reptiles and amphibia of, i. 204
fresh-water fish of, i. 205
insects of, i. 205
islands of, i. 206
sea not separating distinct faunas, i. 201
Megabias, ii. [270]
Megablabes, ii. [376]
Magacephala, ii. [478]
Megacephalon, ii. [342]
Megacerops, N. American Tertiary, i. 137