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Egg-capsules of Purpura lapillus. Egg-capsules of Buccinum undatum; Egg-case of Polynices heros
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Murex tarentinus.
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Local distribution of the gastropod mollusk Tritia trivittata. This species was recorded from 353 stations out of the total of 417 comprised within the limits of the map. It has thus the most general distribution of any species of animal dredged within these waters. The circle around the star, here and elsewhere among the mollusks, denotes the known occurrence of living specimens. Where the circle is wanting, either dead shells only were present or the point is not indicated in the records. The symbol has, however, been employed only in the case of shell-bearing animals
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Marginella apicina.
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Olivella biplicata.
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Latirus albus, Jeffereys.
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Purpura lapillus.
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Monstrosities of Neptunea antigua L, and Buccinum undatum L., with a greatly produced spire.
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Portion of the radula of Imbricaria marmorata Swains.
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Fasciolaria gigantea.
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Oliva literata.
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19 Specimens of Purpura lapillus L., Great Britain, illustrating variation.
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Fasciolaria tulipa.
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Dictyota: Thalle encroute le plus souvent par le calcaire, qui lui donne une couleur gres vert, rampant ou dresse, foliace ou lineaire, dichotome ou dechire irregulierement, touffes de poils repandus a la surface du thalle, contenant les spores st disposes en zones concentriques.
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Harpa imperialis (Lamarck).
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Conus imperialis (Linn.).
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Purpura lapullus, younger.
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Astyris lunata.
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Siphonalia kelletti.
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Tooth from the radula of Conus iperialis L., S. Pacific, showing barb and poison duct.
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Columbella mereatoria.
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Fulgur canaliculata.
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Conus ammiralis (Linn.).
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Young Drill (Thais Haemastoma var. Floridana).