576 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Young.— Similar to the adult female, but wing bars deep buffy and 

 plumage of a much looser texture. (Immature males are variously 

 intermediate in coloration between the fully adult male, as described 

 above, and the adult female, two or three years being probably 

 required for attainment of the full plumage. Some freshly molted 

 adult males, especially those showing traces of immaturity, have the 

 under parts posterior to the black jugular band more or less buffy, 

 sometimes (juite strongly so. These occur in the same localities as 

 specimens with the same parts pure white. ) 



Valley of the lower Rio Grande, southern Texas (north to Hildago), 

 south through eastern Mexico (States of Tamaulipas, Nuevo Leon, San 

 Luis Potosi, Hidalgo, Guanajuato, Puebla, Vera Cruz, Oaxaca, Chia- 

 pas, etc.), Yucatan (including Mugeres and Meco islands), Guatemala 

 (Peten, San Geronimo, Totonicapam, Retalhuleu, etc.), British Hon- 

 duras (Belize, Manati, Corosal, etc.), Honduras (Medina, San Pedro, 

 San Pedro Sula, Truxillo, etc.), to western Costa Rica (San Jose, Grecia, 

 Turrialba, Irazu, Lagarto, Alajuela, Cartago, etc.).' 



Sp.[ermophila\ morelleti " Pucheran" Bonapaktb, Consp. Av., i, 1850, 497 (Guate- 

 mala; Paris Mus.). 



Spermophila morelleti Sclatbr, Proo. Zool. Soc. Lond., 1856, 302 (Orizaba, Vera 

 Cruz). — Lawrence, Ann. Lye. N. Y., viii, 1868, 102 (San Jos6 and Grecia, 

 Costa Rica). — Zeledon, Cat. Aves de Costa Rica, 1882, 8. 



Sp.[propkila\ moreWert Cab anis, Mus. Hein., i, June, 1851, 150 (Mexico). 



Sporophila morelleti Cabanis, Journ. fiir Orn., 1861, 4 (Costa Rica; synonymy).— 

 Stejxeger, Auk, ii, Jan., 1885, 47. — American Ornithologists' Union, Check 

 List, 1886, no. 602.— Stone, Proc. Ac. Nat. Sci. Phila., 1890, 212 (Orizaba, 

 Vera Cruz) .—Si.xgley, Rep. GeoL Surv. Texas, 1894, 373 (Hidalgo). 



S. Iporophila'] morelleti Ridgway, Man. N. Am. Birds, 1887, 450. 



IGjirinorhynchus] morelleti Gray, Hand-list, ii, 1870, 105, no. 7572. 



Spermophila moreleti Sclatee, Proc. Zool. Soc. Lond., 1859, 365 (Jalapa, Vera 

 Cruz), 378 (Playa Vicente, Oaxaca); Cat. Am. Birds, 1862, 105 (Orizaba; 

 Guatemala; Honduras); Ibis, 1871, 10 (monogr.). — Sclateb and Salvin, 

 Ibis, 1859, 17 (Belize, Brit. Honduras) ; Proc. Zool. Soc. Lond., 1870, 836 

 (San Pedro and Medina, Honduras).— Salvin, Ibis, 1859, 468 (SaiiGer6nimo, 

 Totonicapam, Retalhuleu, and Duenas, Guatemala); Cat. Strickland Coll., 

 1882, 222 (Guatemala) .— Baird, Brewer, and Ridgway, Hist. N. Am. Birds, 

 ii, 1874, 91, pi. 29, fig. 17.— Boucard, Proc. Zool. Soc. Lond., 1878, 58 (San 

 Jose, Costa Rica); 1883, 444 (Merida, Yucatan).— Merrill, Proc. U. S. Nat. 

 Mus., i, 1878, 129 (Fort Brown, Texas; habits; descr. nest and eggs).— Ben- 

 nett, Bull, U. S. Geol. and Geog. Surv. Terr., v, 1879, 393 (Lometa, Texas; 

 habits; crit. ; descr. young) . — Ridgway, Nona. N. Am. Birds, 1881, no. 252.— 

 CouES, Check List, 2ded., 1882, no. 296.— Salvin and Godman, Biol. Centr.- 

 Am., Aves, i, 1885, 352.— Sharpe, Cat. Birds Brit. Mus., xii, 1888, 123 



' It is remarkable that while in Mexico and thence to Honduras this species appears 

 to be confined to the Atlantic slope (except in Guatemala and perhaps in Chiapas 

 and Oaxaca) , it appears to skip Nicaragua altogether to reappear in western Costa 

 Rica, where, according to Cherrie (Auk, ix, 1892, 27), it occurs from the valley of 

 San Jos^ to the Pacific coast. If the species occurs anywhere in Nicaragua I have 

 been unable to iind any record to that effect. 



