THOMAS: Rats and Shrews. 113 
This species is one of the normal short tailed species allied to 
U. bruijnii, lorenzi, etc., but does not agree in shape of skull with any known 
form. 
The occurrence of the genus Uromys so near to Mindanao has induced 
me to compare it with the Philippine genus Apomys. |: find it to be 
undoubtedly very nearly allied, but it may apparently be: distinguished 
from the latter by its more completely hairless tail, stouter feet, its less 
elongated muzzle and more projected zygomatic plate. Whether these 
characters will prove to be constant throughout all the species of both 
genera remains to be seen. The structure of the molars is quite the same 
in both, as is the shortening of the palatal foramina. 
Of the Shrews | have found it impracticable at present to make any 
definite determinations, except in the case of one single Water Shrew from 
Sumatra, which is not only a new species, but has enabled me to describe 
a new genus, Crossogale. 
Crossogale, gen. nov. 
Nearly allied to Chimarrogale. 
Shape of skull comparatively normal, the brain-case not excessively broadenep 
and flattened. Anterior incisors as broad terminally as proximally, the internal accessory 
notch and cusp much more developed, so that the two incisor-tips are some way apart. 
In Chimarrogaïe these teeth are sharply pointed, the accessory cusp is reduced, and 
the two tips are comparatively close together. 
Range of genus. E. Indian Archipelago, instead of Himalayas, China, and 
Japan, 
Genotype. Crossogale pheura (Chimarrogale pheura, Thos.). 
14. Crossogale sumatrana, THOS. 
Coloured like C. pheura of Borneo, but size greater, 
Fur, as usual in water-shrews, soft and velvety, hairs of back about 7 mm. in 
length. Colour above uniform sooty grey, the hair-tips black; a few ionger white-tipped 
piles on the rump. Under surface dull brownish. Hands en! the swimming-fringes 
dark brown. Feet mostly whitish, but their outer border and the swimming-fringe brown. 
Tail uniformly dark brown throughout, 
Skull shaped about as in C. pheura, but much larger and heavier. 
Anterior incisors larger and stronger than in phœura, the characteristic internal 
terminal cusp strongly developed, and the main outer points well separated. 
Hab, Sumatra. Type from Pager Alam, (Palembang Highlands). 
Type. Old specimen (probably male). B.M. no. 21. 2. 9. 1. Temporary number 169. 
Collected 28th November, 1918. Presented by the Buitenzorg Museum. One specimen 
only. 
The characters of this shrew, agreeing closely as they do with those of the Bor- 
nean form, and standing out in marked contrast to those of the four known Continental 
species, appear to render it advisable to separate generically fom each other the water- 
shrews of the two regions. 
(Ann. and Mag, of Nat. Hist. Ser. 9, Vol. VII. March 1921, p. 243.) 
