200 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXV. 



It may be briefly described as follows : — 



TujMia Clarissa, sp. n. 



Colour essentially as in T. belangeri but brighter and clearer, and 

 the rump more definitely ochraceous, contrasting with the clear 

 olive grey of the fore-back and head. Mammae in three females 

 4, 5 and 6, their positions, when 6, as in belangeri, and, when less 

 than 6, such as to indicate that it is the normal posterior pair 

 which is absent, the spacing being quite different from that found 

 in the four-mammied lacernata. 



Skull with the narrow elongated muzzle of lacernata, its length, 

 measured from the gnathion to the concavity on the front edge of 

 the orbit above the lachrymal projection, 24, 24, 24-1, 24-4, 24*6, 

 24-6, 25-2 in seven specimens, as contrasted with 22-0, 22-1, 22-3, 

 22-3, 22*4, 22-6, and 23*3 in an equal number of T. belangeri from 

 the region of Tenasserim town. 



Dimensions of the tyfe, measured in the flesh : — 

 Head and Body : — ^182mm, ; tail 171 ; hindfoot 43 ; ear 17. 

 Skull : — Greatest length 52-5 ; condylo-basal length 49*5 ; 

 length of muzzle 25*2 ; upper tooth row 28'5. 



Hab : — Bankachon, Victoria Province, S, Tenasserim. 



Type.— Kdiult male. B. M. No. 14.12.8.95. Original num- 

 ber 4395. Collected 5th December 1913 by G. C. Shortridge. 

 Presented to the National Museum hj the Bombay Natural Historj^ 

 Society. 



T. clarissa cannot have a very wide distribution, as it is replaced 

 by T. belangeri 120 miles north at Tenasserim town, and by 

 T. ivilkinsoni 180 miles south at Trang. It probablj" ranges along 

 the hills which extend for about a hundred miles south of its type 

 locality Bankachon. 



These very clear-coloured red-rumped specimens being com- 

 pletely removed as a separate species, we maj^ further consider 

 whether the southern form of belangeri, as best represented by the 

 Tenasserim series, can still be looked upon as quite the same as the 

 typical race of that species as found in Pegu. 



Of the available specimens from Pegu, now 10 in number, onlj'^ 

 one. No. 6.4.5.3, referred to bj^ Dr. Lj'on, has a rufous hind back, 

 and this may possibh^ be due to bleaching. And the type in Paris, 

 as recorded by Dr. Lyon, is also without rufous. On the other 

 hand, of seven examples from Tenasserim town and its neighbour- 

 hood all but one have a well marked rufous or ochraceous rump, 

 and this is also the case with most Mergui specimens and a con- 

 siderable proportion of those from Northern Tenasserim up to the 

 mouth of the Salween. 



Consequently we might well recognize the average difference in 

 colour between the extremes b}' making a local subspecies of the 



