70 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75 



OCHOTONA (PIKA) ALPINA AUGENTATA A. B. Howell 



Ochotona (Pika) alpina at-getttata A. B. Howhxl, Proe. Biol. Soc. Wash., vol. 

 41, 1928, p. 116 (15 miles nortli-nortliwest of Niughsia, uortliern Kansn, China). 



/Specimens. — Two ; the type and a tototype. 



The array of Chinese pikas that have been described, and especially 

 from Kansu, is quite formidable. Nevertheless it has been necessary 

 to name this race as the Chinese representative of alpinai In summer 

 pelage it is of a striking shade of silvery with pale ochraceous rump. 



OCHOTONA (PIKA) SORELLA Thomaa 



Ochotona sorella Thomas, Abst. Proc. Zool. Soc. London, 1908, p. 45 (20 miles 

 south of Ningwufu, Shausi, China). 



Spechnen. — One from 60 miles north of Taiyuanfu, Shansi. 



This example comes from close to the type locality of sorella and 

 it can hardly be doubted that this identification is correct. Its 

 small, slender skull places it in relationship with O. cansa, as stated 

 by Thomas, and the dimensions are even smaller (foot 25 mm.) than 

 of the type of sorella. Perhaps the fact that this is a midwinter 

 specimen while the type was secured in summer explains the differ- 

 ence in coloration. At any rate the skin at hand is a miniature 

 replica of a specimen of hedfordi from the same place, save that the 

 soles of the feet are sooty. Othewise the coloration is identical; but 

 of course the skull is subgenerically different. It is said to be an 

 inhabitant of woods and Sowerby found it to be an extremely rare 

 animal. 



OCHOTONA (PIKA) THIBETANA (Milne-Edwards) 



Lagomys thihetanux Milne-Edwards, Nouv. Arch. Miis.. vol. 7, 1S71, p. 93 

 (Muping, Szechwan, China). 



Specimens. — Nine from Szechwan: Sungpan, 4; Washan„ 2; and 

 Ulongkong, 10 miles south of Tatsienlu, 3. 



The identification of these specimens is largely circumstantial 

 They are all very poorly made skins of juveniles w^ith fragmentary 

 skulls, but the coloration and palatal foramina of the three in which 

 this part of the skull is intact show at least that they belong to this 

 group. It is interesting to note that both this form and ckinensis 

 occur at Ulongkong. 



OCHOTONA (PIKA) CANSA MOROSA Thomas 



Ochotona cansus Lyon, Smith.s. Misc. Colls., vol. 50, 1907, p. 136 (Taochow, 

 Kansu, China). 



/Specimens. — Nine, including the type, from Taochow, Kansu. 

 These are June specimens in which there is considerable variation 

 in tone of pelage because of differences in wear. 



