Url C Ket ha 1, 
OrDER PYGOPODES. Divine Brirps. 
SUBORDER PODICIPEDES. GREBEs. 
Famity PODICIPIDA5. GreEBEs. 
Genus ZSCHMOPHORUS Couss. 
Aichmophorus Cours, Pr. Ac. Nat. Sci. Phila. April, 1862, 229. 
Type, Podiceps occidentalis Lawre. 
1. 4ichmophorus occidentalis (Lawr.). 
Western Grebe. 
Podiceps occidentalis LAwr. in Bairp’s B. N. Am. 1858, 894. 
Aichmophorus occidentalis Cours, Pr. Ac. Nat. Sci. Phila. 1862, 
229. 
[B 704, C 608, R 729, C 845. | 
GEOGRAPHIC DISTRIBUTION.—Western North America, eastward 
to Manitoba, south to central Mexico. 
Genus COLYMBUS Linnevs. 
Colymbus Linn. S.N. ed. to, I. 1758, 135. Type, by elimination, 
Colymbus cristatus LINN. 
SuBGENus COLYMBUS. 
2. Colymbus holbeellii (Retu.). 
Holbeell’s Grebe. 
Podiceps holbellii REINH. Vid. Med. 1853, 76. 
Colymbus holbellii Ripcw. Water B. N. Am. II. 1884, 428. 
