculate, the acicula- tions arranged in coarse transverse rugae. Abdomen elliptic, broad when. Fig. 10.— Torymus sackenii, sp. nov. Type. seen in lateral aspect. Ovipositor stout, curving upward, issuing from the tip of the abdomen, but visible as an impression in the specimen to the base of the abdomen where it curves upward to the mi
RMRWNTCB–Elements of conchology, including the Elements of conchology, including the fossil genera and the animals elementsofconcho01bowd Year: 1822 Bulimus acicula, Drap. Buccinum majus, Lisl. (Kambeul, Adanson.) Bulimus Vufresnii, Leach. Bulla helicoides, Brocchi. Bulimus montanus, LYap. Pupa quadridentata, Drap. . . granum, Drap. Helix regina, Feruss. Achatina, Lam. • . /rater, Feruss. Cjclostoma Odostomia. (Juris Mida:, etc. Chem.) Pupa fragilis, Drap. Partula auslralis, Feruss. (Juris Midafasciata, etc. Cheran.) Cochhdina Blaiiivilliana, Feruss. (Cyclostoma, Lam.) Pupa modiolus. Clausilia plicata
RMRFT3KK–. Carnegie Institution of Washington publication. 48 LEODICHXE OF THE WEST INDIAN REGION. The first parapodium (text-figure 138) has large cirri and a very small setal portion with a few aciculse. The tenth (text-figure 140) has a much larger setal portion with distinct anterior and posterior lips and a large acicula, while the cirri are much smaller than in the first. Through the gilled region (text-figure 139) the parapodia have very small cirri and a conical posterior lip, from the apex of which protrude the acicula. In comparison with the dorsal cirrus the gill looks large, but when compar
RMRYF7JM–Effects of pollutants on marine organisms : deliberations and recommendations of the NSF/IDOE Effects of Pollutants on Marine Organisms Workshop, held in Sidney, British Columbia, August 11-14, 1974 effectsofpolluta00nsfi Year: 1976? 20 30 Concentration of Oil 40 50 Figure 6. Mean survival times of an oceanic pteropod mollusc Creseis acicula in various concentrations of water soluble and reaction of No. 2 flel oil (Exxon Bay- town). exposure. It is demonstrable that many of the aromatic compounds occurring in petroleum oils are harmful to marine animals, and rela- tive toxicities of some o
RMRGFTP3–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 18 bulletin: museum of comparative zoology. obliquely so on the lower part, and vertically so above. Entire upper side of thorax and scutellum closely and finely transversely aciculate, the acicula- tions arranged in coarse transverse rugae. Abdomen elliptic, broad when. Fig. 10.— Torymus sackenii, sp. nov. Type. seen in lateral aspect. Ovipositor stout, curving upward, issuing from the tip of the abdomen, but visible as an impression in the specimen to the base of the abdomen where it curves upward to the middle of t
RMRWTH6A–Elements of zoölogy a Elements of zoölogy : a textbook elementsofzolo00tenn Year: c1875 416 MOLLUSCA : GASTEROPODA. FIG. 601. FIG. G03. I'laniirbis lent us. Say. United States. Lim-nn-a desiiJiusa, Say. United States. ftiysn hetcmstropha, Say. United States. FIG. 601. FIG. 605. FIG. COT. Helicina orbiculala, Say. United States. FIG. 606. Acicula fused Britaiu. Cyclostoma dfntn/um. United States. Tornatrlla tnrnatilis. Britain. Some of the families of the Pnlmonifera are provided M'ith an operculuzn. Tliese are the Cyclostomidse (Cydo- stoma, HeUcina, etc., Figs. 005, CUi), and the Acieuli
RMRJJR7X–. Beautiful shells : their nature, structure, and uses familiarly explained : with directions for collecting, cleaning, and arranging them in the cabinet and descriptions of the most remarkable species. Shells; Shells. 152 Beautiful Shells. amber, and jputris means filthy; but there is nothing repulsive about the shell, which, with its variety, 8. gracilis (slender, is found always near water.. CO. G1-G2. G3. Gk 60. Achatina acicula (the Needle Agate Shell), ZL'iller. C1-G2. Succiuca putiis (the Common Amber Snail), LinncDus. 63. Physa fontinalis (the Stream Bubble Shell), ibid. Gi. P. hypnoru
