17() iiiii.iriiiaise'iuKLS. 



Mag. of Nat. Hist. 1867, p. 271, we read: »Tlie front 

 edge of the cutting- teeth broad , rounded , closely longitu- 

 dinally grooved. Bheithfosciurus nov. gen. Head large , 

 compressed, short; ears large, with a pencil of elongated 

 hairs at the tip ; cutting-teeth broad , rounded in front 

 and closely longitudinally grooved. The limbs free; feet 

 large , strong. Tail as long as the body and head , very 

 thick , clavate , covered with long flaccid hairs. The 

 grooving of the teeth is a pecularity not observed in any 

 other Sciuridae. RJieithrosciurus macrotis. Brown , very 

 minutely punctulated ; throat and beneath white ; lateral 

 streaks broad, yellowish; front of thighs bay. Tail black- 

 ish , whitish washed. Hab. Sarawak (Wallace). Type in 

 B. M." — In my above mentioned paper I already briefly 

 showed that these descriptions are highly short and that 

 they do not agree the one with the other. As I often 

 before had seen Squirrels with grooved upper cutting-teeth , 

 that is to say , where those teeth are provided each with 

 one or two grooves and while Gray in his first description 

 entirely had overlooked this character, 1 thought that his 

 words » cutting-teeth closely longitudinally grooved" in his 

 second note should be understood as only relating the 

 upper ones, for squirrels with grooved lower cutting-teeth 

 were not known. In my opinion now the grooving of the 

 upper cutting-teeth in squirrels has no generic value, but 

 my Saleyer squirrel presenting that character , I placed 

 the latter in the neighborhood of Gray's squirrel , but 

 with Gra3'^'s generic title Rheitkrosciurus in Parenthesi. In 

 doing so I only iutented to fix the attention of the readers 

 on the always excellent character of the grooved cutting- 

 teeth in distinguishing species. 



Anderson in his » Yunnan-Expedition" says not a single 

 word about the grooved character of the incisors , and he 

 describes the squirrel as follows: »The head is large, com- 

 pressed and short. The ears are large Avith a pencil of 

 elongated hairs at their tips , the feet are large and strong 

 and the sides of the animal are laterally banded. The 



JNoLo li-oiu the X-ieyclen M.useum, \'ol. HI. 



