754 BULLETIN 50^ UNITED STATES NATIONAL MUSEUM. 



Downy young. — Upper parts uniform deep sooty grayish; under 

 parts, including malar region, immaculate white. 



Adult male. — Wing, 116.8 <*; tail, 35°; exposed culmen, 19.8-20 

 (19.9) ''; depth of bill at gonydeal angle, 5.1-5.3 (5.2) ; tarsus, 21.5-22.9 

 (22.2)^ middle toe, 20.3-2o".5 (20.4).^ 



Southern portion of Lower California, from Natividad Island 

 (lat. 28° N.) on Pacific side and from Esplritu Santo Island in Gulf 

 of California (lat. 24° 15' N.) to Cape San Lucas. 



Uria craveri Salvadori, Atti Soc. Ital. Sci. Nat., viii, fasc. iv. Feb. 8, 1866 



Eistr. 17 (Natividad Island, c Gulf of California; coll. Turin Mus.)- — Martens' 



Journ fur Orn., 1868, 70. 

 Brachyrhamphus craverii CouES, Proc. Ac. Nat. Sci. Phila., 1868, 66 (monogr.). 



Check List, 2d ed., 1882, no. 869. — Ridgway, Cat. Aquatic and Fish-eating 



Birds, 1883, 41. 

 B[rachyrhamphus] craverii Coues, Key N. Am. Birds, 2d ed., 1884, 814; 4th ed., 



1894, 814, figs, of head and leg (crit.). 

 Brachyrhamphtis craveri Streets, Bull. U. S. Nat.' Mus., no. 7, 1877, 32 (Isla Raza, 



Gulf of California, breeding; descr. nest and eggs; habits; crit.). — Ridgway, 



Proc. U. S. Nat. Mus., iii, 1880, 212 (Cat. N. Am. Birds, no. 758); v, 1883, 



5.34, footnote (Cape San Lucas); Norn. N. Am. Birds, 1881, no. 758. 

 [Brachyrhamphus] craveri Elliot, lUustr. New and Unfig. N. Am. Birds, ii, 



1869, introd. (fig. of head and leg; quotes orig. descr.; crit.). 

 [Brachyramphus] craveri Gray, Hand-list, iii, 1871, 100, no. 10815. 

 Br achyr am pMts craverii Baird, Brewer, and Ridgway, Water Birds N. Am., i, 



1884, 502. — American Ornithologists' Union, Check List, 3rd ed., 1910, 



p. 30. — Cooke, Auk, xxxiii, 1916, 80 (type locality probably Isla Raza, 



Lower California). 

 Brachyramphus craveri American Ornithologists' Union, Check List, 1886; 



and 2d ed., 1895, no. 26.— Bryant, Proc. Calif. Sc. Sci., 2nd ser., ii, 1889, 



251 (Cape San Lucas; Natividad Island). — Brewster, Bull. Mus. Comp. 



Zool., xli, no. 1, 1902, 16 (near San Jos6 Island, and Espiritu Santo Island, 



Lower California). 

 B[rachyramphus] craveri Ridgway, Man. N. Am. Birds, 1887, 15. 

 Micruria craveri Grant (O.), Cat. Birds Brit. Mus., xxvi, 1898, 595. — Anthony, 



Auk, xvii, 1900, 168, in text (crit.). 

 [ilicruria] craveri Sharpe, Hand-list, i, 1899, 131. 



Endomychura craveri Oberholser, Proc. Ac. Nat. Sci. Phila., June 2, 1899, 201. 

 [Endomychura] craveri Forbes and Robinson, Bull. Liverp. Mus., xii, no. 2, 



]899, 52. 

 [Synthlihorhamphus] ivurmizusume (not Uria wumizusume Temminck) Coues, 



Key N. Am. Birds, 1872, 344, part (supposed young or winter adult!). 



a One specimen. 



b Two specimens. 



A specimen of unknown sex (from Isla Raza, Gulf of California) measures as follows: 

 Wing, 117.3; tail, 34.3; exposed culmen, 20; depth of bill at gonydeal angle, 5.6; 

 tarsus, 23.4; middle toe, 22.1. No adult female examined. 



c According to Cooke, Auk, xxxiii, 1910, 80, the type locality is probalily Isla Raza, 

 Gulf of California, and not Natividad Island. 



