Ochotona erythrotis (Büchner, 1890) . Wiss. Result. Przewalski Cent. Asien Reisen. Zool. Th., B. I: Säugeth., p. 165.

TYPE LOCALITY: Not specified; restricted by Allen (1938:535) to "Burchan-Budda", East Tibet, China .

DISTRIBUTION: E Qinghai, W Gansu, possibly N Sichuan, S Xinjiang, and Tibet (China).

STATUS: Indeterminate.

SYNONYMS: vulpina Howell, 1928.

COMMENTS: Formerly included gloveri; see Corbet (1978c:68). Feng and Zheng (1985) provided evidence that gloveri (including brookei) is a distinct species. Formerly included in rutila (Ellerman and Morrison-Scott, 1951), but now regarded as distinct (Feng and Zheng, 1985; Weston, 1982). The distribution of this species is poorly known, as are its relationships with the apparently allopatric rutila, iliensis, and gloveri .