lOG SCIURUS. 



rally in species with two upper premolars there are very 

 striking differences in the size of the foremost one. 



The number of species of Asiatic Squirrels largely sur- 

 pass the number of those inhabiting Europa , America and 

 Africa taken together; for meanwhile Europa possess only 

 a single species , America ten and Africa sixteen true Squir- 

 rels, there are in Asia more than thirty well defined spe- 

 cies. The number of species increases from North to South ; 

 the largest number is to be found in the islands Sumatra 

 and Borneo; here also are represented the largest and on 

 the other hand the smallest species of the genus. East- 

 wards from Celebes and Java no Squirrel lives. Squirrels 

 with stripes on back or sides are not to be found in 

 Europa and America^), Africa has four striped Squirrels, 

 Asia however nourishes a much larger series. 



The description given by Sounerat of his Ecureuil de Gingi 

 [Sciiirus dschinscliicus Linn.Gm., Sciurus descJmiscMcus Ander- 

 son) is to short and at the same time appliable to more than 

 one species, so that nobody can make out what species 

 Sonnerat had before him. I thus pass over it in silence. 

 I am convinced that the study of larger series will bring 

 to light that there are several nominal species among the 

 species from the Indian continent summed up in the fol- 

 lowing list. 



SCIURUS. 



A. Back and sides of body without longitudinal stripes. 



I. Squirrels two times larger or more than our Common 

 Squirrel. Tail much longer than head and body. 



Sciurus indicus. 



\111. Sduriis indicus Erxleben. Systema Regni Animalis. 



p. 420. 

 1878. Sciurus indicus Anderson. Yunnan Expedition, p. 222; 



Sciurus maximus Anderson. 1. c. p. 223. 



1) Trausitory in some American species. A short black side-stripe seems to 

 be constant in Sciurus aberti Woodhouse. 



Notes from the Ley den Museum, Vol. V. 



