List of ochotonids

Ochotonidae is a family of small mammals in the order Lagomorpha. A member of this family is called an ochotonid or, colloquially, a pika. They are widespread throughout Asia and western North America, and are generally found in grassland, shrubland, and rocky biomes. Pikas are all roughly the same shape and size, with no tails, ranging from the 11 cm (4 in) long Gansu pika to the 29 cm (11 in) long northern pika. No species have population estimates and many have not yet had their conservation status evaluated, though the Helan Shan pika, Hoffmann's pika, Ili pika, and Koslov's pika are considered endangered.

The 29 extant species of Ochotonidae are contained within a single genus, Ochotona, though that genus is sometimes split into four subgenera: Alienauroa, Conothoa (mountain pikas), Ochotona (shrub-steppe pikas), and Pika (northern pikas). Many extinct Ochotonidae species have been discovered, though due to ongoing research and discoveries the exact number and categorization is not fixed.^[1]