. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. Diagram of the anatomy of the Tadpole. adapted, by its length and complexity, for the assunUation of the decaying vegetable matters which chiefly constitute its food. In the conversion of this digestive apparatus into that of the purely carnivorous Frog, the horny cutaneous beak is changed into a wide mouth formed by well-ossified jaws, the lower one armed witli sharp teeth. The branchial pharynx is contracted and closed at the sides, except where it communicates with the ears. The a;sopha- gus and stomach are elong- ate
. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. Diagram of the anatomy of the Tadpole. adapted, by its length and complexity, for the assunUation of the decaying vegetable matters which chiefly constitute its food. In the conversion of this digestive apparatus into that of the purely carnivorous Frog, the horny cutaneous beak is changed into a wide mouth formed by well-ossified jaws, the lower one armed witli sharp teeth. The branchial pharynx is contracted and closed at the sides, except where it communicates with the ears. The a;sopha- gus and stomach are elong- ated ; the intestine is marvel- lously shortened ; the rectum contracts, and is found to open, after the absorption of the tail and cutaneous anal fold, just in front of the symphysis pubis, now com- pleted by the developement of the hind limlis. Whilst the heart, as a bent tube, fig. 434,/", sends ofi:" the branchial arteries from its fore part, it is connected behind with ves- sels ramifying on the vitel- llcle, ib., b: a portion of this is soon seen to be marked off from the rest, as the basis of the future liver and TuJpole of To;k1, inapn. 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 Owen, Richard, 1804-1892; Cornell University. College of Veterinary Medicine. Flower-Sprecher Veterinary Library. fmo. London, Longmans, Green
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Keywords: ., bookauthorowenrichard18041892, bookcentury1800, bookdecade1860