RMRYG464–Effects of pollutants on marine organisms : deliberations and recommendations of the NSF/IDOE Effects of Pollutants on Marine Organisms Workshop, held in Sidney, British Columbia, August 11-14, 1974 effectsofpolluta00nsfi Year: 1976? 0.1 0.4 0.5 0.2 0.3 Exposure time, hours Figure 7. Mean survival of Creseis acicula vs concentrations of water soluble fractions of No. 2 fuel oil for various exposure times. Compare Figure 6. data are limited, restricted as they are to one species, whereas it is to be expected that species differences will exist in this regard. Trace Metals The biological eff
![. Carnegie Institution of Washington publication. LEODICID^E OF THE WEST INDIAN REGION. 63 Ehlers (1887) described a single specimen collected at 321 fathoms in latitude 28° 42" N., longitude 38C 40" W. While his figure would indicate that his specimen was much contracted, it seems to have been about the size of the one I found at Key West and to agree with it in most respects, though he stated that it is without eyes. He figured the ventral acicula as smooth, while in mine it was bifid. He described a posterior three-pointed lip in the anterior parapodia, which does not appear in hi Stock Photo](https://c8.alamy.com/comp/RFT3GC/carnegie-institution-of-washington-publication-leodicide-of-the-west-indian-region-63-ehlers-1887-described-a-single-specimen-collected-at-321-fathoms-in-latitude-28-42quot-n-longitude-38c-40quot-w-while-his-figure-would-indicate-that-his-specimen-was-much-contracted-it-seems-to-have-been-about-the-size-of-the-one-i-found-at-key-west-and-to-agree-with-it-in-most-respects-though-he-stated-that-it-is-without-eyes-he-figured-the-ventral-acicula-as-smooth-while-in-mine-it-was-bifid-he-described-a-posterior-three-pointed-lip-in-the-anterior-parapodia-which-does-not-appear-in-hi-RFT3GC.jpg ". Carnegie Institution of Washington publication. LEODICID^E OF THE WEST INDIAN REGION. 63 Ehlers (1887) described a single specimen collected at 321 fathoms in latitude 28° 42" N., longitude 38C 40" W. While his figure would indicate that his specimen was much contracted, it seems to have been about the size of the one I found at Key West and to agree with it in most respects, though he stated that it is without eyes. He figured the ventral acicula as smooth, while in mine it was bifid. He described a posterior three-pointed lip in the anterior parapodia, which does not appear in hi Stock Photo")
RMRFT3GC–. Carnegie Institution of Washington publication. LEODICID^E OF THE WEST INDIAN REGION. 63 Ehlers (1887) described a single specimen collected at 321 fathoms in latitude 28° 42" N., longitude 38C 40" W. While his figure would indicate that his specimen was much contracted, it seems to have been about the size of the one I found at Key West and to agree with it in most respects, though he stated that it is without eyes. He figured the ventral acicula as smooth, while in mine it was bifid. He described a posterior three-pointed lip in the anterior parapodia, which does not appear in hi
RMRYH67A–Einführung in die europäische Meeresmolluskenfauna an der Hand ihrer Hauptrepräsentanten einfhrungindieeu00bchn Year: 1913 99 Bei Pterotrachea coronäta Forskai, die bis 30 Zentimeter lang wird, und der weit kleineren und selteneren P. scutäta Qegenbaur (Text-Fig. 105) finden wir keine Tentakeln; der Schwanz ist lang und zugespitzt und trägt einen Fadenanhang, beim Männchen sitzt ein Saug- napf an der Flosse. Bei ersterer ist der glashelle Körper farblos, bei letzterer purpurgefleckt. Beide bevölkern das Mittelmeer. Text-Fig. 102. Creseis acicula von der Rückenseite vergrößert (nach Qegenb
