Tortoises = Chelonia, [312] f.

Tortoise-shell of commerce, [386]

Trachea, of Crocodiles, [443]

Trachysaurus, [560], [560];

T. rugosus, [560], [561]

Tree-frogs, [185] f.;

change of colour, [35]

Trematosaurus, [80], [83]

Triceratops, [413];

T. prorsus, [430], [430];