Colombo, gigantic tortoise of, [377]

Coloration, warning colours of Amphibia, [38], [156];

protective, of Amphibia, [191], [238], [252];

of deserticolous reptiles, [494]

Colosthetus, [238], [242]

Colour, changes of, in Anura, [35];

in Calotes, [518], [519], [520];

in Geckos, [509];

in Lacertilia, [498];

mechanism of changing, in Chameleons, [570], [571]