American Conchology: Or, Descriptions of the Shells of North America |
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Acad acute angle angulated animal Anodonta anteriorly aperture arquated bands Barnes basal margin base beaks bivalve Blainville body whorl branchial cavity byssus C.Tiebout cardinal teeth cavity cicatrix coast colour columella compressed Conch conchologists convex costæ DESCRIPTION destitute dilated disk distinct distinguished dorsal edge elevated lines elongated epidermis exterior Ferussac fosset fossil species front view genera genus groove Helix hinge margin impressed line inhabitant interior Journ labrum Lamarck lateral teeth left valve ligament LIMNEUS Linné longitudinal lunule mantle middle muscular impressions nearly numerous oblique oblong OBSERVATIONS obsolete obtuse operculum oval pale PALUDINA PLATE posterior margin racters rectilinear REFERENCE resembles ribs right valve rostrated rounded SCALARIA shell Shell transversely side slightly Sowerby SPECIFIC CHARACTER specimens spire Stephen Elliott striæ striated subovate surface suture SYNONYM tentacula thick tooth truncated umbilicus umbo umbonial slope undulated UNIO UNIV valve volutions whitish wrinkled yellowish