1906.] Allen, Mammals from Hainan, China. 473 



teriorly, uniform deep chestnut red; mystacial bristles deep black; ventral sur- 

 face superficially white or faintly yellowish white, with the basal portion of 

 the fur dusky; sides of neck, shoulders, and outer surface of fore limbs reddish, 

 varied slightly with black-tipped hairs; front of thighs and inside of hind limbs 

 deep reddish chestnut, the outside reddish brown varied with black-tipped hairs; 

 feet dark tinged with reddish brown, the hind feet a little darker and redder 

 than the front feet; ears thinly clothed, dark brown tinged slightly with reddish, 

 with a large fluffy spot of soft white fur at the outer base; tail above blackish, 

 the hairs tipped and annulated basally with dull white; lower surface of tail 

 deep chestnut, bordered narrowly with black and slightly fringed with white. 

 The red on the sides of the head and neck, the large deep red area on the front 

 of the thighs, and the red under surface of the tail are the conspicuous features 

 of the coloration, to which may be added the red head in striking contrast with 

 the dark olive brown back. 



Measurements (from a well-prepared skin). Total length, 305; head and 

 body, 170; tail vertebrae, 135; tail to end of hairs, 180; hind foot without claws, 

 40, with claws, 45; ear from crown, 15 mm. The skull is long and narrow, the 

 rostral portion greatly elongated and attenuated, with very long, narrow nasals. 

 It is, however, decidedly broader and less elongated than in the extreme de- 

 velopment reached in t this respect in Rhinosciurus laticaudatus. Length 

 (occiput imperfect) from incisors to posterior border of audital bullae, 45; zygo- 

 matic breadth, 30; interorbital breadth, 16; greatest width of braincase, 24 

 length of nasals, 19; width of nasals posteriorly, 6, anteriorly, 6.5; palatal 

 length, 30; palatilar length, 23.5; maxillary toothrow, 10; diastema, 25; mandi- 

 bular ramus, front border of symphysis to tip of condyle, 24; height at coronoids, 

 12.6; toothrow, 10 mm. 



Represented by 5 specimens, all taken at Riudon, March 3,10, and 1 1 , 1903 , 

 and quite uniform in coloration. 



This species seems to find a near ally in Funambulus pyrrhomerus 

 (Thomas), from Ichang, Yang-tse-kiang, from which, however, it 

 differs in the sides of the head being rich red, and in the red of the tail 

 extending over the anal region. The postauricular patch of soft 

 fur is clear white instead of yellow. In size, in general coloration, 

 and in the form of the skull the two species are quite similar. 



12. Sciurus erythraeus insularis subsp. nov. 



Sciurus casianeiveriris SWINHOE, P. Z. S., 1870, p. 231. 

 Type, No. 26609, ? a( i-, Lei-Mui-Mon, Hainan, Jan. 5, 1903, 

 Above olivaceous gray, the hairs individually dusky plumbeous at extreme 

 base, then ringed alternately with narrow bands of yellowish olive and broad 

 bands of black, about three of each, the tip of the hair being usually yellowish 

 but frequently black; outside of limbs like the back, becoming darker on the 

 upper surface of the feet, the hind feet often blackish; whole head like the back, 

 with the sides of nose, cheeks, chin, and throat rather lighter and grayer; ventral 

 surface, from the chest to the base of the tail, and inside of limbs, vinaceous 

 rufous, mixed with gray on the foreneck; posterior surface of ears yellowish, 

 faintly tinged with rusty on the margin, and rusty yellow on the inner surface ; tail 



