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Hippopus Stock Photos and Images
RM2A2MRT9–Hippopus maculatus, Print, Hippopus is a genus of large tropical saltwater clams, marine bivalve molluscs in the subfamily Tridacninae, the giant clam subfamily
RMP7F3BR–Bivalvia clam shells: Venus clam, Hysteroconcha dione 1-3, spiny cockle, Acanthocardia aculeata 4,5, heart cockle, Corculum cardissa 6-9, fluted giant clam, Tridacna squamosa 10-13 and bear paw clam, Hippopus hippopus 14. Chromolithograph by Adolf Glitsch from an illustration by Ernst Haeckel from Art Forms in Nature, Kunstformen der Natur, Liepzig, Germany, 1904.
RMF87F9T–Bivalvia clam shells: Venus clam, Hysteroconcha dione 1-3, spiny cockle, Acanthocardia aculeata 4,5, heart cockle, Corculum cardissa 6-9, fluted giant clam, Tridacna squamosa 10-13 and bear paw clam, Hippopus hippopus 14. Chromolithograph by Adolf Glitsch from an illustration by Ernst Haeckel from Art Forms in Nature, Kunstformen der Natur, Liepzig, Germany, 1904.
RMP23F56–. Hippopus maculatus 149 Hippopus maculatus - - Print - Iconographia Zoologica - Special Collections University of Amsterdam - UBAINV0274 077 05 0004
RM2RFXR0H–Strawberry clam (Hippopus hippopus) from Hook Island (Whitsunday Islands), Queensland, Australia.
RM2B6TT13–Hippopus schelp afkomstig uit het wrak van het VOC-schip de 'Witte Leeuw' Opnamedatum: 2018-02-22
RM2H120GB–Shells: Hippopus maculatus Lam, c. 1640s. Wenceslaus Hollar (Bohemian, 1607-1677). Etching and engraving;
RF2B9AX4H–Hippopus from V.O.C. ship the 'Witte Leeuw', Shell from V.O.C. ship the 'Witte Leeuw', Sint-Helena, Dutch East India Company, niet van toepassing, before 1613, l 10.9 cm × w 13.8 cm × d 4.6 cm, Reimagined by Gibon, design of warm cheerful glowing of brightness and light rays radiance. Classic art reinvented with a modern twist. Photography inspired by futurism, embracing dynamic energy of modern technology, movement, speed and revolutionize culture.
RM2HTRBP5–Detail of the mantle of a giant clam, Hippopus hippopus, growing on a coral reef in Indonesia. Giant clams have a symbiosis with tiny dinoflagellates.
RM2A2MRTB–Hippopus maculatus, Print, Hippopus is a genus of large tropical saltwater clams, marine bivalve molluscs in the subfamily Tridacninae, the giant clam subfamily
RF2RG17XY–Macro photograph of the symmetrical halves of a Bear Claw clam seashell (Hippopus hippopus); found in the SW Pacific
RM2AJ95A8–A conchological manual . a, Crania.. Sphaji-ulites, Hippurites, Radiolites, Birostrites, Calceok.. Anomia, Placuna, Ostrfea, Grypha;.. Spondylus, Plicatula, Hinnites, Pecten, Pedum, Lima. 5 Vulsella, Malleus, Avicula, Perna, Crenatula. i Inoceramus, Catillus, Pulvinites, Gervillia.. Pinna, Mytilus., Area, Pectunculus, Nucula.. Anodon, Unio, Cardita.. Cbama, Diceras, Etheria, Tridacna, Hippopus, Isocardium, Trigonia. / Cardium, Donax, Tellina, Lucina, Cyclas. ) Cyprina, Mactra, Erycina, Crassatella.^ Venerirupis, Venus, Coralliophtiga. (. Clotlio, Corbula, Spbeenia, Ungulina. ! Pandora, Anatina
RMP23F54–. Hippopus maculatus 149 Hippopus maculatus - - Print - Iconographia Zoologica - Special Collections University of Amsterdam - UBAINV0274 077 05 0003
![. Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena. 140 Die Fauna der Solnhofener Plattenkalke. I4O ableiten kann. Dazwischen lebte eine reiche Fauna dickschaliger Schnecken und Muscheln, unter denen die Gattung Diceras mit ihren langen, widderhornartigen Wirbeln so häufig ist, daß man die ganze Ablagerung als „Diceraskalk" bezeichnet. Grobe dickschalige Austern, Pecten, Hinnites, Lima, Pinna, Pachymytilus, Trichites, Pachyrisma und andere Formen lassen auf den ersten Blick erkennen, daß sie wie die recenten Tridacna, Hippopus und Chama in der bewegten Brandungsz Stock Photo](https://c8.alamy.com/comp/PFE0Y5/denkschriften-der-medicinisch-naturwissenschaftlichen-gesellschaft-zu-jena-140-die-fauna-der-solnhofener-plattenkalke-i4o-ableiten-kann-dazwischen-lebte-eine-reiche-fauna-dickschaliger-schnecken-und-muscheln-unter-denen-die-gattung-diceras-mit-ihren-langen-widderhornartigen-wirbeln-so-hufig-ist-da-man-die-ganze-ablagerung-als-diceraskalkquot-bezeichnet-grobe-dickschalige-austern-pecten-hinnites-lima-pinna-pachymytilus-trichites-pachyrisma-und-andere-formen-lassen-auf-den-ersten-blick-erkennen-da-sie-wie-die-recenten-tridacna-hippopus-und-chama-in-der-bewegten-brandungsz-PFE0Y5.jpg ". Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena. 140 Die Fauna der Solnhofener Plattenkalke. I4O ableiten kann. Dazwischen lebte eine reiche Fauna dickschaliger Schnecken und Muscheln, unter denen die Gattung Diceras mit ihren langen, widderhornartigen Wirbeln so häufig ist, daß man die ganze Ablagerung als „Diceraskalk" bezeichnet. Grobe dickschalige Austern, Pecten, Hinnites, Lima, Pinna, Pachymytilus, Trichites, Pachyrisma und andere Formen lassen auf den ersten Blick erkennen, daß sie wie die recenten Tridacna, Hippopus und Chama in der bewegten Brandungsz Stock Photo")
RMPFE0Y5–. Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena. 140 Die Fauna der Solnhofener Plattenkalke. I4O ableiten kann. Dazwischen lebte eine reiche Fauna dickschaliger Schnecken und Muscheln, unter denen die Gattung Diceras mit ihren langen, widderhornartigen Wirbeln so häufig ist, daß man die ganze Ablagerung als „Diceraskalk" bezeichnet. Grobe dickschalige Austern, Pecten, Hinnites, Lima, Pinna, Pachymytilus, Trichites, Pachyrisma und andere Formen lassen auf den ersten Blick erkennen, daß sie wie die recenten Tridacna, Hippopus und Chama in der bewegten Brandungsz
RMT1HF3C–Discovery reports (1956) Discovery reports discoveryreports27inst Year: 1956 138 . DISCOVERY REPORTS are commonly opaque. At Villefranche I have observed that the nectophores of undisturbed specimens of H. hippopus are quite transparent, but that when disturbed they immediately become opaque. After a rest they once more become transparent. As far as is known no research has been carried out upon this phenomenon. But I have recently found a description of this same phenomenon by Chun (1888 a) which he observed whilst working in the Canaries. He said that the turbidity occurred in the ectoderm
RM2WE56F0–Schelp, Hippopus Hippopus, Wenceslaus Hollar, 1644 - 1652 print Antwerp paper etching molluscs (+ shell, snail-shell etc.)
