operculum of, [44];
of Nototrema, [203]
Gill-clefts, [42];
of Urodela, [42];
of Anura, [42]
Girtanner, on musical appreciation of tortoises, [368]
Glass-Snake, [538]
Glauconia, [594]
operculum of, [44];
of Nototrema, [203]
Gill-clefts, [42];
of Urodela, [42];
of Anura, [42]
Girtanner, on musical appreciation of tortoises, [368]
Glass-Snake, [538]
Glauconia, [594]