660 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Caiherpes mexicanus Cooper, Orn. Gal., 3870, 66 (San Joaquin Valley; Calaveras 

 and Cosumnes rivers). 



Caiherpes mexicanus var. consperms (not of Ridgway) Henshaw, Kep. Cm. Spec. 

 Wheeler's Sur v., 1876, 231 (Walker's Basin, s. California). 



Caiherpes mexicanus, /3. conspersus Ridgway and Belding, Proc. U. S. Nat. Mus., 

 J, 1878, 402 (Murphys, Calaveras Co., California, Feb., Mar.). 



Caiherpes mexicamis conspersus ConES, Birds Col. Val., 1878, 164, part; Check List, 

 2d ed. 1882, no. 67, part.— Ridgway, Nom. N. Am. Birds, 1881, no. 59a., 

 part. — Amekican Ornithologists' Union, Check List, 1886, no. 717a, part. — 

 TowNSEND (C. H.), Proc; U. S. Nat. Mus., x, 1887, 226 (Baird and Mount 

 Shasta, n. California; habits; notes). 



Caiherpes conspersus Belding and Ridgway, Proc. TJ. S. Nat. Mus., i, 1879, 391 

 (Calaveras Co., California). 



Caiherpes mexicanus punctulatus Ridgway, Proc. U. S. Nat. Mus. , v, Sept. 5, 1882, 

 343 (Forest Hill, Placer Co., California; coll. U. S. Nat. Mus.); Bull. Nutt. 

 Orn. Club, vii, 1882, 257. — Reichenow and Schalow, Joum. fiir Orn., 1884, 

 422 (reprint of orig. deacr. ). — American Ornithologists' Union, Check 

 List, 2d ed., 1895, no. 7176, part. — Grinnell (J.), Pub. 2; Pasadena Acad. 

 Sci., 1898, 48 (Los Angeles Co., California; resident); Pacific Coast Avi- 

 fauna, no. 3, 1902, 68 (Mount Diabolo, Mount St. Helena, and w. slope Sierra 

 Nevada).— FisHBK (W. K.), Condor, ii, 1900, 138 (Mount St. Helena, Napa 

 Co., California).^ — Barlow, Condor, ii, 1900, 133 (near Berryessa, Santa 

 Clara Co.; resident). — Mailliahd, Condor, iii, 1901, 126 (San Benito Co., 

 California, resident). — Obeeholsee, Auk, xx, 1903, 197 (diagnosis; range). 



Clatherpesl mlexicanus'] punctulatus Coues, Key N. Am. Birds, 2d ed., 1884, 

 276.— Bailey (Florence M.), Handb. Birds AV. U. S., 1902, 445, part. 



Clatherpesl mexicanus punctulatus Ridgway, Man. N. Am. Birds, 1887, 549, foot- 

 note, in text. 



CATHERPES MEXICANUS POLIOPTILUS Oberholser. 

 INTERMEDIATE CANYON WREN. 



Variously intermediate in size and coloration between O. m. con- 

 sjpersus on the one hand and C. m. mexicamis and C. vi. aTbifrons on 

 the other, specimens from Texas and New Mexico connecting the first 

 and last named being slightly paler, those from Arizona, southern 

 California, Lower California, Sonora, and Chihuahua, connecting the 

 first and second, being darker. Measurements vary as follows: 



specimens FEOM TEXAS AND NEW MEXICO. 



Admit ?waZ<'.— Length (skins), 131-140 (136.3); wing, 60-67 (62.7); 

 tail, 50.5-58 (55.1); exposed culmen, 20-22(21); tarsus, 18-20.5 (19.1); 

 middle toe, 12.5-14 (13.5). (Six specimens.) 



Admit fenMle.—\i%-a^ (skins), 128-141 (131.8); wing, 58-63.5 (60.1); 

 tail, 50.5-55 (52.1); exposed culmen, 19-19.5 (19.2); tarsus, 18-19 

 (18.3); middle toe, 12.5-14 (13.2). (Six specimens.) 



SPECIMENS PROM ARIZONA." 



Acbdt male. — Length (skins), 119-134 (126.3); wing, 57-63(60.1); 

 tail, 49-56(52.1): exposed culmen, 19-21 (20.1); tarsus, 16.5-19(17.8); 

 middle toe, 12.5-14 (13.2). (Ten specimens.) 



" A considerable number of Arizona specimens, which I am imable to distinguish 

 from C. m. conspersus, are excluded here. 



