. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. CONCHOLOGIA CESTRICA. 57 Shell whitish, cylindro-conic; whorls 5 ; lip thick- ened, subreflected, white, its extremities J^-cont'-acta. ' [r>. & united ; aperture triangular, funnel-shaped, pig. 105. with four teeth — one very large on the col- umella, a small one on the margin of the outer lip, and two larger ones, deep in the narrow throat. H. 2^, W. i, mill. Station, with the preceding. Chester County; L. corticaria, Say. Pupa corticaria, Say, Nich. Encyc, Amer. Ed., 1817.
. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. CONCHOLOGIA CESTRICA. 57 Shell whitish, cylindro-conic; whorls 5 ; lip thick- ened, subreflected, white, its extremities J^-cont'-acta. ' [r>. & united ; aperture triangular, funnel-shaped, pig. 105. with four teeth — one very large on the col- umella, a small one on the margin of the outer lip, and two larger ones, deep in the narrow throat. H. 2^, W. i, mill. Station, with the preceding. Chester County; L. corticaria, Say. Pupa corticaria, Say, Nich. Encyc, Amer. Ed., 1817. Shell cylindrical, obtuse, shining, whitish ; x. cor«c«w«. whorls 5; aperture lateral, sub-orbicular; lip reflected; a tooth on the pillar lip, and an internal tubercle, near the very small umbilicus. H. 2}4, W. i, mill. Station, under the loose bark of trees, near the earth. New Garden, and near West Chester, Chester County ; rare. Genus VERTIGO, Muller, 1774. Shell rimate, ovate ; apex obtuse; whorls 5-6, round- ed ; aperture semi-oval, with 4-7 folds; peristome not much expanded ; lip white. Animal with lappets on each side of the head; inferior tentacles wanting. ,V. ovata, Say. Vertigo ovata, Say, Jour. Acad. Phila. F. S., II., 1822. Shell ovate-conic, ventricose, dark-amber colored ; whorls 5, the last much inflated, upper ones sub-acute; teeth six — two on the transverse lip, two on the colu-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hartman, William Dell, 1817-1899; Michener, Ezra, 1794-1887. Philadelphia, Claxton, Remsen & Haffelfinger
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmollusks, bookyear187
