The Animal Kingdom Arranged in Conformity With Its Organization
The book The Animal Kingdom Arranged in Conformity With Its Organization was written by author Georges Cuvier Here you can read free online of The Animal Kingdom Arranged in Conformity With Its Organization book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Animal Kingdom Arranged in Conformity With Its Organization a good or bad book?
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The abdominal sac which con- tains the viscera is on this plate, the foot beneath, and the head and branchiae forwards. The latter consists of a range of long- filaments attached under the anterior margin of the branchial cavity. The eyes are at the external base of two conical tentacula. The genus PILEOLUS, Sowerby, Appears to consist of Crepidulae in which the transverse plate occupies half the aperture; their shell, however, is more like that of a Patella. They are only found fossil. NAVICEL...LA, Lam. The shell resembles a Crepidula, except that the summitis symmetrical and laid on the posterior margin, and that the horizontal plate is less salient. The animal is also provided with an additional, irregularly shaped, testaceous plate, horizontally connected with the superior surface of the muscular disk of its foot, and covered by the abdominal sac, which it partially supports. It is probably analogous to an operculum, but does not exercise its functions, being in a measure situated internally.
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