RMW56J0K–Hippopus from V.O.C. ship the 'Witte Leeuw', Shell from V.O.C. ship the 'Witte Leeuw', Sint-Helena, Dutch East India Company, niet van toepassing, before 1613, l 10.9 cm × w 13.8 cm × d 4.6 cm
RM2AWCY6H–The Cambridge natural history . angular, anterior margin short or trun-cated, with a deep lunule. Single genus,Lunulicardium (Palaeozoic). Fam. 3. Tridacnidae.—Mantle ori-fices widely separated, foot short, bys-siferous, no anterior adductor; shellequivalve, large, thick, usually gapingin front, one cardinal tooth and one oreach valve, no pallial sinus. Miocene—Hippopus. The muscular power of the great Tridoxna is immense.Once caught between their gaping valves, a mans hand or footcan scarcely be withdrawn. Two valves of 2 gigns in the BritishMuseum weigh respectively 154 and 156 lbs. FA:r.
RMP23F53–. Hippopus maculatus 149 Hippopus maculatus - - Print - Iconographia Zoologica - Special Collections University of Amsterdam - UBAINV0274 077 05 0002
![. 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. 929. Hippöpus maculatus. a Bon oben; b »cn ber tinten Seite; in 1/4 ber natürl. ©rege. 15.^-. HipiUirUidac'-^ (Rudistae'"0 (§. 788, 15.). @cf)a(e §. 803. fet)r unglei^=nappig, bidwanbig, rcd)te Etappe üertängert fegeiförmig unb mit ber 1) Sreiecffijrmig. 2) Tridäcna= ä^nlic^e. 3) Tp(8axvcr eine 3lrt 3lnfter bei ^^liniuS. 4) atiefe. 5) ft^uppig. 6) fafrangetb (crocus ©afran). 7) Inizoti ^?ferb, Kou; Jug Stock Photo](https://c8.alamy.com/comp/MAB7DA/dr-johannes-leunis-synopsis-der-thierkunde-ein-handbuch-fr-hhere-lehranstalten-und-fr-alle-welche-sich-wissenschaftlich-mit-der-naturgeschichte-der-thiere-beschftigen-wollen-5ig-929-hipppus-maculatus-a-bon-oben-b-cn-ber-tinten-seite-in-14-ber-natrl-rege-15-hipiuiruidac-rudistaequot0-788-15-@cfae-803-fetr-unglei=nappig-bidwanbig-rcdte-etappe-ertngert-fegeifrmig-unb-mit-ber-1-sreiecffijrmig-2-tridcna=-nlice-3-tp8axvcr-eine-3lrt-3lnfter-bei-linius-4-atiefe-5-ftuppig-6-fafrangetb-crocus-afran-7-inizoti-ferb-kou-jug-MAB7DA.jpg ". 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. 929. Hippöpus maculatus. a Bon oben; b »cn ber tinten Seite; in 1/4 ber natürl. ©rege. 15.^-. HipiUirUidac'-^ (Rudistae'"0 (§. 788, 15.). @cf)a(e §. 803. fet)r unglei^=nappig, bidwanbig, rcd)te Etappe üertängert fegeiförmig unb mit ber 1) Sreiecffijrmig. 2) Tridäcna= ä^nlic^e. 3) Tp(8axvcr eine 3lrt 3lnfter bei ^^liniuS. 4) atiefe. 5) ft^uppig. 6) fafrangetb (crocus ©afran). 7) Inizoti ^?ferb, Kou; Jug Stock Photo")
RMMAB7DA–. 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. 929. Hippöpus maculatus. a Bon oben; b »cn ber tinten Seite; in 1/4 ber natürl. ©rege. 15.^-. HipiUirUidac'-^ (Rudistae'"0 (§. 788, 15.). @cf)a(e §. 803. fet)r unglei^=nappig, bidwanbig, rcd)te Etappe üertängert fegeiförmig unb mit ber 1) Sreiecffijrmig. 2) Tridäcna= ä^nlic^e. 3) Tp(8axvcr eine 3lrt 3lnfter bei ^^liniuS. 4) atiefe. 5) ft^uppig. 6) fafrangetb (crocus ©afran). 7) Inizoti ^?ferb, Kou; Jug
RMT1HAJJ–Discovery reports (1956) Discovery reports discoveryreports27inst Year: 1956 SYSTEMATIC AND BIOLOGICAL ACCOUNT 75 We are now in a position to see how closely alike are the larvae of two species of Prayidae and of three species of Hippopodiidae, for Chun (18880, b, 1913) had already figured three larvae of Hippo- podius hippopus. In all except Rosacea cymbiformis there is a deep, pocket-shaped hydroecium, and in none is there an extension of the somatocyst distad to the pedicular canal of the nectosac. All, except Vogtia glabra, where they are missing, have simple straight, lateral subumbral
RM2W93M46–Hippopus shell from the wreck of the Dutch East India ship Witte Leeuw, before 1613 Shell from V.O.C. ship the 'Witte Leeuw'. . Sint-Helena
RM2JE4BJ7–Shell, hippopus hippopus, Wenceslaus Hollar, 1644 - 1652, print maker: Wenceslaus Hollar, Antwerp, 1644 - 1652, paper, etching, h 96 mm × w 149 mm
RM2CJ6FNJ–. The shell book . ria-tions, radiating and concentric, which are stronger in the broadinterstices than on the ridges. The white surface has a yellowtinge. Diameter, 3 to 4 inches. Habitat.—Moluccas. Three smaller species occur in the Philippines, all obliquelyelongated, and well ruffled, so that one can know them at a glanceas belonging to the genus. THE BEARS PAW CLAMGenus HIPPOPUS, Lam. Shell massive, equivalve, regular; hinge with two teeth in eachvalve; lunule nearly closed; sculpture of elaborate frilled scaleson its numerous ridges and interstices. Single species. The Spotted Bears Paw
RM2CP0RXB–. The oist . 2. Cypriea lynx 33.Singapore 15 Cassis rufaZanzibar 25 Turrittella duplicata.. Ceylon 25 Nerita peleronta West Indies 10 Hallotis Iris Japan 25 Helix (Acavus) melan- otragus, Ceylon 20 Asaphis coccinea Bahamas 15 Tellina radiata Bahamas 15 LiUcina (Codalsia) tig- rlna. West Indies ... 25Tridacna (Hippopus) maculata, E. Indies. 20Pecten irradians Mass 10 Pecten maxlmus German Ocean 25$6.30 The Shells In this collection. In size, will range from one to five inches. They are of allcolors and from all parts of the world. At ordinary prices, for scientifically labeled shells, theysell
