324 APPENDIX C. — BIRDS. 



27. FuLiGULA AFFiNis, Eyton. — Little Black-head ; Shuffler. 



Fuligula affinis, Eyton, Mon. AnatidsB (1838). 



Fuligula mariloides, Vig. Zoology of Beechy's Voyage (1839). 



Fuligula marila, Aud. Biog. III. 226, pi. 229. 



Fuligula minor, Giraud, Birds of Long Island, p. 323 (1844). 



Salt Lake, March 21, 1850. Found across the continent; very 

 common throughout the interior. 



28. Clangula albeola, Bp. — Butter-ball. 



Anas albeola, L. Syst. Nat. I. 199, 18.— Wils. VIII. 61, pi. 67, f. 2, 8. 

 Fuligula albeola, Aud. Biog. IV. 217, pi. 325. 



Provost Fork, February 22, 1850. Occurs from the Atlantic 

 to the Pacific. 



29. Pelecanus trachyrrhynchus, Lath. — White Pelican. 



Pelecanus Americanus, Aud. Biog. IV. 38, pi. 311 ; Syn. p. 309. 



The only specimen in the collection is in the form of a skeleton. 

 This wants the peculiar vertical lamina of the bill, but in all pro- 

 bability belongs to the above species, the female of which is usually 

 without this appendage. 



It is mentioned by Gambel as common on the coast of California 

 In winter it is found in the Southern Atlantic and Gulf States, 

 and to some distance up the Mississippi Valley. Exceedingly 

 abundant about Salt Lake. 



30. Phalacrocorax dilophus, Sw. — Cormorant. 



Pelecanus (Carbo) dilophus, Sw. F. B. A. II. 473 (1831). 

 Phalacrocorax dilophus et floriduus, Aud. 



Salt Lake. 



31. COLYMBUS GLACIALIS, L. — Loon. 



Colymbus glacialis, L. Syst. Nat. I. 221, 5. — Sw. Faun. Bor. Amer. II. 474. — 

 Nutt. Man. II. 573.— Aud. Biog. IV. 43, pi. 306; Syn. 353. 



This species of loon, shot on Salt Lake and brought in by Cap- 

 tain Stansbury, enables us to give to it a locality more western 



