. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 3^ CONCHOLOGIA CESTRICA. Z. Icpvif/fittis [B. & B.] Fig, 47. Z. laevigatus, Pfr. Helix laevigata, Pfr., Mon. Hel. Viv., I., 1848. Shell globosely depressed, thin, green- ish horn color; whorls 5, closely striate above, smooth, and shining, beneath; last whorl rapidly expanding ; aperture rounded-lunular; lip simple, much thick- ened, within the base, and slightly re- flected, around a moderate umbilicus. H. 9, W. 18, mill. Station, mountains. Sunbury, Penn- Z. inoruatus [B. & B.
. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. 3^ CONCHOLOGIA CESTRICA. Z. Icpvif/fittis [B. & B.] Fig, 47. Z. laevigatus, Pfr. Helix laevigata, Pfr., Mon. Hel. Viv., I., 1848. Shell globosely depressed, thin, green- ish horn color; whorls 5, closely striate above, smooth, and shining, beneath; last whorl rapidly expanding ; aperture rounded-lunular; lip simple, much thick- ened, within the base, and slightly re- flected, around a moderate umbilicus. H. 9, W. 18, mill. Station, mountains. Sunbury, Penn- Z. inoruatus [B. & B.] Fig. 48. Z. inornatus, Say. Helix inornata, Say, Jour. Acad. Phila. F. S., H., 1821. Shell much depressed, smooth, shining, pale yellow; whorls 5, flattened above; aperture transverse; lip thin, acute, with an internal, white, deposit; umbilicus small, deep. H. 6, W. 16, mill. Station, in woods. Lancaster County, 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