RM2CEG2CR–. Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens. t^rer fonncren Schale an Steige oon ©teinforallenanheftet; 0. arborea Chem. (0. parasitica Gm.,Baumaufter, ©todaufter), traubenförmig anSBurfletn unb im Sßaffer fteljenben ©tämmen berSWangle* unb anbrcr tropifd;er Säume, fer)r nol)Uf$meaenb; 0. cristata Lam. (£atjnenfamm;auftet), im 2?iittelmeer; 0. adriaticaLam. (^5fa^t-aufter oon beliebig), fe^r wofjtfa)medenb; 0. vir-gmiana. 0. canadensis unb 0. borealis Zam., anben norbamerifani|a)en lüften; 0. Hippopus Lam.OPferbefufj), grofc, bid, weniger wof)lfa)medenb,im Äanal,
RMA4FK2B–Horseshoe clam Hippopus hippopus mantle and siphon detail Namu atoll Marshall Islands N Pacific
![. The biology of marine animals. Marine animals; Physiology, Comparative. ASSOCIATIONS 615 genera are involved, Hippopus and Tridacna, of which the giant clam T. derasa sometimes attains a length of nearly one and a half metres. Immense numbers of zooxanthellae are present in these animals, and are housed chiefly in the inner lobes of the mantle-edges on the dorsal side of the body, but zooxanthellae also occur elsewhere in the connective tissue into which light can penetrate. The animals literally "farm" their algae, which synthesize starch and oil deposits. The zooxanthellae are co Stock Photo](https://c8.alamy.com/comp/RHJYM2/the-biology-of-marine-animals-marine-animals-physiology-comparative-associations-615-genera-are-involved-hippopus-and-tridacna-of-which-the-giant-clam-t-derasa-sometimes-attains-a-length-of-nearly-one-and-a-half-metres-immense-numbers-of-zooxanthellae-are-present-in-these-animals-and-are-housed-chiefly-in-the-inner-lobes-of-the-mantle-edges-on-the-dorsal-side-of-the-body-but-zooxanthellae-also-occur-elsewhere-in-the-connective-tissue-into-which-light-can-penetrate-the-animals-literally-quotfarmquot-their-algae-which-synthesize-starch-and-oil-deposits-the-zooxanthellae-are-co-RHJYM2.jpg ". The biology of marine animals. Marine animals; Physiology, Comparative. ASSOCIATIONS 615 genera are involved, Hippopus and Tridacna, of which the giant clam T. derasa sometimes attains a length of nearly one and a half metres. Immense numbers of zooxanthellae are present in these animals, and are housed chiefly in the inner lobes of the mantle-edges on the dorsal side of the body, but zooxanthellae also occur elsewhere in the connective tissue into which light can penetrate. The animals literally "farm" their algae, which synthesize starch and oil deposits. The zooxanthellae are co Stock Photo")
RMRHJYM2–. The biology of marine animals. Marine animals; Physiology, Comparative. ASSOCIATIONS 615 genera are involved, Hippopus and Tridacna, of which the giant clam T. derasa sometimes attains a length of nearly one and a half metres. Immense numbers of zooxanthellae are present in these animals, and are housed chiefly in the inner lobes of the mantle-edges on the dorsal side of the body, but zooxanthellae also occur elsewhere in the connective tissue into which light can penetrate. The animals literally "farm" their algae, which synthesize starch and oil deposits. The zooxanthellae are co
RMRH09M3–. Bulletin. Mycology; Fungi; Botany. BULL.de la soc MYC.de FRANCE T.VI.Pl.Vll.. Bresadola del. 1. GANODERMA FULVELLUM Bres. 2. FOMES HIPPOPUS Willd.n.sp. Lit.&iûv.Zippel Trente. 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.. Socie?te? mycologique de France. Epinal : Victor Collot
RMRHN9BG–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 230 PETER V. FANKBONER * f A4 *• -.. FIGURE 7. Unstained thin section of digestive gland tissue from Hippopus hippopus demon- strating sites of phosphomonoesterase II activity (points) during early stage of intracellular digestion of zooxanthella by amoebocyte lysosomes. Abbreviations used are: a, portion of amoebocyte; ab, accumulation body; chl, chloroplast.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illust
RMRHN9FF–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GIANT CLAMS: ZOOXANTHELLAE 223. FIGURE 1. In water photograph of one of the more diminutive species of tridacnid clams, Tridacna maxima taken adjacent to Chinimi Islet, Eniwetok Atoll, Marshall Islands. The clam lies byssally attached to coral incrusted limestone with its hypertrophied siphons (the whole of the fleshy portion in the figure) fully exposed to the sun's rays. MATERIALS AND METHODS Adult specimens of the tridacnid clams Hippopus hippopus, Tridacna gigas, T. maxima, and T. sqiiamosa (Rosewater, 1965), were collec
