Motella, [649], [288]

Mouth, position, size, and shape;

of Cyclostomata, [150];

of Fishes, [153] f.

Moxostoma, [581]

Mud-Fish, [610]

Mugil, [640], [264];

M. capito, [640]

Mugilidae, [640], [637], [256];

gizzard, [260]