. Conchologia cestrica. The molluscous animals and their shells, of Chester county, Pa. Mollusks. Lingual Dentition of M. concava. Fig, 42. [B. & •7n 10 of itf. con cava. [B. & Fig. 41. Station, under stones, logs, etc. Chester County; not 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