![. A contribution to American thalassography : Three cruises of the United States Coast and geodetic survey steamer "Blake", in the gulf of Mexico, in the Caribbean sea, and along the Atlantic coast of the United States, from 1877 to 1880. Blake (Steamer); Marine animals -- Atlantic Ocean; Marine sediments. Fig. 429. — Gleba hippopus. (Fewkes.) stage of Agalma having no nectocalyces, in which a similar circle of covering scales is found. A new species, A. formosa, from the Florida Keys, has been added to the medusae of the Gulf Stream. The close resemblance of the swimming-bells of on Stock Photo](https://c8.alamy.com/comp/RE84G0/a-contribution-to-american-thalassography-three-cruises-of-the-united-states-coast-and-geodetic-survey-steamer-quotblakequot-in-the-gulf-of-mexico-in-the-caribbean-sea-and-along-the-atlantic-coast-of-the-united-states-from-1877-to-1880-blake-steamer-marine-animals-atlantic-ocean-marine-sediments-fig-429-gleba-hippopus-fewkes-stage-of-agalma-having-no-nectocalyces-in-which-a-similar-circle-of-covering-scales-is-found-a-new-species-a-formosa-from-the-florida-keys-has-been-added-to-the-medusae-of-the-gulf-stream-the-close-resemblance-of-the-swimming-bells-of-on-RE84G0.jpg ". A contribution to American thalassography : Three cruises of the United States Coast and geodetic survey steamer "Blake", in the gulf of Mexico, in the Caribbean sea, and along the Atlantic coast of the United States, from 1877 to 1880. Blake (Steamer); Marine animals -- Atlantic Ocean; Marine sediments. Fig. 429. — Gleba hippopus. (Fewkes.) stage of Agalma having no nectocalyces, in which a similar circle of covering scales is found. A new species, A. formosa, from the Florida Keys, has been added to the medusae of the Gulf Stream. The close resemblance of the swimming-bells of on Stock Photo")
RMRE84G0–. A contribution to American thalassography : Three cruises of the United States Coast and geodetic survey steamer "Blake", in the gulf of Mexico, in the Caribbean sea, and along the Atlantic coast of the United States, from 1877 to 1880. Blake (Steamer); Marine animals -- Atlantic Ocean; Marine sediments. Fig. 429. — Gleba hippopus. (Fewkes.) stage of Agalma having no nectocalyces, in which a similar circle of covering scales is found. A new species, A. formosa, from the Florida Keys, has been added to the medusae of the Gulf Stream. The close resemblance of the swimming-bells of on
RMRGJEFH–. Bulletin of the British Museum (Natural History). 264 TAYLOR, KENNEDY AND HALL TRIDACNACEA (Plate 3, figs 5-8; text-fig. 9) This is a small superfamily closely related to the Cardiacea (Stasek, 1962); included genera are Tridacna and Hippopus. Four species have been examined structurally and mineralogically. The shell is wholly aragonitic. The shell is very thick, with t'o shell layers, an outer crossed-lamellar laj'cr and an inner complex crossed-lamellar layer which is bounded in extent by the trace of the pallial line. In the outer layer the first order lamels are large (Plate 3, fig. 6
RMRGFWRT–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. Fig. 42(>. — Gleba hippopus. •. (Fewkes.) stage of Agalma having no nectocalyces, in which a similar circle of covering scales is found. A new species, A. formosa, from the Florida Keys, has been added to the medusae of the Gulf Stream. The close resemblance of the swimming-bells of one genus of the floatless siphonophores to a horse's hoof suggested the name of hippopus to designate a wide-spread Mediterranean species (Gleba hippopus, Fig. 429) found in the Gulf Stream (Fewkes.;. Please note that these im
RMRJWPAN–. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 30 levels were observed to fluctuate less than one foot. At high tide all reefs and corals are flooded to depths of a few inches or more. Water levels in the lagoon never dropped below mean tide level. Sand deposits covered the floor of the lagoon while most elevated surfaces were covered with live coral. Lagoon coral communities were very healthy with only a few dead corals observed. Giant clam populations in the lagoon were huge, including the species Tridacna maxima, T. squamosa, and Hippopus hippopus. Desp
RMRMNENK–. Annals of Philosophy. . CA'RTiivu semisulcatiim. Testa transversa, ovata lutea rosea vel albida, costato-striata, subspinosa; latere antico conferte striate; postico producto, aperto, distauter costato; margiue dentato. long. 7-10 unc. C. bnUato similis. Card, crenatnm. Testa cordata, alba, umbonibus carinatis, costis 22 convexis, anticis niinoribus, lunula profundissima callosa intrusa. Arca irigona. Testa subcordata trigona turgida, angulata ; latere antico piano, long. 1 unc. peculiar for having the form of Hippopus maculatus. NuciiLA Montagui. Arca rostrata, Mont. Sup. t. 27, f. 7. Nuc.
![. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. sand SITE 6E coral heads Ocean (SE)- mdcroatolls rilled pavement. coral sand ripples table corals SITE 6F Tridacna & Hippopus sand ""coral head lm . beach ive sand dead beack rock sand corals coral. 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.. Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Scie Stock Photo](https://c8.alamy.com/comp/RJWNC5/atoll-research-bulletin-coral-reefs-and-islands-marine-biology-marine-sciences-sand-site-6e-coral-heads-ocean-se-mdcroatolls-rilled-pavement-coral-sand-ripples-table-corals-site-6f-tridacna-amp-hippopus-sand-quotquotcoral-head-lm-beach-ive-sand-dead-beack-rock-sand-corals-coral-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-smithsonian-institution-press-national-research-council-u-s-pacific-scie-RJWNC5.jpg ". Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. sand SITE 6E coral heads Ocean (SE)- mdcroatolls rilled pavement. coral sand ripples table corals SITE 6F Tridacna & Hippopus sand ""coral head lm . beach ive sand dead beack rock sand corals coral. 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.. Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Scie Stock Photo")
RMRJWNC5–. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. sand SITE 6E coral heads Ocean (SE)- mdcroatolls rilled pavement. coral sand ripples table corals SITE 6F Tridacna & Hippopus sand ""coral head lm . beach ive sand dead beack rock sand corals coral. 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.. Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Scie
![. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ANEMONE-DINOFLAGELLATE SYMBIOSIS SPECIFICITY 7M Table 1 Infectivity over time of different Symbiodinium isolmc on aposyrnbiotic Atptasia iint'iiionc-* Alaal strain (elude! Weeks follow inn inoculation Original source of isolate Control (none) CS156(C) HA3-5 (A) Hh2a(A) Tc2a(A) CS164 (B) Aiptasia FIZ (B) Mixture eit above Montipora verrucosa (coral) Free-living in subtidal sand Hippopus hippopus (tridacmd) Trittucna crocea (tridacmd) Aiptasia tagetes (anemone) Aiptasia sp. (anemone) All of above | day2 [ —] = no infection; [ Stock Photo](https://c8.alamy.com/comp/RHMDGT/the-biological-bulletin-biology-zoology-biology-marine-biology-anemone-dinoflagellate-symbiosis-specificity-7m-table-1-infectivity-over-time-of-different-symbiodinium-isolmc-on-aposyrnbiotic-atptasia-iintiiionc-alaal-strain-elude!-weeks-follow-inn-inoculation-original-source-of-isolate-control-none-cs156c-ha3-5-a-hh2aa-tc2aa-cs164-b-aiptasia-fiz-b-mixture-eit-above-montipora-verrucosa-coral-free-living-in-subtidal-sand-hippopus-hippopus-tridacmd-trittucna-crocea-tridacmd-aiptasia-tagetes-anemone-aiptasia-sp-anemone-all-of-above-day2-=-no-infection-RHMDGT.jpg ". The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ANEMONE-DINOFLAGELLATE SYMBIOSIS SPECIFICITY 7M Table 1 Infectivity over time of different Symbiodinium isolmc on aposyrnbiotic Atptasia iint'iiionc-* Alaal strain (elude! Weeks follow inn inoculation Original source of isolate Control (none) CS156(C) HA3-5 (A) Hh2a(A) Tc2a(A) CS164 (B) Aiptasia FIZ (B) Mixture eit above Montipora verrucosa (coral) Free-living in subtidal sand Hippopus hippopus (tridacmd) Trittucna crocea (tridacmd) Aiptasia tagetes (anemone) Aiptasia sp. (anemone) All of above | day2 [ —] = no infection; [ Stock Photo")
RMRHMDGT–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ANEMONE-DINOFLAGELLATE SYMBIOSIS SPECIFICITY 7M Table 1 Infectivity over time of different Symbiodinium isolmc on aposyrnbiotic Atptasia iint'iiionc-* Alaal strain (elude! Weeks follow inn inoculation Original source of isolate Control (none) CS156(C) HA3-5 (A) Hh2a(A) Tc2a(A) CS164 (B) Aiptasia FIZ (B) Mixture eit above Montipora verrucosa (coral) Free-living in subtidal sand Hippopus hippopus (tridacmd) Trittucna crocea (tridacmd) Aiptasia tagetes (anemone) Aiptasia sp. (anemone) All of above | day2 [ —] = no infection; [
RMRF0TE2–. A catalogue of the Portland Museum : lately the property of the Duchess Dowager of Portland deceased which will be sold by auction, by Mr. Skinner and Co. on Monday the 24th of April, 1786, and the thirty-seven following days ... Sundays, and the 5th of June ... excepted ... Zoological specimens; Art objects; Mollusks. 31 34 35 36 37 3S 39 40 41 42 43 44 45 46 47 48 49 50 51 Spdndylus gaderopus of Sxt Mediterranean', Ciiama hippopus, or Bear's Paw; Area pllofa, L. and Cardium Spinofum, S. Haliotis Iris, a new fpec'ies from A'^iu ZcalanJ, 2 fpeclmcns, one of them uncaatei Twenty fpecimens of