RMRG7320–. Bulletin - United States National Museum. Science. PHILIPPINE POLYCHAETOUS ANNELIDS 315 number of other polynoids.1 Viewed from the end, the parapodium has an oval outline, the posterior and anterior lips of the setal lobe being equal in length, the former continuous, the latter broken in the middle. The sixteenth parapodium with its elytrophore is shown in Figure 1, b. A heavy acicula reaches the surface near the middle of the parapodium. Dorsal to this is a tuft of very long, sharp-pointed setae carrying a fringe of fine hairs along one margin. Ventral to these are smaller ones of several
RMRYH91H–East coast marine shells; descriptions of shore mollusks together with many living below tide mark, from Maine to Texas inclusive, especially Florida eastcoastmarines00rome Year: 1937 102 EAST COAST MARINE SHELLS on PI. 68. Young specimens may be separated from T. acicula by the less convex whorls and weaker ribs. Depth range 7-60 fathoms. PI. 33, Fig. 21 Labrador to Massachusetts Bay Family Vermetldae (Worm Shells) Shell often spiral when young, at- tached or free, irregular In adult; aper- ture round; operculum corneous. These animals live In sponges, mud, upon shells or coral and are very
RMRFT361–. Carnegie Institution of Washington publication. LEODICID.E OF THE WEST INDIAN REGION. 109 plate of the form shown in text-figure 404, but with very indefinite outlines. This I consider similar to the plate shown in text-figure 398, and not homologous with the mandibles of other genera. I was unable to find any true mandibles. There is but one form of seta (text-figure 405). This is rather small, much curved toward the apex, and with a narrow wing along the convex margin. Each parapodium has a strong acicula extending to some distance beyond the setal lobe. Each acicula has a narrow lanceolat
RMRYH7JB–Echinodermen (Stachelhäuter) echinodermenstac01ludw Year: 1889 Fig. 11. Schema über die Anordnung der grossen (und mittelgrossen) und kleinen Fühler hei Pseiidnaicumis nfrirana (Semp.). Fig. 12. Desgleichen von Pfseudocucumis acicula (Semp.). Der mittlere schraflirfe Kreis bedeutet die Lage der Mundöffnung, Z)Fdie Lage der dorso-ventralen Medianebene, die nicht schrafiirten Kreise die Lage und relative Grösse der Fühler, die Pfeile die Richtung der Badien. und vielen anderen Arten dieser Gattung wechseln fünf Paar grosse mit iunf Paar kleinen. — Bei Pseudocucumis africana (Semp.) und acicu
RMRGB4GX–. The Bulletin of zoological nomenclature. Animals. 2 mm. The lectotype of Cecilioides janii (De Betta & Martinati. 1855) (fig. 1) and a shell of C. cicicula (O.F. Miiller, 1774) (fig. 2). Both specimens were collected in the Val di Non, northern Italy, by E. De Betta and published in his 1852 monograph as Achalina acicula and A. aciculoides respectively; they are kept in the Museo Civico di Storia Naturale di Verona.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations
RMRHNXTR–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. MARIAN H. PETTIBONE. C-. Four pairs of well developed maxillae, with pair of elongate rodlike maxillary carriers and shorter unpaired piece (basal or maxillae I large, strong, hooked, forceps-like; maxillae II rectangular plates, sometimes denticled; maxillae III and IV each a single strong thorn-like tooth). Mandibles absent. Parapodia with heavy acicula or acicular setae, the tips of which usually protrude. Prostomium without eyes. Genus Drilonci'ds Claparede (includes Labidognathus Caullery; see below). G1. Parasitic in p
RMRG3RBN–. The Canadian field-naturalist. 68 The Canadian Field-Naturalist Vol. 105. Figure 1. Distribution of Isoetes engelmannii in North America after Taylor et al. (1985) with the disjunct Georgian Bay locations and Michigan locality included. Ecology At both sites /. engelmannii was rooted in a fine sandy or silty substrate. Also at both sites, Isoetes echinospora, Isoetes X eatonii, Eleocharis acicula- ris, Najas flexilis, Sagittaria graminea, Vallisneria americana and small plants of Potamogeton richardsonii were growing nearby. At Big Chute additional associated species in approximate order of
