Palæarctic, i. 182

ii. [221]

OXUDERCIDÆ, ii. [431]

Oxyæna, N. American Tertiary, i. 134

Oxydoras, ii. [443]

Oxyglossus, ii. [421]

Oxygomphus, European Miocene, i. 118

ii. [186]

Oxylabes, ii. [262]

Oxymycterus, in Brazilian caves, i. 145