A treatise on malacology; or, Shells and shell fish . Sow. Gen. f. f. 1. spinosa. En. M. 421. 5-crumena. lb. SuB-FAM. 2. large, ventricose, generally smooth ; spire very. * This is the only character by which this group, as a genus, can be dis-tinguished; and this is exceptionable, because there are some species, {fig. Q^-), which have the outer lip thickened, and are with- 298 SHELLS AND SHELL-FISH. PART II. short; the base truncate and emarginate, or with ashort recurved channel; inner lip toothed or plaited.* Harpa Lam. Var
A treatise on malacology; or, Shells and shell fish . Sow. Gen. f. f. 1. spinosa. En. M. 421. 5-crumena. lb. SuB-FAM. 2. large, ventricose, generally smooth ; spire very. * This is the only character by which this group, as a genus, can be dis-tinguished; and this is exceptionable, because there are some species, {fig. Q^-), which have the outer lip thickened, and are with- 298 SHELLS AND SHELL-FISH. PART II. short; the base truncate and emarginate, or with ashort recurved channel; inner lip toothed or plaited.* Harpa Lam. Varices numerous and regular^ forminglongitudinal ribs, coronated near the suture ; apertureand lips highly polished ; base truncate {fig. Q5. b^c).muhicostata. Sow. Gen. crenata Sw. Bligh, Cat. CypRiECASsis Stuclibury. Shell oblong, oval, ventri-cose, without varices; spire very small; aperturecypraeiform ; outer lip thickened, convex, and ad-vancing on the spire ; inner margin regularly toothed;inner lip thickened, convex, and spreading on thebody-whorl, without being detached ; pillar angu-lated internally, and crossed by uniformly slenderplaits ; canal very short, reposing on the body-whorl;aperture very
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectmollusks, bookyear184
