96 Bangs A New Murine Opossomfrom Margarita Island. 



Remarks. This insular murine opossum, which I have named in honor 

 of its discoverer, may be readily distinguished from M. murina by its 

 much paler, more yellow color and smaller ear. With M. murina mexi- 

 cana, M. roUnsoni agrees in having the middle of the face back to the 

 eyes decidedly paler than the rest of the upper parts and in having 

 small ears. It differs from M. mexicana quite as much in color as it does 

 from true murina, and can be told at a glance from either. 



