228 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



CYCLARHIS FLAVIVENTRIS FLAVIVENTRIS Lafresnaye. 

 MEXICAN PEPPER-SHRIKE. 



Adult male. — Forehead (at least laterally) and very broad superciliary 

 stripe, cinnamon-rufous; crown and occiput mouse gray or dull slate- 

 gray, sometimes (in younger birds?) tinged with cinnamon-rufous; 

 hindneck and sides of head, including auricular, suborbital, and malar 

 regions, lighter and clearer gray (cinereous or no. 6 gray);'^' lores cin- 

 namon-gra}'; rest of upper parts plain olive-green; chin whitish; rest 

 of under parts yellow (canary, sometimes approaching lemon or 

 gamboge), more or less tinged with olive on throat and chest; max- 

 illa cinnamon-brownish, whitish terminally and on tomia; mandible 

 dusky (bluish gray or gra^nsh blue in life), the terminal portion 

 whitish; iris reddish brown or brownish red; legs and feet pale brown 

 in dried skins, flesh-colored in life; length (skins), 147-160 (152.4); 

 wing, 75-81 (77.1); tail, 56-64 (60.6); exposed culmen, 16-18.5 (17.6); 

 depth of bill at nostrils, 8.5-10 (9.4); tarsus, 23-25 (23.9); middle toe, 

 11-13 (12.1).* 



Adult female. — Similar to the adult male and probably not always 

 distinguishable, but usually slightly duller in color, especially the 

 gray of the crown and occiput, which is more or less strongly tinged 

 with brown; length (skins), 152-162 (155.7); wing, 72-79 (76.5); tail, 

 60-63 (61.7); exposed culmen, 16.5-18 (17.6); depth of bill at nostril, 

 9.5-10 (9.8); tarsus, 22-25 (23.5); middle toe, 12-14 (13.5).'^ 



Young. — Similar to adults, but pileum more brownish gray (some- 

 times decidedly brown), superciliary stripe paler (ochraceous-bufl' or 

 cinnamon-buff), yellow of throat, chest, and breast more strongly 

 tinged with olive-green, and mandible entirely light brownish. 



Southern Mexico, in States of Vera Cruz (Mirador; Orizaba; Jalapa; 



a Of Ridgway's Nomenclature of Colors. 



& Fourteen specimens. 



<^ Four specimens. 



Specimens from different localities average in measurements as follows: 



Locality. 



Middle 



toe. 



MALES. 



Six adult males from Vera Cruz. . . 



Five adult males from Oaxaca 



One adult male from Chiapas 



Two adult males from Guatemala. 



FEMALES. 



Two adult females from Vera Cruz 

 One adult female from Oaxaca . . . 

 One adult female from Guatemala 



11.8 

 12 

 13 

 12. 5 



14 

 14 

 12 