RMRHNXT9–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. C-. Four pairs of well developed maxillae, with pair of elongate rodlike maxillary carriers and shorter unpaired piece (basal or maxillae I large, strong, hooked, forceps-like; maxillae II rectangular plates, sometimes denticled; maxillae III and IV each a single strong thorn-like tooth). Mandibles absent. Parapodia with heavy acicula or acicular setae, the tips of which usually protrude. Prostomium without eyes. Genus Drilonci'ds Claparede (includes Labidognathus Caullery; see below). G1. Parasitic in peri-intestinal blood
![. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 52 CONCHOLOGIA CESTRICA. DIAGRAM OF THE SUB-FAMILIES, GENERA, AND SPECIES, OF THE FAMILY PUPADA:. Family. PUPAD^. Sub-Families. ZVINJE. PUPIN^. Genera. ZUA. ACICULA. Leucochila. VERTIGINININ^. Vertigo. Sub-genus ZUA, Leach, 1820. Animal of Zua, enlarged. â [Reeve.] "Pin- 01 Pig. 91. Species. lubricoidea. acicula. falla.x, marginata, pentodon, armifera, contracta, corticaria. ovata, Goiildii, milium, decora.. Shell small, elongated, cylindrical, or sub-conic; whorls numerous; apex sub-obtuse; Stock Photo](https://c8.alamy.com/comp/REC71A/conchologia-cestrica-the-molluscous-animals-and-their-shells-of-chester-county-pa-mollusks-52-conchologia-cestrica-diagram-of-the-sub-families-genera-and-species-of-the-family-pupada-family-pupad-sub-families-zvinje-pupin-genera-zua-acicula-leucochila-vertigininin-vertigo-sub-genus-zua-leach-1820-animal-of-zua-enlarged-reeve-quotpin-01-pig-91-species-lubricoidea-acicula-fallax-marginata-pentodon-armifera-contracta-corticaria-ovata-goiildii-milium-decora-shell-small-elongated-cylindrical-or-sub-conic-whorls-numerous-apex-sub-obtuse-REC71A.jpg ". Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 52 CONCHOLOGIA CESTRICA. DIAGRAM OF THE SUB-FAMILIES, GENERA, AND SPECIES, OF THE FAMILY PUPADA:. Family. PUPAD^. Sub-Families. ZVINJE. PUPIN^. Genera. ZUA. ACICULA. Leucochila. VERTIGINININ^. Vertigo. Sub-genus ZUA, Leach, 1820. Animal of Zua, enlarged. â [Reeve.] "Pin- 01 Pig. 91. Species. lubricoidea. acicula. falla.x, marginata, pentodon, armifera, contracta, corticaria. ovata, Goiildii, milium, decora.. Shell small, elongated, cylindrical, or sub-conic; whorls numerous; apex sub-obtuse; Stock Photo")
RMREC71A–. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 52 CONCHOLOGIA CESTRICA. DIAGRAM OF THE SUB-FAMILIES, GENERA, AND SPECIES, OF THE FAMILY PUPADA:. Family. PUPAD^. Sub-Families. ZVINJE. PUPIN^. Genera. ZUA. ACICULA. Leucochila. VERTIGINININ^. Vertigo. Sub-genus ZUA, Leach, 1820. Animal of Zua, enlarged. â [Reeve.] "Pin- 01 Pig. 91. Species. lubricoidea. acicula. falla.x, marginata, pentodon, armifera, contracta, corticaria. ovata, Goiildii, milium, decora.. Shell small, elongated, cylindrical, or sub-conic; whorls numerous; apex sub-obtuse;
RMRFT3HX–. Carnegie Institution of Washington publication. . TEXT-FIGURES 174 to 183. 174. First parapodium x40. 175. /Tenth parapodium x34. 176. Gilled parapodium x34. 177. Simple seta x50. Leodice bucciensis Treadwell. 181. Ventral acicula x200. 182. Maxilla x24. 183. Mandible x24. 178. Compound seta x80. 179. Pectinate seta x3SO. 180. Dorsal acicula x200.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Carnegie Institution of Wa
RMRHGHC6–. Boletin de la Sociedad de Biología de Concepción. Sociedad de Biología de Concepción; Biology; Biology. Bol. Soc. Biol. Concepción. Chile. Tomo 61, 1990 conical, papillated, with a pigmented área on cirrophore. Cirrostyle of anterior parapodia have a sharper distal end than posterior segments, which are rounder. Distal end of cirrophores of posterior parapodia extend clearly beyond distal end of neuropodia (Figs. 2 and 3). All parapodia papillated. Neuropodial lobes stout, conical with thick, ventrally located, acicula. Neurosetae, 20 — 25 in number, finely serrated on interior edge, fálcate
