No.i-'Ti. REVIEW OF THE llORXED LARKS— OBERHOLSER. 863 
from an intermediate locality the}' would be readilj'^ classed as inter- 
grades, though nearer (ij>/ir(H<t((, but coming from the opposite portion 
of the hitter's range, it is evident that no such disposition can })e made 
of them. They are apparently not diti'erent enough to warrant sepa- 
ration under a name of their own, so the only course is to consider 
them aberrant examples of (fj}/ir<isf<i. It is just such cases as this that 
render the identification and dilierentiation of the various horned larks 
so difficult. 
Thirty-eight specimens examined, from the localities mentioned 
below : 
Arizona. — Willcox;* Willow Spring;* Sulphur Spring;* Fort 
Bowie.* 
jVeio Mexico.— Xyog Spring, (Jrant County (United States and Mexi- 
can boundary line).* 
Chl/n«ih>(a.—¥^vYii\\ Play as Valley, near White Water;* White 
Water;* San Diego;* Chihuahua; Casas Grandes;* Balleza; Mesquite 
Springs (United States and Mexican boundary line).* 
C hahulla. — La Ventura. * 
Durango. — Durango. * 
OTOCORIS ALPESTRIS PALLIDA Dwight. 
Otocorts alpestrls pallida Dwight, Auk, VII, April, 1890, p. 154 (Townseiid, manu- 
script).— To wnsend, Proc. U. S. Nat. Mus., XIII, September, 1890, p. 138.— 
RiDGWAY, Man. N. Amer. Birds, 2d ed., 1896, p. 599. 
Chars, suhsjj. — Similar to Otocoris a. aphrasta^ but paler above, the 
nape less pinkish, the back less dusky. 
Measurements {1 male). — Wing, 102 mm.; tail, 60.5 mm.; exposed 
culmen, 11 mm. ; tarsus, 20 mm. ; middle toe, 10 mm. 
Type locality. — Direction Hill, betw^een Adair Bay and mouth of Rio 
Colorado, Sonora, Mexico. 
Geographical distrihution. — Region immediately adjacent to the head 
of the Gulf of California, Mexico. 
Description. — xididt male in hreediiig plumage. — Tj^pe, No. 117679, 
U.S.N.M; Direction Hill, between Adair Bay and the mouth of Rio 
Colorado, northwestern Sonora, Mexico, March 26, 1889; Charles H. 
Townsend. Occiput, cervix, bend of wing and upper tail-coverts 
bright vinaceous cinnamon; back, rump, wings and middle tail- 
feathers wood brown, the first two with a cinnamon tinge, the feathers 
of back and rump with somewhat darker centers, the wings and middle 
rectrices edged with paler; rest of tail brownish black, margined 
exteriorly with white; crown, horns, lores, cheeks, subauricular 
region and jugular crescent black; forehead, superciliary stripe, auric- 
ulars, chin and throat pale yellow, deepest on the two last; rest of 
lower surface white, the sides and flanks tinged with cinnamon and 
obsoletely streaked with dusky. 