RMRF87NM–. A catalogue of the Portland Museum : lately the property of the Duchess Dowager of Portland deceased which will be sold by auction, by Mr. Skinner and Co. on Monday the 24th of April, 1786, and the thirty-seven following days ... Sundays, and the 5th of June ... excepted ... Zoological specimens; Art objects; Mollusks. 31 34 35 36 37 3S 39 40 41 42 43 44 45 46 47 48 49 50 51 Spdndylus gaderopus of Sxt Mediterranean', Ciiama hippopus, or Bear's Paw; Area pllofa, L. and Cardium Spinofum, S. Haliotis Iris, a new fpec'ies from A'^iu ZcalanJ, 2 fpeclmcns, one of them uncaatei Twenty fpecimens of
RMREB9C6–. The conchologist's text-book : embracing the arrangements of Lamarck and Linnæus, with a glossary of technical terms : to which is added a brief account of the Mollusca. Mollusks; Shells. ,w. I Angulated Gryphcea. 2 Long-spined Spondylus. 3 Edible Ostrea 4 Branched Plicatula. b Speckled Pecten. & Thorny Plagiostoma. 1 Glassy Lima. S Tvr- ton's Galeamma. 9 Spondylus-shaped Pedum. 10 Pearl-bearing Meleagrina. II English Avicula 12. White Malleus. 13 Saddle Perna. 14 Muscle-shaped Crenatula. b Huge Pinna. 16 Edible Myfiltis. 17 Discordant Modiola, 18 Spotted Hippopus. 19 0?'a? Etheria. 20
RMREB9MF–. The conchologist's text-book. Embracing the arrangements of Lamarck and Linnæus, with a glossary of technical terms. To which is added a brief account of the mollusca. Mollusks; Shells. XV. I Angulated Gryphcea. 2 Long-tpined Spondyltis. 3 Edible Ostrea 4 Plicatula. 5 Speckled Pecten. 6 TJiorny Plagiostoma. 7 G^toMj/ Ziwa. 8 Tur- ton's Oai«omma. 9 Spondylw-shaped Pedum. 10 Pearl-bearing Meleagrina. II ^ngr^MA ^vicwto 12 FTitte Malleut. 13 inna. 16 Edible MytUus. 17 Discordant Modiola. 18 ^po««d Hippopus. 19 Ovai Btheria. 20 Lazarus Chama. 21 (?ian6itju« Pisidium.. Please note that these imag
RMRNA06W–. Analytischer Leitfaden für den ersten wissenschaftlichen Unterricht in der Naturgeschichte. Animals. 8ig.4i9. (I/2) ÄaBäIbcrtt)on = 3lutmu=' fchel (ümo Waldensis). | a ®citcnanrict)t; : b 9nrirt)t öom Sctlogbanbc au8, um bic, I aud) bei nocf) jctst Itbtnbcn glu§mufd)eln j getnöbnlich abgeriebenen Sucfel beibtrfeitä Dom 6d)[oBbanbc 511 jtigtn. 5ig.418. (I/3) ©tflccftcr Vferbtfuft (Hippöpus niaculalus). a 3ufammengcflati)3t, »on SSucfeln nu9 gtfef)cn. b (Eine ber Älafipen Don ber Slu^cnfcite.. Sig.421. (i/i)Ä Unterbrpd)enc öcrj- tnufd^el (CardTum inter- ruptum). ÄlajJticn faft gleid)fcitig, mi
RMREB9DY–. The conchologist's text-book : embracing the arrangements of Lamarck and Linnaeus with a glossary of technical terms, to which is added a brief account of the mollusca. Shells; Mollusks. x^. I Angulated Grypho'a. 2 Long-spined Spondylus. .. jiu.i/tt Ostrea. 4 Branched Piicatukt. 5 Speckled Pectm. 6 Thorny Plagiostoma. 7 Glassy Lima. 8 Tur- ton's Gakomma. 9 Spondylus-shaped Pedum. 10 Pearl-bearing Meleagrina. II J^ng-ZwA ^mcM/a 12 White Malleus. 13 ^faddfe />erM.a. 14 Muscle-shaped Crenatula. 15 ^uire Pinna. 16 ^didfe MytUus. 17 Discordant Modiola. 18 Spotted Hippopus. 19 Ot>a^ Etheria
![. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PHYLOGENY OF CLAMS WITH ZOOXANTHELLAE 73 0.98 r Spisuk 1.000 L Tresus 0.870 1.000 solidissima nuttali 1.000 ^Vasticardium flavum —Fulvia mutica |- 1.000 JfHippopus hippopus 1.000 |1 1}IW ^H 1.0001 1.000 0.993 0.677 1 Hippopus porcellanus ! Tridacna gigas Tridacna derasa Tridacna crocea Tridacna maxima Tridacna squamosa 000 r Corculum cardissa 1 Fragum fragum UKI° Fragum unedo 0.1 s |" Placopecten magellanicus .000 L Chlamys islandica Figure 1. A phylogenetic tree of zooxanthellate and azooxanthellale clams, calculat Stock Photo](https://c8.alamy.com/comp/RHKNFW/the-biological-bulletin-biology-zoology-biology-marine-biology-phylogeny-of-clams-with-zooxanthellae-73-098-r-spisuk-1000-l-tresus-0870-1000-solidissima-nuttali-1000-vasticardium-flavum-fulvia-mutica-1000-jfhippopus-hippopus-1000-1-1iw-h-10001-1000-0993-0677-1-hippopus-porcellanus-!-tridacna-gigas-tridacna-derasa-tridacna-crocea-tridacna-maxima-tridacna-squamosa-000-r-corculum-cardissa-1-fragum-fragum-uki-fragum-unedo-01-s-quot-placopecten-magellanicus-000-l-chlamys-islandica-figure-1-a-phylogenetic-tree-of-zooxanthellate-and-azooxanthellale-clams-calculat-RHKNFW.jpg ". The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PHYLOGENY OF CLAMS WITH ZOOXANTHELLAE 73 0.98 r Spisuk 1.000 L Tresus 0.870 1.000 solidissima nuttali 1.000 ^Vasticardium flavum —Fulvia mutica |- 1.000 JfHippopus hippopus 1.000 |1 1}IW ^H 1.0001 1.000 0.993 0.677 1 Hippopus porcellanus ! Tridacna gigas Tridacna derasa Tridacna crocea Tridacna maxima Tridacna squamosa 000 r Corculum cardissa 1 Fragum fragum UKI° Fragum unedo 0.1 s |" Placopecten magellanicus .000 L Chlamys islandica Figure 1. A phylogenetic tree of zooxanthellate and azooxanthellale clams, calculat Stock Photo")
RMRHKNFW–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PHYLOGENY OF CLAMS WITH ZOOXANTHELLAE 73 0.98 r Spisuk 1.000 L Tresus 0.870 1.000 solidissima nuttali 1.000 ^Vasticardium flavum —Fulvia mutica |- 1.000 JfHippopus hippopus 1.000 |1 1}IW ^H 1.0001 1.000 0.993 0.677 1 Hippopus porcellanus ! Tridacna gigas Tridacna derasa Tridacna crocea Tridacna maxima Tridacna squamosa 000 r Corculum cardissa 1 Fragum fragum UKI° Fragum unedo 0.1 s |" Placopecten magellanicus .000 L Chlamys islandica Figure 1. A phylogenetic tree of zooxanthellate and azooxanthellale clams, calculat