RMRDDX96–. Effects of pollutants on marine organisms : deliberations and recommendations of the NSF/IDOE Effects of Pollutants on Marine Organisms Workshop, held in Sidney, British Columbia, August 11-14, 1974. Marine pollution -- Physiological effect. 20 30 Concentration of Oil 40 50 Figure 6. Mean survival times of an oceanic pteropod mollusc Creseis acicula in various concentrations of water soluble and reaction of No. 2 flel oil (Exxon Bay- town). exposure. It is demonstrable that many of the aromatic compounds occurring in petroleum oils are harmful to marine animals, and rela- tive toxicities of
![. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 54 CONCHOLOGIA CESTRICA, Sub-genus ACICULA, Risso, 1826. A.ninial of jLcicula, enlaryed, — [Reeve.] Fig. 96.. Shell slender, elongate, turreted, imperforate, thin, polished; whorls 6 or 7, the last rounded at base; columella slightly twisted, truncated at base, aperture oblong, peristome simple, acute. A. acicula, Muller. Buccinum acicula, Miill., Hist. Verm,, II., A.ncicula, enlarged. I77A. [b: & b.] I'ig- 97. Shell very delicate, transparent, bluish- white, cylindrical; whorls 7, the last on Stock Photo](https://c8.alamy.com/comp/REC715/conchologia-cestrica-the-molluscous-animals-and-their-shells-of-chester-county-pa-mollusks-54-conchologia-cestrica-sub-genus-acicula-risso-1826-aninial-of-jlcicula-enlaryed-reeve-fig-96-shell-slender-elongate-turreted-imperforate-thin-polished-whorls-6-or-7-the-last-rounded-at-base-columella-slightly-twisted-truncated-at-base-aperture-oblong-peristome-simple-acute-a-acicula-muller-buccinum-acicula-miill-hist-verm-ii-ancicula-enlarged-i77a-b-amp-b-iig-97-shell-very-delicate-transparent-bluish-white-cylindrical-whorls-7-the-last-on-REC715.jpg ". Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 54 CONCHOLOGIA CESTRICA, Sub-genus ACICULA, Risso, 1826. A.ninial of jLcicula, enlaryed, — [Reeve.] Fig. 96.. Shell slender, elongate, turreted, imperforate, thin, polished; whorls 6 or 7, the last rounded at base; columella slightly twisted, truncated at base, aperture oblong, peristome simple, acute. A. acicula, Muller. Buccinum acicula, Miill., Hist. Verm,, II., A.ncicula, enlarged. I77A. [b: & b.] I'ig- 97. Shell very delicate, transparent, bluish- white, cylindrical; whorls 7, the last on Stock Photo")
RMREC715–. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 54 CONCHOLOGIA CESTRICA, Sub-genus ACICULA, Risso, 1826. A.ninial of jLcicula, enlaryed, — [Reeve.] Fig. 96.. Shell slender, elongate, turreted, imperforate, thin, polished; whorls 6 or 7, the last rounded at base; columella slightly twisted, truncated at base, aperture oblong, peristome simple, acute. A. acicula, Muller. Buccinum acicula, Miill., Hist. Verm,, II., A.ncicula, enlarged. I77A. [b: & b.] I'ig- 97. Shell very delicate, transparent, bluish- white, cylindrical; whorls 7, the last on
RMRG73C5–. Bulletin - United States National Museum. Science. POLYCHAETE WORMS, PART 1 199 to blackish. Preaciciilar setae short, dark brown, barred; postacicular setae relatively short, deep yellow, minutely serrated. Tips of acicula may be covered with chitinous plates. Ventral cirri short, flattened, triangular to conical. Branchiae begin on setigers 6-8, small anteri- orly, becoming larger, then in the posterior half becoming smaller where they may be equal in size to the dorsal cirri, absent from the last 12 or so segments; where best developed, they are large, recurved, sickle-shaped. Dorsal cirr
RMRFT3T1–. Carnegie Institution of Washington publication. 34 35. TEXT-FIGURES 31 to 40. Leodice stigmatura Verrill. 31. First parapodium x34. 35. Compound seta x420. 38. Hooked acicula x320. 32. Tenth parapodium x34. 30. Pectinate seta x420. 39. Maxilla x52. 33. Middle parapodium x34. 37. Simple acicula x320. 40. Mandible x52. 34. Simple seta x420.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Carnegie Institution of Washington.
