398 



M 



R. O. THOMAS ON MAMMALS FROM ECUADOR. [May 4, 



the latter appear to be quite at the top of the skull. (3) In the 

 same view the upper edge of the middle of the zygoma is nearly 



Fig. 1. 



Skull of Bassarkyon alleni. 



Upper jaw of Bassaricyon alleni, 



horizontal iu B. gahbi, while it is evenly convex in B. alleni. (4) 

 Seen from above, the zygomata are nearly parallel in B. gahbi, but 



