202 



BULLETIN 50, TTNITED STATES NATIONAL MUSEUM. 



depth of bill at base, 11.9-13.2 (12.2); tarsus, 29.7-32.0 (30.8); middle 

 toe, 21.1-23.^ (22.()).' 



Adult female. — Dull Ijlack, the under parts, especially throat, some- 

 times dark sooty brownish; back and scapulars very faintly, the wings, 

 upper tail-coverts, and tail strongly, glossed with bluish green; neck 

 rufl's much less developed than in the male; length (skins), 165.1-205.7 

 (186.4); wing, 97.5-106.7 (102.9); tail, 64.0-74.7 (73.1); culmen, from 

 base, 19.8-21.3 (20.6); depth of bill at base, 10.4-11.2 (10.9); tarsus, 

 26.2-29.7 (27.9); middle toe, 19.8-21.8 (20.8).' 



Young male. — Dull sooty black or dark sooty, the feathers of the 

 under parts of the body with more or less distinct narrow margins of 

 paler; mandible brownish basally. 



Young female. — Paler and grayer than the young male; above sepia 

 or grayish sepia, beneath paler and grayer, with indistinct paler nar- 

 row margins to the feathers. 



Southern Texas (breeding north to San Antonio), through eastern 

 Mexico (States of Tamaulipas, Vera Cruz, Puebla, northern Oaxaca, 

 and Yucatan) and Central America to Veragua (to Isthmus of 

 Panama?). 



Molothrus xneus (not Psarocolius xneus Wagler) Sclater, Proc. Zool. Soc. Lond., 

 1856, 300 (Cordova, Vera Cruz); 1859, 365 (Jalapa, Vera Cruz); (?) 381 

 (Oaxaca); Cat. Am. Birds, 1862, 135 (Jalapa); Cat. Birds Brit. Mus., xi, 

 1886, 334, part (Orizaba and Jalapa, Vera Cruz; Oaxaca?; n. Yucatan; 

 Choctum and Dueiias, Guatemala; Orosi, Costa Rica; Calobre and Chitra, 

 Veragua). — Salvin and Sclater, Ibis, 1860, 34 (Duenas, Guatemala). — 

 Owen, Ibis, 1861, 61 (San Geronimo, Guatemala; descr. eggs). — Cabanis, 

 Journ. fiir Orn., 1861, 81 (San Jose, Costa Rica). — Cassix, Proc. Ac. Nat. 

 Sci. Phila., 1866, 18, part (Jalapa; Yucatan; Nicaragua; Costa Rica; Pan- 

 ama). — Lawrence, Ann. Lye. N. Y., ix, 1868, 104 (San Jose, Costa Rica). — 

 SuMicHRAST, Mem. Bost. Soc. N. H., i, 1869, 552 (hot and temp, regions, 

 Vera Cruz). — Salvin, Proc. Zool. Soc. Lond., 1870, 191 (Calobre and Chitra, 

 Veragua); Cat. Strickland Coll., 1882, 265 (Guatemala). — Merrill, Bull. 



' Fourteen specimens. 

 ^ Fourteen specimens. 



Yucatan specimens compare in average measurements with those from other locali- 

 ties as follows: 



