SCIENTIFIC RESULTS FROM THE MAMMAL SURVEY. 613 



Hemigalus or Hemigale liarclwickei auctorum,' ' ■ 

 *The spelling of the specific name may be taken as Gray first 

 wrote it — for the P.Z.S. of Jnne, 1837 — as this was the spelling 

 he afterwards used, even though it was not the first published. The 

 derbyanus may be looked upon as a misprint, corrected by its 

 author. 



The original H. derhianus was said to be from the Malay Penin- 

 sula, and on comparing the type (B. M. No. 55, 12. 24. 540, 

 received from the Zoological Society's Museum) with two examples 

 from Johore and Malacca, I find that it agrees remarkably with 

 them in the character of its markings. On the other hand, the two 

 Tenasserim specimens, quite like each other, show a considerable 

 difierence from the Malay examples both in pattern and in certain 

 cranial characteristics, and may be looked upon as representing a 

 special subspecies. 



Hemigalus derhianus incursor, siibsp. n. 



Size as in true derhianus. Ground colour of back rather lighter 

 and more silvery. Dark markings of nape and shoulders broad, 

 well defined and continuous, those of true derhianus being very 

 much broken up ; the longitudinal bands continuous with the 

 transverse shoulder bands and only broken by the median light 

 band, which has a small band crossing it on the withers. Other 

 markings apparently as in derhianus. 



Skull in general as in derhianus, but the bullae larger and more 

 swollen anteriorly, not running forwards to a point, but nearly as 

 broad in front as behind, and forming a rounded oblong instead of 

 a round-cornered triangle. 



Teeth rather small ; canines slender ; inner lobe of p^ much less 

 developed than in any of the other available specimens of the genus. 

 Dimensions of the Type, measured in the flesh :— 

 Head and body 520 mm. ; tail 393 ; hindfoot 85 ; ear 37. 

 Skull, condylo-basal length 99 ;* zjrgomatic breadth 46'5 ; palatal 

 length 52-5 ; front of canine to back of m^ 39-5 ; p^ 6*2 x 3-6; 

 p' 7-2 X 5-6. 



Hah. — S. Tenasserim. Type from Bankachon, Victoria Province. 



%5e.— Adult male. B. M. No. 14, 12. 8. 115. Original 



number 4723. Collected 13th January 1914 by G. C. Shortridge. 



Presented to the National Museum by the Bombay Natural History 



Society. 



The differences in the colour pattern, the size and shape of the 

 bulla3 and'the development of the inner lobe of p^ together seem to 

 indicate that the Tenasserim form is subspecifically distinct from 

 that of the Malay Peninsula. Whether the Bornean form — which 

 would have the name hoiei — should also be distinguished from der- 

 hianus I am not at present able to say. 



