. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. Shell, small, sub-ovate, thin, smooth, perforate; spire short; aperture broad-ovate; peristome continuous. Animal, foot short, broad, expanded, and rounded, behind, auricled in front; rostrum short; tentacles cylindrical, blunt; verge bifid, with a globular base; opercle thin, sub-spiral. A. limosa, Say. Paludina limosa, Say, Tour. Acad. -*• ?""o*"- •^ ' -^ ' ' [W. G. B.] 18 17. Pig. 165. Shell, conic, sub - umbilicate, dark horn color; epidermis wrinkled; aperture ovate


. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. Shell, small, sub-ovate, thin, smooth, perforate; spire short; aperture broad-ovate; peristome continuous. Animal, foot short, broad, expanded, and rounded, behind, auricled in front; rostrum short; tentacles cylindrical, blunt; verge bifid, with a globular base; opercle thin, sub-spiral. A. limosa, Say. Paludina limosa, Say, Tour. Acad. -*• ?""o*"- •^ ' -^ ' ' [W. G. B.] 18 17. Pig. 165. Shell, conic, sub - umbilicate, dark horn color; epidermis wrinkled; aperture ovate- orbicular; suture impressed. H. 3, W. 2, 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