Aorta, early condition of intestinal branches, [32]
Aortal arterial system, development of, [63]
Aplacentalia, definition of, [36]
Appendix, abnormal positions of, [277]
absence of, [249]
influence of dorsal vascular fold on shape of, [271]
origin of, and shape of cæcum, [245]
position and peritoneal relations of, [250]
variations of peritoneal relations, [258]
Arctoidea, ileo-colic junction of, [212]
Arctopithecus marmoratus, ileo-colic junction of, [208]
Arctopithecini, ileo-colic junction of, [214]
Arrest of development before intestinal rotation, [60]
Arteries, of allantois, [64], [146]
Artery, caudal, [64]
ileo-colica, [66]
colica dextra, [66]
media, [66]
coronary, [181]
external iliac, [64]
gastro-epiploica sinistra, [108]
hepatic, [65], [179]
ileo-colic, [262]
inferior mesenteric, [67]
internal iliac, [64]
pancreatico-duodenalis inferior, [66]
omphalo-mesenteric, [64], [146]
sacralis media, [64]
splenic, [65], [108]
superior mesenteric, [64], [65]
umbilical, [64]
vitelline, [64], [146]