ECHIMYS MACROURUS. 97 



NOTE XXIII. 

 ON A NEW SPECIES OF ECHIMYS. 



BY 



Dr. P. A. JENTINK. 



February 1879. 



Echimys maerourus, Temminck in litt. 



DifiFers from the other species of Echimys hitherto des- 

 crihed by the extraordinary length of the tail. 



Upperparts rusty brown : cheeks , sides of the abdomen 

 and outside of legs rusty. Chin , chest , belly and 

 inside of legs dirty white. Woolly hairs on the upperparts 

 rusty , intermixed with narrow flexible rigid hairs , rusty 

 near the base , brown towards the tip. The colors of the 

 upper and lower parts are sharply defined. 



Ears elongated , rounded at the tip. 



Tail with very short dirty yellow hairs 



Whiskers surpass the tips of ears , brown near the base, 

 for the rest rusty. 



Hind foot with five toes ; the three middle toes of nearly 

 the same length ; the fifth toe is shorter , the thumb is 

 the shortest, but very well developed. Fore foot with 

 four fingers and a very small thumb with a flat nail. The 

 two middle fingers of nearly the same length. Claws yel- 

 lowish white, covered by the long hairs of the toes. 



Notes from the Leyden Museum. 



