30 CHECK-LIST OF NORTH AMERICAN BIRDS. 
Rance.— Aleutian Islands east to Glacier Bay, Alaska, and Kam- 
chatka and northern Japan. 
Supcenus ENDOMYCHURA OBERHOLSER. 
Endomychura OBERHOLSER, Proc. Acad. Nat. Sci. Phila., 1899, 201. 
Type, by orig. desig., Brachyramphus hypoleucus XANTUS. 
Brachyramphus hypoleicus XanTus. Xantus’s Murrelet. ([25.] 
Brachyramphus hypoleucus Xantus, Proe. Acad. Nat. Sci. Phila., 1859, 
299. (Cape San Lucas, Lower California.) 
RaANGE.— Coasts of California and Lower California, from Mon- 
terey Bay to Cape San Lucas, formerly breeding as far north as 
Santa Barbara Islands. 
Brachyramphus cravérii (SALVADORI). Craveri’s Murrelet. ([26.] 
Uria craverit SALVADORI, Atti Soe. Ital. Sei. Nat., VIII, 1865, 387. (Nati- 
vidad Island, Gulf of California.) 
RancGe.— Lower California from Natividad Island (lat. 28°) on 
the Pacific and from Espiritu Santo Island in the Gulf, south to Cape 
San Lucas. 
GrENusS CEPPHUS Patuas. 
Cepphus Pauuas, Spic. Zool., I, Fase. v, 1769, 33. Type, by monotypy, 
Cepphus lacteolus Patuas = Alca grylle Linnaus, albino. 
Cépphus grylle (LinNa&us). Black Guillemot. [27.] 
Alca grylle LINNaUus, Syst. Nat., ed. 10, I, 1758, 180. (Southern Sweden.) 
Rance.— Coasts of eastern North America and northwestern 
Europe. In America breeds from southern Greenland and Ungava 
to Maine; winters from Cumberland Sound south to Cape Cod 
and casually to New Jersey. 
Cepphus mindti (Manpr). Mandt’s Guillemot. [28.] 
Uria mandtii “Licut.’’ Manpt, Obs. Hist. Nat. Itin. Groenl., 1822, 30. 
(Spitzbergen.) 
