The Mollusca of the Chicago Area By Frank Collins Baker volume 2
The Mollusca of the Chicago Area By Frank Collins Baker volume 2
Frank Collins Baker
The book The Mollusca of the Chicago Area By Frank Collins Baker volume 2 was written by author Frank Collins Baker Here you can read free online of The Mollusca of the Chicago Area By Frank Collins Baker volume 2 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Mollusca of the Chicago Area By Frank Collins Baker volume 2 a good or bad book?
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Encycl. , ed. 1, pi. Ii, fig. 3, 1816. Limncea cornea VALENCIENNES, Recueil d'Observ. Zool. , etc. , Vol. II, p. 251, 1833. Limncea sericata ZIEGLER, Rossmassler Iconog. , Vol. I, p. 98, 1737. LiiHH&a intertexta CURRIER, MSS. , vide Bryant Walker, in letter. Shell: Rather solid, ovate, inflated; color light horn to blackish; surface dull to shining, lines of growth numerous, fine, crowded, wavy, crossed by numerous impressed spiral lines; apex small, rounded, chestnut colored; whorls five, roun...ded, subinflated, the last large and somewhat inflated; spire sharp to obtuse, conic; sutures impressed; aperture roundly ovate, large, from half to three-fourths the length of the en- tire shell, rounded below; somewhat narrowed above; peris- tome thin, sharp, thickened by a light, whitish callus just within the edge; columella oblique, with a heavy plait across the mid- dle; the lower part of the columella has a flexure caused by the heavy plait; the lower part of the peristome and the whole of the columella is sometimes covered by a heavy coating of white, testaceous material, which is reflected over the umbili- cus, completely closing it.
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