distinctive features of mammalia of, ii. [6]
reptiles of, ii. [9]
amphibia of, ii. [11]
fresh-water fishes of, ii. [12]
summary of vertebrates of, ii. [13]
insects of, ii. [13]
land-shells of, ii. [19]
marine shells of, ii. [20]
summary of past history of, ii. [80]