Vol. XII, pp. 95-96 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTO 



April 30, 1898 



ANEW MURINE OPOSSUM FROM MARGARITA ISLAND. 



BY OUTRAM BANGS. 



While on the Island of Margarita, Venezuela, in the summer 

 of 1895, Lieutenant Wirt Robinson, U. S. Army, collected five 

 murine opossums. Four of these he presented to the National 

 Museum at Washington and one to me. These specimens rep- 

 resent a very pallid insular race that may he known as— 



Marmosa robinsoni sp. now 



Type from Margarita Island, Venezuela, $ adult, Xo. 7749, coll. of E. 

 A. and 0. Bangs. Collected July 12, 1895, by Lieut. Wirt Robinson, U. S. 

 Army. Orig. No. 506. 



Gem nd characters. — Similar to M. murina, but much paler and more 

 yellow; black mark through eye less extensive; ear (in dried skins) 

 considerably smaller ; skull similar to that of M. murina. 



Color. — Upper parts, clay color, becoming paler and more yellowish on 

 sides ; sides of neck and top of nose back to between eyes dull buffy yel- 

 low ; black mark through eye less extensive and duller than in M. mu- 

 rina. Under parts, dull straw yellow to base of hairs; line of demarka- 

 tion between colors of upper and under parts much less distinct than in 

 .1/. murina; feet and hands dull yellowish white. 



Measurements. 



*Coll. of E. A. and O. Bangs. 



fColl. of National Museum, Washington. 



22— Biot. Soc. Wash., Vol. XII, 1898 



(95) 



