Segmentation-cavity, [20]
Selachian, caudal vein in, [154]
digitiform gland of, [201]
duct of Cuvier, [155]
hepatic portal system of, [155]
lateral vein of, [155]
pancreas in, [116]
rectal gland of, [201]
renal portal system of, [154]
spiral intestinal valve in, [119]
venous system, [154]
Semnopithecus, stomach of, [47]
Septum urogenitale, [27]
transversum, [142]
Serous folds in cases of Meckel’s diverticulum, [262], [263]
membrane, derivation of, [31]
Shape of cæcum and origin of appendix, [245]
of embryonic cæcum, [245]
Sheep, biliary ducts in, [145]
development of pancreas, [115]
Sigmoid flexure, development of, [54], [77]
Simia satyrus, ileo-colic junction and cæcum of, [216]
Sinus venosus, [146]