Primates, ileo-colic junction of, [213]
types of ileo-cæcal folds in, [265]
Primitive aortæ, [63]
common dorsal mesentery, [33]
dorsal mesentery after rotation, [79]
mesentery, effect of intestinal rotation on, [59]
mesenteric segment, [72]
mesocolic segment, [72]
jugular veins, [147]
Proboscidea, ileo-colic junction of, [210]
Proctodæum, [24], [26]
in human embryos, [27]
Protoplasm, [19]
Protopterus, pancreas in, [117]
Proteus, alimentary canal of, [40]
anguineus, stomach of, [43]
Proteles lalandii, ileo-colic junction and cæcum of, [212]
Proventriculus, [50]
Psalterium, [49]