Hypothymis, ii. [271]
Hypoxanthus, ii. [304]
Hypsipetes, ii. [267]
Hypsiprymnus, Australian Post-Tertiary, i. 157
ii. [251]
Hypsirhina, ii. [376]
Hypsirhynchus, ii. [375]
Hyrachyus, N. American Tertiary, i. 136
HYRACIDÆ, ii. [228]
Hyracodon, N. American Tertiary, i. 136