248 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



712 (Nicasio, Marin Co.)- — Anthoxy, Zoe, iv, 1893, 242 (base of San Pedro 

 Martir Mts., n. Lower California). — Fisher, North Am. Fauna, no. 7, 1893, 

 98 (s. fork Kern R. ; near San Bernardino, etc. ).— Grixxell, Pasadena 

 Acad. Sci., Pub. ii, 1898, 39 (Los Angeles Co., foothills, resid.). 



Peueea ruficeps Cooper, Proc. Cal. Ac. Sci., 1870, 71 (Tulare Valley). 



[Pcucasa'] ruficeps Coues, Key N. Am. Birds, 1872, 140. 



[Peuciea ruficeps] var. ruficeps Baird, Brewer, and Ridgway, Hist. X. Am. Birds, 

 ii, 1874, 38. 



P.[^eMCira] ruficeps Coues, Key N. Am. Birds, 2d ed., 1884,374, ]>art. — Ridgway, 

 Man. N. Am. Birds, 1887, 429, part. 



Ahnophlla ruficeps Ridgway% Auk, xvi, Jan., 1899, 81. — Americax Orxitholo- 

 GiSTs' Union Committee, Auk, xvi, 1899, 120. 



AIMOPHILA RUFICEPS SORORIA Ridgway. 

 LAGUNA SPARROW. 



Similar to A. r. ruficep!^ in coloration of upper parts, but chestnut 

 of pileuni somewhat lig-hter or clearer, supraloral line whiter, and 

 supra-auricular stripe lighter and g-rayer; smaller than ^1. v. scottii^ 

 with back, etc., less ashy, with chestnut streaks darker and much nar- 

 rower, and the under parts much more strongly tinged with Initf; 

 differing from all the other northern forms of the species in much 

 thicker and relatively shorter bill. Wing, 55.88-62.99 (60.20); tail, 

 60.96-65.58 (63.25); exposed culmen, 11. 43; depth of bill at base, 

 6.35-6.86 (6.60); tarsus, 20.32-20.57 (20.32); middle toe, 13.97-15.24 

 (14.73).^ 



Southern portion of Lower California, in mountains (Laguna; Vic- 

 toria Moimtains). 



Peuava ruficeps boucardi (not ZonotricMca houcardi Selater) Beldixg, Proc. U. S. 

 Nat. Mus., vi, 1883, 348 (Victoria iNIts., Lower Califoi-nia, above 2,500 ft.). 



P.[euciea] ruficeps boucardi RirxiWAY, Man. N. Am. Birds, 1887, part (Lower 

 California). 



Peucsea ruficeps (not Ammodromus ruficeps Cassin) Americax Orxithologists' 

 Union, Check List, 1886, no. '580, part ("Cape St. Lucas" ) . 



AiinophUa ruficeps soror/a Ridgway, Auk, xv, July, 1898 (pub. May 14, 1898), 226 

 (Victoria Mts., Lower California; U. S. Nat. Mus. ). — American Ornitholo- 

 gists' Union Committee, Auk, xvi, 1899, 120. 



AIMOPHILA RUFICEPS SCOTTII ( Sennett). 

 SCOTT'S SPARROW. 



Similar to A. r. sororki but larger, with more slender liill. the back 

 more broadly streaked with chestnut-brown, rump and edgings of 

 scapulars and interscapulars nmch grayer, and under parts less strongly 

 suffused with buff. 



AdMltmale.—\^Q\\g\h. (skins), 134.62-154.94 (143.51); wings, 63.50- 

 70.36 (66.04); tail, 66.04-74.17 (70.87); exposed culmen, 11.43-13.97 



I 



Three specimens, only one of them with sex determined. 



