26 ANIMAL LIFE IN OKLAHOMA. 



POUCHED MAMMALS. ORDER MARSUPfALIA. 



Virginia Opossum. ('Pti'ssiim.) *Murine Opossum. 



Didelphis virginia/na. (Mouse Opossum.) 



Marmosa murine 



*A tropical species accidentally introduced in bananas. Has been taken 

 at Yukon (2 specimens) and at Norman (13 specimens). 



BIRDS. CLASS AVES. 

 GREBES. 



Pied-bill grabe. ("Hell-diver." Dab-chick.) 

 Podilymbus podiceps. 



LOONS. 



Great northern diver. (Loon.) 

 Gavia imber. 



GULLS AND TERNS. 



Franklin's rosy gull. Herring gull. 



Laws franUini. Lams argentatus. 



Least tern. 

 Sterna antillarum. 



CORMORANTS. 



Double-crestsd cormorant. 

 Phalacrocorax auritus. 



PELICANS. 



Great white pelican. 

 Pelecanus erythrorphynchos. 



DARTERS. 



Snake-bird. (Darter. Water-turkey. Anhinga.) 

 Anhinga anhinga. 



GEESE, DUCKS, AND SWANS. 



lAmeriean merganser. Canvasback. 



Mergus americamis. Marila valisineria. 



Hooded merganser. Lesser scaup duck. 



Lophodytes cucullatus. Marila affirm. 



Mallard. American golden-eye. 



Ana^ plaiyrhynchos. Giangula americana. 



Black duck. Buffhead. 



Anas rubripes. Charifonetta albeola. 



