A Manual of the Mollusca Being a Treatise on Recent and Fossil Shells |
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adductor Africa ammonites Animal aperture apex arms Australia beak bivalves Brachiopoda branchial Britain Buccinum Bulimus canal Cardium cavity China Chiton coast columella D'Orbigny Devonian Distribution dorsal valve dredge elongated Eocene epidermis Etymology Europe external FAMILY fathoms foot Forbes Fossil France fresh-water front gasteropods genera genus gills Gray grooved Helix hinge horny India Islands Lamarck land-snails layer left valve ligament lingual teeth Littorina lobes mantle margin Mediterranean Miocene mollusca muscular impressions Natica nautilus North America notched nucleus oblique oblong Oolite operculum orifice outer lip oval Pacific pallial line palpi Pecten peristome Philippines phragmocone plates Pliocene posterior province Pupa Red Sea right valve rocks rounded Scalaria Shell side Silurian sinus siphons siphuncle South species specimens spiral spire strata striated Sub-genera Sub-genus Succinea Synonyms tentacles Tertiary thick thin tooth Trochus truncated Type umbones uncini ventral valve West Indies whorls Zealand