A treatise on malacology; or, Shells and shell fish . the aperture; outer lip dilated into finger-like pro-cesses ; base produced, compressed, with a slendergrooved channel in the middle, but no distinct lobe,A. pes-pelicani. Mart, 85. f. 848—850. Pteroceras Lafn. (fig. JJ.) Spireshort; outer lip considerably di-lated, ascending and attached to thespire, in general divided into linearprocesses; basal lobe inflexed,toothed; channel long. P. truncatus. Chem. latissimus Sw. Mart. 83. 5*?^;.Chem. 157. , 3 pl. 158. , .^lO
A treatise on malacology; or, Shells and shell fish . the aperture; outer lip dilated into finger-like pro-cesses ; base produced, compressed, with a slendergrooved channel in the middle, but no distinct lobe,A. pes-pelicani. Mart, 85. f. 848—850. Pteroceras Lafn. (fig. JJ.) Spireshort; outer lip considerably di-lated, ascending and attached to thespire, in general divided into linearprocesses; basal lobe inflexed,toothed; channel long. P. truncatus. Chem. latissimus Sw. Mart. 83. 5*?^;.Chem. 157. , 3 pl. 158. , .^lO SHELLS AND SHELL-FISH. PART II. Strombus Linn. (^fig. 76. b) Outer lip entire; the mar-gin not inflected, with a deep sinus near the base, andthe upper part not ascending to the top of the spire;basal lobe rarely inflexed, and never toothed. tricornis. En. Meth. 401. f. Mart. f. 841, Chem. 195. Sw. Bligh, Mart. 80. f. lb. 81. f. 829. Pacificus Sw. Chem. f. 1485,I486. Ex. Conch, pi. 17. melanostomus Sw. lb. lb. pi. 17. Auris-Dianae. Mart. f. 838-9. Lamarckii. Gray ? Strombidea Sw. Outer lip angulated, but not dilated,or detached from the preceding whorl; upper sinusobsolete, or entirely wanting; the lower distinct. urceus. Mart. 78. f. 803. tridentata. Chem. f. 1503. plicata. En. M. 408. f. 2. erythrostoma. lb. f. 1874. mutabilis. Mart. 78. f. 807. dubia Sw. P. RosTELLARiA Lam. [fig. 76. c, d, e.) An ascendingsiphon, formed by a groove thickened on each side,which extends upwards on the spire
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectmollusks, bookyear184
