Identifier: b20416039_001 (find matches)
Title: On the anatomy of vertebrates (electronic resource)
Year: 1866 (1860s)
Authors: Owen, Richard, 1804-1892
Subjects: Anatomy, Comparative Vertebrates Fishes Reptiles Mammals Birds
Publisher: London : Longmans, Green
Contributing Library: Wellcome Library
Digitizing Sponsor: Wellcome Library

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Abdominal viscera of a Lizard, ccxxxv. In the stomach of a Crocodilus acutus, from 1 ccxxxvi. vol. ii. p. 357. 2 xx. torn. i. p. 146, preps, nos. 514-516. 3 xx. vol. i. p. 146, prep. no. 518 A.Jamaica, Hunter found the whole of the feathers of a bird, with a few of the bones,which had lost all their earth, exactly similar to a bone which has been steeped in anacid....There were stones in the stomach of considerable size, larger, e. g. than theend of a mans thumb. ccxxxvi. vol. ii. p. 337. Dr. Jones (ccxlv. p. 94) found inthe stomach of an Alligator < the bones, teeth, hoofs, and hair of a pig; the flesh hadbeen entirely digested. ALIMENTARY CANAL OF REPTILES. 443 Crocodilia again offer the chief exception to Reptiles in general;in these the mesogaster, fig. 301, h, is directly and broadly con-tinued into the mesentery, as this is into a mesocolon; theyare nominal distinctions of the same simple duplicature of theperitoneal membrane. In the Crocodile the intestine, after 302
Text Appearing After Image:
Viscera of the Female Tortoise (Emys europcea) seen from behind; the lungs have been removed. XXXVIII. forming the duodenal loops, passes back to cross the spine to theleft, in close connection thereto: and, descending, again becomesloose, and defines a root or beginning of a distinct 6mesentery;in no Reptile is there a separate mesocolon. Thus, it is onlyin Crocodilia that a i duodenal portion of the intestine can be 444 ANATOMY OF VEETEBEATES. distinctly defined; in other Reptiles it is indicated by its relationto the pancreas and to the ducts of this gland and the liver, as ate, f, fig. 301 (Lacerta), fig. 306, c, d(Bana), and fig. 305 ( Chelone).The large intestine is definitely marked off in all Reptiles, but isshort and, in most, simple, straight, and without caecal productionat its beginning. In no Reptile is the intestine so short and straight, or solong and convoluted, as in certain Fishes; as a general rule,it is shorter in proportion to the trunk than in warm-bloodedVertebr

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