Manual of Conchology, Vol. 7: Structural and Systematic; With Illustrations of the Species (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Manual of Conchology, Vol. 7: Structural and Systematic; With Illustrations of the Species

Shell long, solid, narrow, many-whorled, whorls flattened, suture superficial; the aperture small, notched in front, columella Without plaits. Operculum horny, annular, with apical nucleus.

Animal having the foot rounded in front, elongated behind; head rather large, with short, small tentacles furnished with eyes at their tips; between the tentacles extends anteriorly a rather long cylindrical trunk. Teeth subulate, arcuate, in two lateral rows pi. 12, fig. 40.

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