Conchologia Cestrica the Molluscous Animals And Their Shells of Chester County
Conchologia Cestrica the Molluscous Animals And Their Shells of Chester County
William Dell Hartman
The book Conchologia Cestrica the Molluscous Animals And Their Shells of Chester County was written by author William Dell Hartman Here you can read free online of Conchologia Cestrica the Molluscous Animals And Their Shells of Chester County book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Conchologia Cestrica the Molluscous Animals And Their Shells of Chester County a good or bad book?
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Pupa exigua, Say, Jour. Acad. Phila. F. S. , II. , 1822. CONCHOLOGIA CESTRICA. 6l Shell very small, cylindrical, tapering at both ends, white, shining; whorls 5-6, very oblique; aperture oblique, oval, with a plait, on the c ' columella, and a slight one near to the open umbilicus; lip thick, reflected, and flattened; lingual membrane with the rows of teeth slightly bent; buccal plate plain, slightly arched. H. I^, W. ^, mill. Lingual Dentition of C. Exiguium. [Morse. ] Fig, 115, Station, among... chips, moss, etc. , almost in the water. New Garden, Chester County ; frequent. Family LIMNAEID^. Shell variable, thin, horn color, usually with a slight fold on the columella ; lip simple, acute. Animal, muzzle short, broad, dilated ; tentacles con- tractile, flattened, subulate; eyes at their inner base; respiratory orifice on the right side. Station, fresh water ; rising to the surface to breathe. OBS. The Limnaeidce are generally sluggish animals; often preferring stagnant pools to clear running streams.
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