RMRMTREE–. Annales du Musée d'histoire naturelle de Marseille, published aux frais de la ville ... - 48 - paraissent bien propres à une pareille expérience. Quant à VOstrca hippopus, elle deviendrait la source de revenus importants, si on la parquait et si on procédait, à mesure de la croissance, à l'enlèvement des cascals (tubes de serpules) dont les épaisses colonies recouvrent les coquilles d'huîtres et en augmentent le poids en pure perte. 111. — VIVIERS ET SALAISONS. 1° Viviers.— La plupart des pécheurs de Thau possèdent deux sortes de viviers dans lesquels ils mettent en réserve le produit de leu
![. Analytischer Leitfaden für den ersten wissenschaftlichen Unterricht in der Naturgeschichte. Animals. 174 9?atur9cfd)ic^tc beö 2;|)ierrei(i)6 (3oologit). §. 225. 58. 9ttcfcnmufd>cl (Tridacna gigas). Ciuer=eif5rmifl; 9li|)t)en (larf, mit aufgerit^tcten, lüie Jpobijicgel über cinanber liegcnbcn S[ättd)en; 3—6' unb 500 ^fiinb fd)ft)er. ®röfete8, mit einem S3l)JTuö an gclfcn befeftigteö ©d)alt^ier, 59. ©cficcfter ^fcrbcfu^ (Hippopus maculätus »ig. 418.)- äBeig; 9JiJ)t)cn mit fleinen <B<i)xpt)en unb purt)urrott)en glecfcn; 9ianb jadfig; 10"; Snbien. * 60. ^crl = glufmufrf)cl ob. glu Stock Photo](https://c8.alamy.com/comp/RNA073/analytischer-leitfaden-fr-den-ersten-wissenschaftlichen-unterricht-in-der-naturgeschichte-animals-174-9atur9cfdictc-be-2ierreii6-3oologit-225-58-9ttcfcnmufdgtcl-tridacna-gigas-ciuer=eif5rmifl-9liten-larf-mit-aufgerittcten-lie-jpobijicgel-ber-cinanber-liegcnbcn-s-ttden-36-unb-500-fiinb-fdfter-rfete8-mit-einem-s3ljtu-an-gclfcn-befeftigte-daltier-59-cficcfter-fcrbcfu-hippopus-macultus-ig-418-beig-9jijtcn-mit-fleinen-ltbltixpten-unb-purturrotten-glecfcn-9ianb-jadfig-10quot-snbien-60-crl-=-glufmufrfcl-ob-glu-RNA073.jpg ". Analytischer Leitfaden für den ersten wissenschaftlichen Unterricht in der Naturgeschichte. Animals. 174 9?atur9cfd)ic^tc beö 2;|)ierrei(i)6 (3oologit). §. 225. 58. 9ttcfcnmufd>cl (Tridacna gigas). Ciuer=eif5rmifl; 9li|)t)en (larf, mit aufgerit^tcten, lüie Jpobijicgel über cinanber liegcnbcn S[ättd)en; 3—6' unb 500 ^fiinb fd)ft)er. ®röfete8, mit einem S3l)JTuö an gclfcn befeftigteö ©d)alt^ier, 59. ©cficcfter ^fcrbcfu^ (Hippopus maculätus »ig. 418.)- äBeig; 9JiJ)t)cn mit fleinen <B<i)xpt)en unb purt)urrott)en glecfcn; 9ianb jadfig; 10"; Snbien. * 60. ^crl = glufmufrf)cl ob. glu Stock Photo")
RMRNA073–. Analytischer Leitfaden für den ersten wissenschaftlichen Unterricht in der Naturgeschichte. Animals. 174 9?atur9cfd)ic^tc beö 2;|)ierrei(i)6 (3oologit). §. 225. 58. 9ttcfcnmufd>cl (Tridacna gigas). Ciuer=eif5rmifl; 9li|)t)en (larf, mit aufgerit^tcten, lüie Jpobijicgel über cinanber liegcnbcn S[ättd)en; 3—6' unb 500 ^fiinb fd)ft)er. ®röfete8, mit einem S3l)JTuö an gclfcn befeftigteö ©d)alt^ier, 59. ©cficcfter ^fcrbcfu^ (Hippopus maculätus »ig. 418.)- äBeig; 9JiJ)t)cn mit fleinen <B<i)xpt)en unb purt)urrott)en glecfcn; 9ianb jadfig; 10"; Snbien. * 60. ^crl = glufmufrf)cl ob. glu
RMRGRX7A–. Bulletin de la Société des sciences naturelles de l'Ouest de la France. Natural history. R. ANTHONY. TRÃDACNE ET HIPPOPUS 103 les faits convenablement interprétés permettent de compren- dre le mécanisme de constitution du type morphologique de la Tridacne et de l'Hippopus. En se plaçant au seul point de vue du volume relatif des muscles adducteurs, on peut diviser les Mollusques acéphales. Fig. 1. â Coupe sagittale (intervalvaire) de Mytilus edulis L. (à gauche), de Tridacna elongata Lmck. (à droite). âc. charnière. â m. a. muscle adducteur antérieur. â m. p. muscle adducteur posté
RMRGNG4A–. Bulletin de la Société des sciences naturelles de l'Ouest de la France. Natural history -- France. R. ANTHONY, TRIDACNE ET HIPPOPUS 103 les faits convenablement interprétés pei'mettent de compren- dre le mécanisme de constitution du type morphologique de la Tridacne et de l'Hippopus. En se plaçant au seul point de vue du volume relatif des muscles adducteurs, on peut diviser les Mollusques acéphales. Fig. 1. â Coupe sagittale (iiUervalvaire) de Mytilns edulis L. (à gauchei, de Tridacna elongata Lmck. (à droite). â c. charnière. â m. a. muscle adducteur antérieur. â m. p. muscle addu
RMRGRX76–. Bulletin de la Société des sciences naturelles de l'Ouest de la France. Natural history. R. ANTHONY. TRIDACNE ET HIPPOPUS 107 C'est à mon sens parce que, n'étant pas Lamarckien, il man- quait de fil conducteur. La loi des connexions qu'il invoquait l'a mené aussi loin qu'elle pouvait le faire ; mais ce n'était point un guide suffisant pour le faire parvenir jusqu'à la solu- tion complète d'un problème dont il lui était même difficile de comprendre le véritable sens.. Fig. 3. â Schéma destiné à faire comprendre le passage morphologique du type isomyaire i [Tapes, par exemple) au t
