BIRDS OF NORTH AND MIDDLE AMERICA. 593 
Glaucus leucopterus Brucu, Journ. fiir Orn., 1853, 101. 
[Leucus] leucopterus Bonaparte, Compt. Rend., xlii, 1856, 770; Consp. Av., ii, 
1857, 217.—HeIneE and ReicHEenow, Nom. Mus. Hein. Orn., 1890, 358. 
Leucus leucopterus OLPHE-GALLIARD, Orn. Eur. Occid., fasc. x, 1886, 47. 
Larus-(Leucos) leucopterus Drostz, Vogelw. Borkum, 1869, 357. 
Larus glaucoides Meyer, Taschenb., Zusitze, iii, 1822, 197 (Iceland and coasts of 
the North and Baltic Seas).—Borr, Isis, 1822, 562.—Temmincx, Pl. Col., 
livr. 77, 1828, introd. Larus. 
Laroides glaucoides Breum, Isis, 1830, 993; Vég. Deutschl., 1831, 744; Nauman- 
nia, 1855, 294. 
Larus moltke Terumann, Dan. og Isl. Fugl., 1823, 159. 
Larus arcticus Macettuivray, Mem. Wern. Soc.,-v, pt. i, 1824, 268 (Greenland). 
[Leucus] arcticus Bonaparte, Consp. Av., ii, 1857, 216. 
Larus islandicus EpMonston, Mem. Wern. Soc., iv, 1823, 506 (not of p. 185, 
which=JL. glaucus).—FLemine, Brit. Anim., 1828, 139.—Ss.y, Brit. Birds, 
ii, 1833, 501, pl. 98.—Jenyns, Man. Brit. Vertebr., 1835, 279.—GouLp, 
Birds Europe, v, 1837, pl. 433 and text; Birds Great Brit., v, 1873, pl, 58 
and text.—Merver, Brit. Birds, vii, 1857, 150, pl. 308.—Fr1LpEN, Zoologist, 
1872, 3289 (Faroe Islands). 
Larus icelandicus YARRELL, Brit. Birds, iii, 1843, 456; 2d ed., iii, 1845, 575.— 
Tuompson, Birds Ireland, iii, 1851, 385.—Gray (R.), Birds West Scotl., 
1871, 484. 
[Leucus] minor Bonaparte, Compt. Rend., xlii, 1856, 770. 
[Leucus leucopterus] a minor Bonaparte, Consp. Av., ii, 1857, 217 (Iceland). 
Laroides subleucopterus Breum, Isis, 1830, 993; Vog. Deutschl., 1831, 746; Nau- 
mannia, 1855, 294. 
[Larus (Glaucus)] glacialis (not of Brehm, 1824) Bruca, Journ. fiir Orn., 1853, 101. 
[Zarus (Laroides)] glacialis Brucu, Journ. fiir Orn., 1855, 282. 
LARUS KUMLIENI Brewster. 
KUMLIEN’S GULL. 
Similar to L. leucopterus, but adults with four outer primaries 
with a subterminal space of deeper, more brownish, gray on outer 
webs, the second, third, and fourth, second and third, or third and 
fourth also with a subapical band of the same color; the young 
decidedly darker than that of L. leucopterus, and with bill blackish 
except at base. 
Adults in summer (sexes alike).—Head, neck, rump, upper tail- 
coverts, tail, and entire under parts, including axillars and under 
wing-coverts immaculate pure white; back, scapulars, and wings 
uniform pallid to pale neutral gray, the secondaries and five or six 
proximal primaries broadly and rather abruptly tipped with white; 
four to five distal primaries broadly and abruptly tipped with white, 
the second, third, and fourth (from outside), second and third, or 
third and fourth, with a subterminal band (usually extending across 
both webs but sometimes confined to inner web) of brownish gray, 
those on the second or fourth (or both) sometimes imperfectly 
developed or obsolete, more rarely only that on third complete; 
40017—19—Bull. 50, pt 8——39 