RMRFT3A1–. Carnegie Institution of Washington publication. 92 LEODICID.E OF THE WEST INDIAN REGION. along its dorsal surface to the parapodium (text-figure 325). The dorsal cirrus becomes more slender in these later somites, in which there is a single acicula, its blunt end pro- truding between the parapodial lobes. At about somite 35 a second (ventral) acicula makes its appearance (text-figure 326, a parapodium from somite 70). Behind the region of somite 35 the cirri resemble those of figure 326. The setae are uniform in character throughout the body. The compound seta (text-figure 327) has the apex
RMRH02TK–. Bulletin. Science; Natural history; Natural history. Figure 2. Arbella endonata, new species. A, maxillary plates and carriers; B. anterior end in dorsal view; C, bilimbate seta; D, setiger 100 in anterior view; E, mandibles. (Chamberlin), and A. novecrinita asymmetrica (Crossland), by its possession of eye spots. Ara- bella semimaculata (Moore) and A. tricolor (Montagu) with 2-3 neuropodial acicula are dis- tinct from A. endonata which has only one neuro- podial aciculum. The specimens of Arabella iricolor reported by Hartman (1968) in Diopatra ornata are unfortunately no longer available.
RMRFT3PK–. Carnegie Institution of Washington publication. 32 LEODICIDJE OF THE WEST INDIAN HEGION. striated hood. The apex of the acicula is colorless, but for most of its length it is a dark- brown color. The jaw apparatus is dark. The maxilla (text-figure 75) has short carriers with long forceps, the whole being much darker than the plates. The proximal paired plate. 84 TEXT-FIGURES 66 to 76. Leodice mutilata Webster. 66. First parapodium x30. 70. Simple seta x230. 74. Acicula x370. 67. Tenth parapodium x21. 71. Detail of simple seta X 300. 75. Maxilla x21. 68. Seventieth parapodium x21. 72. Compoun
RMRFT3MJ–. Carnegie Institution of Washington publication. 121. TEXT-FIGURES 117 to 126. 117. Tenth parapodium x34. 118. Middle parapodium x24. 119. Forked acicula x!93. 120. Posterior parapodium x55. 121. Simple seta x245. 122. Compound seta x245. 123. Pectinate seta x245. Leodice filamentosa Grube. 124. Simple acicula x!93. 125. Maxilla x27. 126. Mandible x27.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Carnegie Institution o
RMRJW1FH–. Atti della Società toscana di scienze naturali, residente in Pisa. Natural history; Science; Science. e. DE STKFANI MOLLUSCHI CONTINENTALI PLIOCENICI AmwVLWAE-Cassidula myotis Brocchi. . ^ » Bellavdii De Stefani. » Cari/c/titoìi lufolabiatum De Stefei ,, » conforme De Stefani . C.^^ClUA^ELUV^E-filandma h.nensis D'Ancona jj » senensìs De Stefani » Acicula pseuclocyliclina De Stefan tì^LiciDAE-Vertiffo Bosniackii De Stefani . y, » Brusinai De Stefani . . „ ClausUia mastodontophila Sismonda » SeliT, suttonensis S. Wood . » » Fuehsi De Stefani . » » Majoris De Stefani . » » italica De Stefani .
