202 MARSUPIALIA. 
Colombia.*, and probably throughout the other countries of northern South America. 
In Costa Rica, where it is known to the inhabitants as Zorro de aqua (Water-Opossum), 
Dr. v. Frantzius considered it not to be rare, though the number of specimens which 
came under his own observation was not large*. In Guatemala Mr. Salvin did not 
obtain any specimens himself; but a drawing by Mrs. Salvin of an animal preserved in 
the Museum of the Sociedad Economica de Guatemala clearly represents this species. 
Mr. Sarg informs Messrs. Godman and Salvin that several pairs have been observed in 
the river of Coban, and two that he obtained were shot when playing on a stone in 
the water; they are supposed to feed on the crayfish (Cambarus) common in this river. 
In Brazil, Natterer informed Mr. Waterhouse, “the Water-Opossum feeds on Crus- 
tacea, and, doubtless, on other aquatic animals. One of his specimens was captured 
in the water alive, near Para, in a basket similar to those used in this country for 
catching eels ; it had made its way through the funnel-shaped opening, and could not 
return, thus proving that these animals are good divers” *. Other writers have stated 
that the Yapock is partly vegetarian in its diet ; but the observation appears to require 
confirmation. 
* Waterhouse, Nat. Hist. Mamm. i. p. 535. 
