. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. KEPTILIA. 295 The stomach is closely connected with the liver, and in some species, as, for ex- \ Draco volans. a, ventricle of the heart; b, the right auricle; c, the left auricle; dd, carotid arteries; ee, the vena jugularis ; Jf, the subclaviau artery ; g, the trachea ; h, the right lung ; /, the left lung ; k, the liver; / /, the lower venous sinus, which commences from the liver and extends to the right venous sinus; m, the biliary duct; o, the stomach; p, the commence- ment of the small intestine; qqq, the
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. KEPTILIA. 295 The stomach is closely connected with the liver, and in some species, as, for ex- \ Draco volans. a, ventricle of the heart; b, the right auricle; c, the left auricle; dd, carotid arteries; ee, the vena jugularis ; Jf, the subclaviau artery ; g, the trachea ; h, the right lung ; /, the left lung ; k, the liver; / /, the lower venous sinus, which commences from the liver and extends to the right venous sinus; m, the biliary duct; o, the stomach; p, the commence- ment of the small intestine; qqq, the windings of the small intestine; r, the commencement of the large intestine; s, its attenuated region; 11, the kidneys; u, the cloaca; t>, the bladder; w, the anus. ample, in Emys concilia, absolutely imbedded in its substance. The diameter of the small intestine in the Ckelonians gradually diminishes from the py- lorus to its termination in the large intestine, the diameter of which is much larger, and its extremities much thicker. The parietes of the whole intestinal canal are indeed thicker than in most other reptiles. The calibre of the intestine is uniform throughout, and its lining membrane presents folds of variable breadths in different species, which are gene- rally united together so as to form a kind of net-work at the commencement of the small intestine, but subsequently these become longitudinal and parallel. In the large in- testines these folds become less regular in their arrangement. It may t>e added to the above general de- scription, that the alimentary canal of the reptiles belonging to this order presents differ- ences in each genus, and even in some species of the same genus, which are in relation with corresponding differences in the nature of their food. The tortoises and the turtles, which live principally upon herbs or fuci, have the intestinal canal long ; the large in- testine longer than the small; the latter being inserted into the former la
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