Megamys, S. American Eocene, 148

Megaspira, European Tertiary, 169

Megatheridæ, in Brazilian caves, 145

Megatherium, N. American Post-Pliocene, 130

in Brazilian caves, 145

S. American Pliocene, 147

Melania, European secondary, 169

Meleagris, N. American Miocene, 163

Mellivora, Indian Miocene, 121

Melolonthidium, Oolitic insect, 167