Cerithidium perparvulum (Watson, 1886) |
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Indian Ocean to W. Pacific, Red Sea, Bitter lakes and eastern Mediterranean. Grazer in the infralittoral, on soft bottoms. Planktotrophic. Original taxon: Bittium perparvulum. « Very small, obovate to broadly elongate, and conical, pointed, pale chestnut to white, reticulated, with a small conical tip, convex whorls, an impressed suture, a short rounded and slightly conical base, a small oval mouth.… » – R. B. Watson: “Report on the Scaphopoda and Gasteropoda collected by H.M.S. Challenger during the Years 1873-1876”, Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76, Zoology part XLII, London 1886, p.554. |
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« …Longitudinals — there are on the last whorl about 14 rather feebly raised ribs, which are strongest at the suture and die out on the base; these do not appear on the firts two regular whorls. Spirals — there are on the last whorl about eight slightly tubercled threads, of which the third faintly angulates the periphery, and the last is near the pillar » – Ibid. Columellar area usually brownish. 4m deep, at the foot of the citadel, south of the harbour, Methóni, Messinia, Peloponnese, SW. Greece. 3,8mm. |
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