474 JOURNAL, BOMBAY NATURAL HLST. SOCIETY, Vol. XXIII. 



runBing into holes and crevices at the slightest sound or movement. It is 

 essentially a ground squirrel, seldom, if ever, ascending trees, though by no 

 means confining itself to open country.'" — G. C. S. 



Vernacular name — Shin-baygaya (Mt. Popa villagers). 



Vandeleuria dumeticola, Hocigs. 



Hodgson's Tree Mouse. 



1845. Mus [Vandeleuria) dumeticola, Hodgson, A. M. N. H., XV., p. '268. 

 1891. Vandeleuria oleracea, Blanford, Mammalia, No. 270 {jyfirtim). 



(5 1. Mt. Popa. 

 " Probably more plentiful than it appears to be. It is nocturnal and 

 arboreal, and is rarely trapped," — G. 0. S. 



Vernacular name — Ngapyaw-chwet. (Mt. Popa.) 



Epimys rtjfesceks, Gray. 



7%e Common Indian Rat. 



Variety with white underparts : — 

 c? 6, $ 2. Pagan. 

 6 12, 2 9. Mt. Popa. 

 5 2. Ngapyinin. 

 cJ 1, 5 !• Kyouk Nyoung. 

 J 6, 2 6. Mingun. 



i^See also Eeports Nos. 5, 6, 7, 9, 10, 11, 13, 14 and 15.) 



The dark bellied form, which unfortunately at the beginning of these 

 reports I labelled as ' rufescens,'' is here apparently entirely absent, as is 

 noted by Mr. Shortridge in sending in his Collection. True rattus, i.e., the 

 English 'Black Eat,' has practically deserted Britain and is now the 

 ' Sailor Rat,' and with the improvement of communications has spread all 

 over the world. As we go East we seem to be getting into an area where 

 the white bellied form is indigenous, and rattus a mere tourist. To me the 

 evidence seems to be collecting that the original form of the species 

 rattus was a white bellied one, and that its earliest home was in Malaya. 



Vernacular names — Chwet, Chwet-witm-byu (Popa). 



Epimys concolor, Blyth. 



The little Burmese Rat. 



1859. Mus concolor, Blyth, J. A. S. B., XXVIII., p. 295. 

 1891. Mus concolor, Blanford, Mammalia, No. 273. 

 2 1. Mingun. 

 cJ 1. Kyouk Nyoung. 

 (S 23, 2 27, 1. Mt. Popa. 

 S 3. iPagan. 

 A small rat with the colouring of the common European house mouse. 

 Its mammary formula of 2 pectoral + - inguinal on each side, "making 8 in 

 all'' is most characteristic. 



Blanford records it from Moulmein, but not North of 20°. 

 " Probably distributed throughout the Dry Zone. Very plentiful in 

 Popamyo Village, about half way up the Mountain, where it was very 

 much more plentiful than riifescens, although that species occurred in 

 normal numbers. It seems to be especially a house rat, seldom being 

 trapped far from habitations. Not so carnivorous as rufescens. At Popamyo 

 no animal matter seemed to be touched by them, though they were very 



