794 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XIV. 



Measurements. — External measurements of type : Total length, 408 mm. ; 

 head and body, 2% ; tail, 202 ; hind foot, 40 ; ear from meatus, 21 ; ear 

 from crown, 16 ; width of ear, 15. 



Cranial measurements of type : Greatest length, 44*6 mm. ; basal length, 

 40 ; basilar length, 38 ; length of nasals, 16 ; combined breadth of nasals, 

 56 ; zygomatic breadth, 21*8 ; interorbital constriction, 6*8; maxillary tooth- 

 row (alveoli), 7'4. 



Specimens examined. — Two, both from Great Nicobar Island. A specimen 

 from Little Nicobar may represent this species, but it is too young for posi- 

 tive determination. 



Remarks. — The cranial character by which the species is distinguished from 

 its allies though trivial is apparently of perfect constancy. In none of the 12 

 skulls of Mus burrus is there any approach to the spatulate form of nasals. 

 Genus TUPAIA Raffles. 

 TuPAiA NICOBAKICA SUKDA, new sub-species. 



Type.— AAnlt male (skin and skull), No. 111757, U.S.N M. Collected on 

 Little Nicobar Island, March 1, 1901, by Dr. W. L. Abbott. Original num- 

 ber, 899, 



Characters. — Similar to Tupaia nicoharica nicoharica, but light areas of 

 pelage much less yellow and less contrasted with dark areas. 



Colour. — Type : Entire under parts, front and hind legs, head, neck, shoulder 

 and anterior half of back wood brown, tinged with drab posteriorly and on 

 upper parts, with buff elsewhere. An indefinite dark shade on forehead and 

 another on nape, the latter sending back a faint median streak and two still 

 more indistinct lateral shades. On under parts and inner surface of legs the 

 hairs are dull and lustreless and the colour clear, but on upper parts and outer 

 surface of legs the glossy texture of the hairs, together with a very fine 

 annulation (particularly in mantle), imparts a faintly grizzled aspect. 

 Posterior half of back very dark brown, almost black, with here and there a 

 hair which shows a trace of wood brown annulation. Tail deep burnt umber 

 throughout, except at extreme base, where it shades abruptly to black above 

 and to the drab wood brown of belly below. 



In other specimens the dark dorsal area is lightened to prouts brown 

 (of a shade considerably darker than Ridgway's PI. Ill, fig. 11), and the tail 

 to a pale burnt umber glossed with russet. In most cases, however, the colour 

 is like that of the type, or nearly so. 



Skull and Teeth. —I cannot find that the skull and teeth differ from those 

 of Tupaia nicoharica nicoharica, 



Measurements.— External measurements of type : Total length, 410 mm. ; 

 head and body, 190; tail vertebrae, 220 ; hind foot, 48 ; ear from meatus, 

 16 ; ear from crown, 7 ; width of ear, 13*4, Average of 10 specimens from the 

 type locality : Total length, 388 (370—410) ; head and body, 17G (170-190) 

 tail, 212 (200—220) ; hind foot, 47*5 (47—49) ; hind foot without claws, 44*4 

 (43*4—45). 