RMRGNNW8–. Bulletin de la Société des sciences naturelles de l'Ouest de la France. Natural history -- France. R. ANTHONY. â THIDACNE ET HIPPOPUS 107 C'est à mon sens parce que, n'étant pas Lamarckien, il man- quait de fil conducteur. La loi des connexions qu'il invoquait l'a mené aussi loin qu'elle pouvait le faire ; mais ce n'était point un guide suflisant pour le faire parvenir jusqu'à la solu- tion complète d'un problème dont il lui était même difficile de comprendre le véritable sens.. F'ig. 3. â Schéma destiné à faire comprendre le passage morphologique du type isorayaire i (Tapes, par
RMRCD2MW–. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. SYSTEMATIC AND BIOLOGICAL ACCOUNT 75 We are now in a position to see how closely alike are the larvae of two species of Prayidae and of three species of Hippopodiidae, for Chun (18880, b, 1913) had already figured three larvae of Hippo- podius hippopus. In all except Rosacea cymbiformis there is a deep, pocket-shaped hydroecium, and in none is there an extension of the somatocyst distad to the pedicular canal of the nectosac. All, except Vogtia glabra, where they are missing, have simple straigh
RMRCD2FH–. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 138 . DISCOVERY REPORTS are commonly opaque. At Villefranche I have observed that the nectophores of undisturbed specimens of H. hippopus are quite transparent, but that when disturbed they immediately become opaque. After a rest they once more become transparent. As far as is known no research has been carried out upon this phenomenon. But I have recently found a description of this same phenomenon by Chun (1888 a) which he observed whilst working in the Canaries. He said that the turbidity occ
RMRCD2KB–. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. SYSTEMATIC AND BIOLOGICAL ACCOUNT 91 In R. plicata the right-hand longitudinal hydroecial canal of the bract is relatively much longer than the left. The caducous, larval nectophores grow to a diameter of at least 12 mm. Some of the first known larvae of this species, together with at least one eudoxid, were taken by ' Research' in the Bay of Biscay in 1900; but all were recorded as larvae of Hippopodius hippopus. In the larval nectophores the lateral radial canals are somewhat sigmoid in shape
![. Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena. 140 Die Fauna der Solnhofener Plattenkalke. I4O ableiten kann. Dazwischen lebte eine reiche Fauna dickschaliger Schnecken und Muscheln, unter denen die Gattung Diceras mit ihren langen, widderhornartigen Wirbeln so häufig ist, daß man die ganze Ablagerung als „Diceraskalk" bezeichnet. Grobe dickschalige Austern, Pecten, Hinnites, Lima, Pinna, Pachymytilus, Trichites, Pachyrisma und andere Formen lassen auf den ersten Blick erkennen, daß sie wie die recenten Tridacna, Hippopus und Chama in der bewegten Brandungsz Stock Photo](https://c8.alamy.com/comp/RD1H8J/denkschriften-der-medicinisch-naturwissenschaftlichen-gesellschaft-zu-jena-140-die-fauna-der-solnhofener-plattenkalke-i4o-ableiten-kann-dazwischen-lebte-eine-reiche-fauna-dickschaliger-schnecken-und-muscheln-unter-denen-die-gattung-diceras-mit-ihren-langen-widderhornartigen-wirbeln-so-hufig-ist-da-man-die-ganze-ablagerung-als-diceraskalkquot-bezeichnet-grobe-dickschalige-austern-pecten-hinnites-lima-pinna-pachymytilus-trichites-pachyrisma-und-andere-formen-lassen-auf-den-ersten-blick-erkennen-da-sie-wie-die-recenten-tridacna-hippopus-und-chama-in-der-bewegten-brandungsz-RD1H8J.jpg ". Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena. 140 Die Fauna der Solnhofener Plattenkalke. I4O ableiten kann. Dazwischen lebte eine reiche Fauna dickschaliger Schnecken und Muscheln, unter denen die Gattung Diceras mit ihren langen, widderhornartigen Wirbeln so häufig ist, daß man die ganze Ablagerung als „Diceraskalk" bezeichnet. Grobe dickschalige Austern, Pecten, Hinnites, Lima, Pinna, Pachymytilus, Trichites, Pachyrisma und andere Formen lassen auf den ersten Blick erkennen, daß sie wie die recenten Tridacna, Hippopus und Chama in der bewegten Brandungsz Stock Photo")
RMRD1H8J–. Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena. 140 Die Fauna der Solnhofener Plattenkalke. I4O ableiten kann. Dazwischen lebte eine reiche Fauna dickschaliger Schnecken und Muscheln, unter denen die Gattung Diceras mit ihren langen, widderhornartigen Wirbeln so häufig ist, daß man die ganze Ablagerung als „Diceraskalk" bezeichnet. Grobe dickschalige Austern, Pecten, Hinnites, Lima, Pinna, Pachymytilus, Trichites, Pachyrisma und andere Formen lassen auf den ersten Blick erkennen, daß sie wie die recenten Tridacna, Hippopus und Chama in der bewegten Brandungsz
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