40 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Hematopus galapagensis Ripaway, Auk, iii, no. 8, July, 1886, 331 (Chatham 
Island, Galapagos Archipelago; coll. U. 8. Nat. Mus.); Proc. U. S. Nat. Mus., 
ix, 1886, 325 (full descr.); xii, 1889, 116, 120, 123, 128 (James, Chatham, and. 
Indefatigable islands); xix, 1896, 621 (Albemarle, Hood, Chatham, Inde- 
fatigable, James, and Bindloe islands, Galapagos; synonymy; descr.; crit.; 
measurements).—SHARPE, Cat. Birds Brit. Mus., xxiv, 1896, 116 (Inde- 
fatigable Island).—Rotuscuitp and Harrert, Novit. Zool., vi, 1899, 186 
(Albemarle, Hood, Bindloe, James, Indefatigable, Tower, and Chatham 
islands; crit.); ix, 1902, 412 (Indefatigable, Albemarle, and Seymour islands; 
descr. young), 418 (Galapagos).—Girrorp, Proc. Calif. Acad. Sci., 4th ser., 
li, 1913, 47 (Albemarle, Barrington, Bindloe, Charles, Chatham, Gardner- 
near-Hood, Hood, Indefatigable, James, Narborough, Seymour, and Tower 
islands; Delano Rock and islets e. of Jervis Island; habits; crit.), 114 
(measurements). 
H[(xmatopus] galapagensis Ripaway, Man. N. Am. Birds, 1887, 182.—RoruscHitp 
and Harrert, Novit. Zool., vi, 1899, 203 (Galapagos). 
[Hematopus] galapagensis SHarPe, Hand-list, i, 1899, 147.—Forszs and Rosin- 
son, Bull. Liverp. Mus. ii, 1899, 63. 
Hematopus leucopus galapagensis SrEBoHM, Geog. Distr. Charadr., 1887, pp. xxii, 
307. 
Hematopus galapagoensis Baur, Am. Nat., xxxi, 1897, 783 (Charles and Gardner- 
near-Hood islands), 784 (‘Tower Island). 
HZMATOPUS BACHMANI (Audubon). 
BLACK OYSTER-CATCHER. 
Adults in breeding season (sexes alike).—Head, neck, and chest plain 
blackish gray (nearly dark mouse gray or between. that and iron 
gray), the feathers of chest and breast with a subterminal U-shaped 
bar of black; rest of plumage uniform dark sooty brown (nearest clove 
brown), the primary coverts, primaries, and rectrices darker; “bill 
vermilion, fading to yellow on the worn parts toward the end; edges 
of eyelids vermilion; iris yellow; feet white, slightly tinged with 
flesh color; claws yellowish, toward the end dusky.” . 
Adults in winter.—Similar to the summer plumage but feathers of 
abdomen narrowly tipped with white. 
Young.—(Not seen.) 
Downy young.—General color brownish gray, becoming darker on 
sides of throat and foreneck, the median portion of foreneck, chest, 
and sides lighter and clearer (less brownish) gray; a white spot on 
center of abdomen; occiput with large spots or blotches of black, 
back with two broad stripes of black, tail blackish, and upper surface 
in general minutely mottled or freckled with black. 
