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Onthe Testaceous Mollusca in general the primary Divisions and their
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aberrant Achatina affinity Analogical Characters Analogies angulated animal Anodon aperture apex arrangement base bivalves body-whorl bosses branchia Branchiopoda Bulimus canal cardinal teeth channel Chem Chiton circle Columbella conchologists connected convex crenated Cuvier Cymbiola depressed dilated distinct Dithyra divisions elevated flattened fossil Gasteropoda gastropods genera genus groove Guilding Harpula hinge margin Hyria inner lip internal Iridina Lamarck lateral teeth lengthened ligament Linn lip thickened lip thin lobes malacology mantle Mart Melania Meth Murex Mysca nearly notch obsolete obtuse operculum outer lip oval papillary perlaceous phytophagous pillar placed plaits posterior Pupa racters remarkable represent resemblance Scalaria Scaphella shape shell side sinus siphon slightly smooth species spines spire striated Strombus Sub-fam sub-family sub-genera sub-genus tentacula Testacea testaceous thick tooth transverse tribe Trochida Trochus truncate tubercles turbinate typical umbilicus umbones Unio valves ventricose volutes Volutida Volutilithes whole Zool Zoophaga