. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. Shell, thin, fragile, oblong-ovate, ventricose; epider- mis olive-brown, rayed with green ; hinge margin ele- vated ; beaks at the anterior third of the length; nacre bluish-white. H. , W. 5, T. 2, inches. Station, in all the larger streams, especially in mill- dams. Chester County; abundant. A. implicata, Say, New Harm. Dis., II., 1829. A. ittt)>licnta. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - co
. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. Shell, thin, fragile, oblong-ovate, ventricose; epider- mis olive-brown, rayed with green ; hinge margin ele- vated ; beaks at the anterior third of the length; nacre bluish-white. H. , W. 5, T. 2, inches. Station, in all the larger streams, especially in mill- dams. Chester County; abundant. A. implicata, Say, New Harm. Dis., II., 1829. A. ittt)>licnta. Fig. 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
