Nasua rufa, duodenal fold of, [92]
ileo-colic junction of, [212]
pancreatico-gastric folds of, [181]
Necturus, alimentary canal of, [40]
maculatus, alimentary tract of, [52]
ileo-colic junction of, [201]
stomach of, [43]
venous system of, [158]
Neuro-enteric canal, [23]
Non-vascular ileo-cæcal folds, [262]
Nucleolus, [19]
Nucleus, [19]
Nutritive yolk, [19]
Nycticebus tardigradus, ileo-colic junction and cæcum of, [213]
spiral colon of, [234]
Nyctipithecus commersonii, ileo-colic junction and cæcum of, [214]
Œsophageal gutter of ruminants, [49]