RMRDHMRM–. Natural history of animals;. Zoology. 222 MOLLUSKS: HETEROl'ODS AND PTEROPODS. in an aquarium, where they are also very useful, devour, ing the green confervje that grow on the glass. Fig. 416. — Heli- ^^^1 Fig. 418.— cina. U. States. ^ Acicula. Fig. 417.— Great Fig. 419 — Clyclostoma. Britain. Tornatella. United States. Great Britain Fig. 420. — Bul- la. U. States. Sea Slugs. These have no shells, and many of them only slightly resemble the Gastropods before described. See Fig- ures 421-425.. Fig. 422. — Doris. Great Britain. Fig. 423. — Elysia. Fig. 424. — At- Great Britain. lanta. South A
RMRH04H2–. Bulletin. Science; Natural history; Natural history. 20 BULLETIN SOUTHERN CALIFORNIA ACADEMY OF SCIENCES VOLUME 75. Figures 1-6. Dioplosyllis hroacli. new species. 7, Dorsal view of anterior end, x 10; 2, Dorsal view of anterior end showing prostomial details, X 20; 3. Distal end of pharynx showing digiti- form process, X40; 4, Seventh setiger, anterior view; 5, Compound falcigers from neuropodium of seventh setiger, X500; 6, Neuropodial acicula from seventh segment, X500.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabil
RMRDE31A–. Natural history of animals. Containing brief descriptions of the animals figured on Tenney's Natural history tablets, but complete without the tablets. Zoology. SEA-SLUGS, HETBROPODS AND PTEEOPODS. 209 Fig. 418. —Heli- cina. U. States. Kg. 420.— W^l Fig. 422.—Bnl- Acicula. ^Ey la. U. States. Fig. 419.— Britain. Fig. 421.— Clyclostoma. Tornatella. United States. Britain. SEA-SLUGS. These have no shells, and many of them only slightly resemble the Gasteropods before described. See Fig- ures 423-426.. Fig. 425. — Elysia. Britaii. Fig. 427. — At- lanta. South Atlantic.. Please note that these im
RMRDDX95–. Effects of pollutants on marine organisms : deliberations and recommendations of the NSF/IDOE Effects of Pollutants on Marine Organisms Workshop, held in Sidney, British Columbia, August 11-14, 1974. Marine pollution -- Physiological effect. 0.1 0.4 0.5 0.2 0.3 Exposure time, hours Figure 7. Mean survival of Creseis acicula vs concentrations of water soluble fractions of No. 2 fuel oil for various exposure times. Compare Figure 6. data are limited, restricted as they are to one species, whereas it is to be expected that species differences will exist in this regard. Trace Metals The biologic
RMRR5DC7–. Abhandlungen zur geologischen Specialkarte von Preussen und den Thüringischen Staaten. 226 IT. Die Entwickelimg der devonischen Aviculiden und Pectiniden. [4241 fehlen grobgerippte Formen wie Ptevlnaea costata bei den Aviculae nicht ganz. Die Aufstelhmg eines »Stammbaumes« ist für die beiden an erster Stelle behandelten Gruppen noch am ehesten möglich — selbstverständlich mit der bereits hervorgehobenen Ein- schränkung. Eine Vergleichung der auf Tafel III und XIV abgebildeten Muscheln lässt den Zusammenhang zwischen den einzelnen Formen erkennen. Die von Acicula troglodytes und cJathrata abs
RMRFT3K9–. Carnegie Institution of Washington publication. 50 LEODICID^ OF THE WEST INDIAN REGION. tions on the apices of the basal portions and small terminal portions with two subequal teeth. The pectinate setse (text-figure 149) are rather broad at the apex with about 16. TEXT-FIGURES 144 to 153. Leodice culebra Treadwell. TEXT-FIGURES 154 to 163. Leodice tenuis Treadwell. 144. First parapodium x60. 145. Tenth parapodium x60. 146. Posterior parapodium x60. 147. Simple seta x310. 148. Compound seta x310. 149. Pectinate seta x310. 150. Dorsal acicula x310. 151. Ventral acicula x310. 152. Maxilla x32.
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