20 CHECK-LIST OF NORTH AMERICAN BIRDS. 
519 a. Carpodacus frontalis rhodocolpus (Caz.). 
Crimson House Finch, 
Not valid, but a highly colored individual phase of No. 519. (Cf 
Ripew. Man. N. Am. B. 1887, 391, 594-) 
ITI. CHANGES OF NOMENCLATURE. 
02. Larus cachinnans Patt. Patias’s GuLt. This becomes 
Larus vegz (PaLMEN). 
Vega Gull. 
Larus argentatus var. vege PALM. Bidr. Sibirisk. Vega Exp. 1887, 
370. 
Larus vege STEJN. Auk, V. July, 1888, 310. 
Has. Bering’s Sea and adjacent waters, south in winter to California 
and Japan. 
[99.] estrelata gularis (PEALE). PEALE’s PETREL. This becomes 
4&strelata scalaris Brewsrt. 
Sealed Petrel. 
Estrelata scalaris BREWST. Auk, III. July, 1886, 300. 
Haz. Unknown, the single specimen obtained having been taken in 
Livingston Co., N. Y., in April, 1880. 
159. Somateria mollissima (Linn.). Emer. The American race is 
Somateria mollissima borealis A. E. Breum. 
Northern Eider. 
Somateria mollissima borealis A. E. BREHM, Verz. Samml. Eur. Vog. 
1866, 14. (Cf Ripew. Man. N. Am. B. 1887, 109.) 
Has. Northeastern North America, including Greenland ; south, in 
winter, to coast of Massachusetts. 
Suscenus Nyctherodius REICHENBACH (p. 138). This becomes 
SuBGENUS NYCTINASSA STEJNEGER. 
Nyctinassa STEJN. Proc. U. S. Nat. Mus. X. 1887, 295 (with the 
same type, /Vyctherodius being preoccupied). 
