Grubea, [308];

attachment of eggs, [275]

Guanin, in coelomic corpuscles, [253]

Guinea-worm, [147]

Gunda, [31], [41], [42]

Gundidae, [42]

Gymnolaemata, [476], [512], [518];

lophophore, [476];

in fresh water, [492]

Gyrator hermaphroditus, [49]