. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 34 CONCHOLOGIA CESTRICA. plate, slightly arcuate; anterior face, with broad ribs, denticulating each margin. H. ^j4-4y2, W. 7-10, mill. Ungual Dentition of S. inonodon, — [ Fig. Station, under decayed bark and stones. Chester County; rare. S. hirsuta, Say. Helix hirsuta, Say, Jour. Phil. Acad. F. S., I., 1817. Shell sub-globose, pale brown, with sharp, rigid, hairs, „ ,. , arranged in oblique lines; whorls K; aperture |B. & very narrow, almost closed, by an elongated. Fig. 35.
. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 34 CONCHOLOGIA CESTRICA. plate, slightly arcuate; anterior face, with broad ribs, denticulating each margin. H. ^j4-4y2, W. 7-10, mill. Ungual Dentition of S. inonodon, — [ Fig. Station, under decayed bark and stones. Chester County; rare. S. hirsuta, Say. Helix hirsuta, Say, Jour. Phil. Acad. F. S., I., 1817. Shell sub-globose, pale brown, with sharp, rigid, hairs, „ ,. , arranged in oblique lines; whorls K; aperture |B. & very narrow, almost closed, by an elongated. Fig. 35. ^^ lamelliform, tooth, on the pillar lip, reaching from the centre of the base to within the junction of the lips, above, and covering the umbilicus; outer lip narrowly reflected, grooved, with a notch near the middle of its inner margin; base very convex. H. 4, W. 6, mill. Station, under loose bark of logs. Chester County; abundant. Obs. — In some localities, it nearly doubles the di- mensions here given. Sub-genus ANGUISPIRA, Morse, 1864. Shell heavy, large, depressed-turbinate, solid, costate- striatc,banded with colored stripes; umbilicus moderate; aperture simple, without 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
