306 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



yellow) on pileum and hindneck; bill black, with basal half of mandi- 

 ble bluish gray (pale grayish blue or bluish white in life?); legs and 

 feet grayish brown or horn color (bluish gray in life?). 



Young {first plumage). — Pileum and hindneck light yellowish olive- 

 green, becoming more yellow on forehead; back and scapulars dull 

 olive; rump and upper tail-coverts light olive-green or dull yellowish 

 olive-green; wing-coverts dusky olive, the middle series broadly the 

 greater narrowly tipped with dull yellow; remiges dusky, the tertials 

 broadly edged with dull yellow or pale yellowish olive, the longer 

 primaries narrowly edged with whitish; four middle rectrices dusky 

 olive, edged (especially at ends) with pale yellowish olive; rest of 

 rectrices paler olive, with pale yellow shafts and margins; under parts 

 and sides of head canary yellow, the middle of the chest with a 

 crescentic patch (not very distinct) of olive. 



AdniU raafe.— Length "(skins), 208.3-233.7 (219.5); wing, 86.9-94.5 

 (90.4); tail, 99.3-113.3 (104.6); culmen, from base, 20.6-22.9 (32.1); 

 depth of bill at base, 9.4-10.2 (9.9); tarsus, 27.9-30.5 (29); middle toe, 

 17.3-19.1 (17.8).' 



Adult female.— Jjength. (skins), 198.1-207 (202.4); wing, 83.8-89.4 

 (86.6); tail, 94.7-106.9 (100.8); culmen, from base, 20.3-21.6 (20.8); 

 depth of bill at base, 10.2-10.7 (10.4); tarsus, 28.3-28.5; middle toe, 

 17-18 (17.5).^ 



Southeastern Mexico, in States of Vera Cruz (Tlalcotalpam; Motzo- 

 rongo; Otatitlan; Cordova; Orizaba), Oaxaca (Minatitlan), Chiapas 

 (Guichicovi), Tabasco, and Yucatan (Calotmul), through Guatemala 

 (Choctum; Coban; Duenas) and British Honduras (Corosal; Belize) to 

 Honduras (Omoa; San Pedro). 



Ps\^arocolius\ mesomelas Waglee, Isis, 1829, 755 (Mexico). 



[Xanthomus] mesomelas Bonaparte, Consp. Av., i, 1850, 434 (Tabasco, s. e. 

 Mexico). 



Icierus mesomelas Sclatee, Proc. Zool. Soc. Lond., 1856, 301 (Cordova, Vera 

 Cruz); 1859, 58 (Omoa, Honduras), 293 (Esmeraldas, w. Ecuador); Cat. 

 Am. Birds, 1862, 133 (Orizaba, Vera Cruz); Ibis, 1883, 367 (monogr.); Cat. 

 Birds Brit. Mus., xi, 1886, 378 (Orizaba; Yucatan; Choctum, Vera Paz, 

 Guatemala; Corosal and Belize, British Honduras; San Pedro, Honduras).— 

 Salvin and Sclatee, Ibis, 1860, 34 (Duenas and Coban, Guatemala) .—Sola- 

 tee and Salvin, Proc. Zool. Soc. Lond., 1870, 837 (San Pedro, Honduras).— 



' Ten specimens. 

 ^ Two specimens. 



