372 Mr. G. S. I\Iillor, Jr., o/i 



Nine of tlie specimens in the Kiitsenko collection (one 

 from Tosor, seven from Karanolyenoye ushchelie, and one 

 from Ushchelie Malaya Kuizuil-su) are referable to the same 

 species. They show considerable variation in size, due 

 j»ji|)arently to differences in age. The npper length of skull 

 ranges from 22*4 to 25 mni.^ thus filling the gap between 

 the "\^^orthington specimen and that figured by Buchner. 

 Hind foot 18'8 (17) mm. in the largest skiu (that from 

 Tosor). 



Microtus near arvalis. 



Two specimens (one skull) from Tekes Valley, 5800 feet, 

 two from Big Musart, 5800 feet and 6000 feet, and nine (no 

 skulls) from Kapkak, 8000 feet, are apparently all referable 

 to a Sj)ecies closely resembling the European Microtus arvalis, 

 but M-hich, in the present uncertainty respecting the status of 

 members of this group, I am unable to name. As compared 

 with sixteen skins from Brunswick, Germany, they are 

 slightly darker and the upper parts are more noticeably 

 grizzled. In size they closely agree with the German 

 specimens. The skulls are injured, but they appear to differ 

 in form from those of European arvalis \\\ the somewhat 

 greater breadth of brain-case and less noticeable arching of 

 the entire upper surface. Teeth strictly as in Microtus 

 arvalis. This animal is readily distinguishable from Microtus 

 ravidulus by its much darker colour and by its flattened, 

 broadened skull. 



A specimen with badly damaged skull from Zaukilenoye 

 ushchelie (Kutscnko, no. 122) is probably referable to the 

 same form. 



Alticohi Worthingtoni, sp. n. 



Type. — Adult female (skin and skull), collected in the Tian 

 Shan Mountains (Koksu), altitude 90l)0 feet, September 30, 

 1904, by A. B. Bayley Worthington. Original number 24^. 



Characters. — Resembling Alticola lama (Barrett-Hamilton) 

 and A. alhicauda (True), but differing from the former in 

 having the tail about twice as long as hind foot, and from 

 the latter in having the ears larger, the teeth smaller, the 

 anterior loop of m^ narrower, and the first outer reentrant 

 angle of m^ deeper and better defined. 



Colour (Type). — Upperparts finely blended smoke-grey and 



• The specimen is now registered as B.M. '>. 12. 4. 11. 



