CATALOGUE OF VERTEBRATES. 619 



BRISMATURA, Bonap. 



B. rubida, Wils. Ruddy Duck. 



Male, top of head black ; lower parts whitish (brownish gray 

 beneath surface) ; upper parts reddish chestnut ; female and 

 young male, above grayish brown, mottled with buff; top of 

 head darker ; rest of head grayish white, with brownish stripe 

 on sides. Length, 16 inches or less. 



" More abundant during some years than others. Not unfre- 

 quent in Chesapeake Bay, where it is known as ' salt-water teal.' " 



NOMONYX, Ridg. 



N. dominicus, L. Masked Duck. San Domingo Duck. 



Accidental in various parts of Eastern United States ; differs 

 from the above in having a larger nail at tip of bill, not bent 

 back at tip, but nearly all visible from above ; there is a white 

 spot on wings, and young male and the female have two stripes 

 on sides of head. Length, 14 inches or less. 



CHEN, Boie. 



C. hyperborea, rar. nivalis, Forst. [Anser.) Greater Snow Goose. 



Pure white (or washed with reddish grayish in young) ; quills 

 black. Length, 30 to 38 inches. An arctic form, migrating 

 south in winter. Bill, 2h inches, robust, with prominent 

 lamellae. 



" Rare. Two or three together occasionally met with along 

 the coast in winter. Never seen inland, or on Delaware Bay." 



ANSER, Briss. 



A. albifrons, var. gambeli, Hartl. American White-fronted Goose. 

 Speckle-bill. [Laughing Goose.] 



Head grayish brown, forehead white ; lower parts grayish 

 white, spotted with black ; tail coverts white ; bill yellowish ; 

 feet light colored ; back dark. Length, 27 to 30 inches. 



" Like the preceding, is a rare species, met with only as a 

 straggler, in winter. Have seen one specimen, killed at Barne- 

 gat."— [C. C. A.] 



