112 MAMMALS OF THE PACIFIC WORLD 



The Tufted-eared Ground Squirrel (Rheithrosciurus) of 

 Borneo has many grooves on the front of the upper incisors. 

 The incisors are thick from front to rear, narrow from side to 

 side. The body is reddish brown, with a white flank stripe run- 

 ning lengthwise. It is the largest of the ground squirrels ; the 

 total length is more than two feet, including the twelve-inch 

 tail. 



The Long-nosed Ground Squirrels (Rhinosciurus) of the 

 Malay Peninsula, Sumatra, Borneo, and several nearby islands, 

 are chiefly insectivorous. The small, weak, upper incisors act 

 with the lower ones like tweezers, while the tongue is said to be 

 long and protrusible. The tail is short and bushy. 



Another Long-nosed Squirrel {Hyosciurus) is found in Cele- 

 bes. In contrast with Rhinosciurus it has very long claws, espe- 

 cially on the fore feet. Its incisors are normal. The dorsal color 

 is dark brown, flecked with tawny ; that of the underparts white. 



Bamboo Rats. Family Rhizomyid^ 



The Bamboo Rats {Rhizomys) of Sumatra and southern 

 Asia are large and heavy-bodied, with small eyes and ears, short 

 tail, and thick, silky, dark gray fur. Superficially they resemble 

 American pocket gophers. Their lives are spent mostly under- 

 ground amid the roots of dense stands of bamboo. They come 

 out to cut bamboo and other plants, somewhat as wood- 

 chucks do. 



Dormice. Family Glirid^ 



Dormice resemble small squirrels in appearance and habits, 

 but internally are more like rats. The fur is soft and velvety ; 

 the tail is well furred and the eyes large. Dormice hibernate 

 during cold weather. 



The Japanese Dormouse (Glirulus) is yellowish brown, with 

 a slight ashy color showing through from the bases of the hairs. 

 A broad, dark brown stripe runs from the back of the head to 

 the base of the tail. Although this dormouse is little larger than 



