BIBD8 OF NORTH AND MIDDLE AMERICA. 



471 



C[erthia] famUiaris ocddentalis Bidgway, Man. N. Am. Birds, 1887, 558, foot- 

 note, part.— Hartbkt, Novit. Zool., iv, 1897, 139 (crit.).— Hellmaye, Tier- 

 reich, 18 Lief., 1903, 211. 



C[ertMa] f[amiliaris'] occidevialis Osgood, Auk., xyiii, 1901, 183 (diagnosis; 

 range).— Bailey (Florence M.), Handb. Birds W. TJ. S., 1902, 452. 



Certhia ocddentalis Rbichenow and Sohalow, Journ. fiir Orn., 1884, 419 (reprint 

 of orig. descr.). 



CERTHIA FAMILIARIS ALTICOLA Miller. 

 MEXICAlf CREEPER. 



Most like O. f. zelotes, among forms described above, but much 

 darker and decidedly larger; white streaks of pileum, etc., narrower 

 and more sharply defined; rump chestnut rather than tawny; under 

 parts white only on chin and throat, the rest of under surface pale 

 brownish gray, changing to buff on under tail-coyerts, the flanks tinged 

 with buff or rusty, sometimes with chestnut. 



Adult TOffife.— Length (skins), 127-130 (129);« wing, 64.5-67 (66.1); 

 tail, 57.5-64 (61.9);« exposed culmen, 13.5-15 (14.9);* tarsus, 15-16 

 (15.3);* middle toe, 11-12.5 (11.9);* hind claw, 8-9.6 (8.6).* 



Adult female.— 'Length, (skin), 122;<-- wing, 57-69.5 (62);'' tail, 58;« 

 exposed culmen, 13-15 (13.9);'^ tarsus, 16-15.5 (15. 2);'^ middle toe, 

 11-12.5 (ll.e);"* hind claw, 8-9 (8.6).'' 



Mountains of south-central Mexico, in States of Hidalgo (Tulalcingo; 

 El Chico), Vera Cruz (Las Vegas; Jalapa; near Cordova), Puebla 

 (Mount Orizaba), Mexico (Mount Popocatapetl), Michoacan(Nahuatzin), 

 southeastern Jalisco (Sierra Madre; Zapotitlan), Oaxaca (Cinco 

 Senores; Cerro San Felipe), and Chiapas (San Cristobal), and high 

 mountains of Guatemala (Hacienda Chancol; Volcan de Fuego, 10,000 

 to 12,000 feet; Puebla Vieja; Totonicapam; near Chilasco); northern 

 Nicaragua (Matagalpa)?.-^ 



a Five specimens. 



^ Seven specimens. 



« One specimen. 



<<■ Four specimens. 



« Three specimens. 



Two adult males from Guatemala and Chiapas compare in average measurements 

 with five from southern Mexico (States of Oaxaca, Vera Cruz, Puebla, and Hidalgo), 

 as follows: 



I am not able to appreciate any color differences. 

 / See Salvin and Godman, Ibis, 1892, 325. 



