‘puff adders’, [501].
Gill, Prof., on the maternal refuge, [489].
Gills retained through life, [44], [244].
[Glands], salivary, [35], [109], et seq., [113], [350], [352], [536], [556], [560];
of the Heloderm, [590].
[Glottis]; position of, [133], [136];
sheath of, [137];
of water ss., [223];
how far extended, [140].
Glyphodon, [347].