Water-frog, [263], [268], [269]
Gage, on Triton viridescens, [129]
Galapagos Islands, tortoises of, [372], [377] f.
Galesaurus, [307]
Gampsosteonyx, [271];
Gasco, on spawning of newts, [124]
Gastrechmia, [140], [141], [232]
Gastrocentrous vertebrae, defined, [282]
Gaupp, on frogs' respiration, [47] n.