On <i minute Shrew from Lake Baikal. 401^ 



8. Nyctophiltts walkert, Tlioa. 

 Ann. & Mag. N. H. (fl) ix. p. 105 (1892). 



Size coiispicuouslj smalliT ami ears Hhortrr tlian in niiy 

 otlior sj)cci('s. Nose-loaf of iiu'iliiiin development (No. 2). 

 l^aculiiin not known. 



k^kull far smaller than in otiior species, bullae hardly larf];er 

 than in onlinary short-eared V'espertilionine bats. 



Forearm 335 mm. 



Skull: greatest length \'.l ; condylo-basal length 12'2 ; 

 bulla 2*8; ma.xillary tootii-row 4'7. 



Hah. Northern Territory (Atlelaide River). 



Type. Adult female. Ti.M. no. 02.4. 4. 1. 



No further speeimens of liiia most distinct little species 

 have as yet been recorded. By its small size, ])roportionally 

 small ears, and the correspondingly reduced bullte, it may be 

 said to be more different from all the other species than any 

 of them are from each other. But there is nothing to indicate 

 any superspecitic disstinction. 



XLII. — On a minute Shrew from Lake Baikal. 

 By Oldfield Thomas. 



(Published by permission of the Trustees of the British Museum.) 



Dl'HiNG his recent expedition to Lake Baikal, unfortunately 

 interrupted by the outbreak of war, ^Ir. G. A. Biirney 

 obtained a single specimen of an excessively small shrew, 

 smaller than any Sorex known, and rivalling in minuteness 

 the pygmy FachyurtB of the hodgsoni group. It would 

 appear to be allied to the Japanese Sorex hawkeri and the 

 more recently described S. tscherskiiy Ognev *, from the 

 Ussuri. I would [)ropose to call it 



, Sorex burneyi, sp. n. 



Size excessively minute, less than in any known species 

 of the genus. Fur of back only about 2*3 mm. in length 

 (summer). General colour much as in S. hatckeri, light 

 brown, near sepia, above, sides and under surface dull drabby 

 whitish, not contrasted with colour of upper parts, and very 

 far from white. Hands and feet dull brownish white. Tail 



• Ann. Mu.s. St. IVt<.r!<b. xviii. p. 41-' (1013). 



