Ochotona (Pika) hoffmanni Formosov et al. 1996
Ochotona (Pika) hoffmanni Formosov et al. 1996, Byull. Moskow Ova. Ispyt. Prir. Otd. Biol., 101 (1): 29.
Type Locality: " Mongoliya, Khenteiskii aimak, Delger-Khan somon, 47E20's.sh.[N lat.],108E40'v.d. [E long]. [Mongolia, Khenteisk district, Delger village]." .
Vernacular Names: Hoffmann's Pika.
Distribution: Restricted to the subalpine zone of the Hentiyn Nuruu ridge, Bayan-Ulan mountains, Mongolian People’s Republic, and Erman range, Russia (Formozov and Baklushinskaya, 1999).
Conservation: IUCN – Vulnerable.
Discussion: Subgenus Pika . Originally described as a subspecies of alpina, but elevated to full species status by Formozov and Baklushinskaya (1999) on the basis of morphological, bioacoustical and chromosomal evidence.