. On the anatomy of vertebrates [electronic resource] . e Sumatran Tapir is20 feet, but in the Americankind only 10 feet. The compa-rative shortness of the intestinalcanal in the American Tapir isa specific difference not explica-IT3^ ble on any observed or known stomach of the Horse, exxn. difference of food or habits. Tn all the Equidce the stomach is simple, differing from that inMan by the pyloric part, fig. 358, d, being less contracted and 1 The species dissected were the common one (Tapirus Amtricanus, G-melin), 161, and the Tapirus Sumatranus. ALIMENTARY CANAL OF PERISSODACTYLA
. On the anatomy of vertebrates [electronic resource] . e Sumatran Tapir is20 feet, but in the Americankind only 10 feet. The compa-rative shortness of the intestinalcanal in the American Tapir isa specific difference not explica-IT3^ ble on any observed or known stomach of the Horse, exxn. difference of food or habits. Tn all the Equidce the stomach is simple, differing from that inMan by the pyloric part, fig. 358, d, being less contracted and 1 The species dissected were the common one (Tapirus Amtricanus, G-melin), 161, and the Tapirus Sumatranus. ALIMENTARY CANAL OF PERISSODACTYLA. 459 produced beyond the cardiac part: and this distinction is main-tained by more important characters of internal structure. Theoesophagus, b, is inserted at an acute angle into the smaller cur-vature, which rather resembles a deep The cardiac cul-de-sac, c, is very capacious, and is lined throughout internally with athick cuticular layer continuous with the lining of the oesophagus,and extends toward the pylorus as far as the middle of the. Colon of the Mare in situ. cxxn. cavity, where it terminates abruptly by a prominent indentededge : the interior of the pyloric half of the viscus, a, d, presentsthe usual villous mucous surface. The muscular coat of thestomach consists of several superimposed layers of fibres thatcross each other in different directions, some of them being appa- 1 Vomiting is rare and difficult; but has been observed in sea-sick horses slung onboard transport-vessels. 460 ANATOMY OF VERTEBRATES. rently derivations from the muscular bands of the alimentary canal is short in comparison with that of theRuminants; but this want of length, together with the simplicityof the stomach, is compensated by the enormous capacity of thelarge intestine, which seems of itself to occupy the whole of theabdominal cavity, fig. Commencing from the pylorus, the duodenum, fig. 358, f, isconsiderably dilated ; but its diameter soon contracts, an
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