358 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



Adult male.— Wing 98.5-107.1 (102.9) ; tail 56.8-62.8 (59.9) ; culmen 

 from base 14.8-16.0 (15.6); tarsus 27.0-30.6 (29.2); middle toe with- 

 out claw 23.5-26.0 (24.7 mm.).^^ 



Range. — Grasslands and open country of the Arid Tropical Zone of 

 southeastern El Salvador, east of the Lempa River. 



Type locality. — San Carlos, Americae centralis Oceani Pacifici = I.a 

 Union, El Salvador. 



Adult female. — Wing 100.1-101.1; tail 55.6; culmen from base 15.6- 

 15.8; tarsus 27.6-29.1 ; middle toe without claw 22.4 mm. (2 specimens). 



Ortyx leucopogon Lesson, Rev. Zool., v, 1842, 175 ("San Carlo," Central America t= 

 La Union, El Salvador; coll. Paris Mus.?). — Des Murs, Icon. Ora, livr. 6, 

 1846, p. 36 and text, and table of contents. — Dickey and van Rossem, Condor, 

 xxxii, 1930, 72 (El Salvador, e. of Rio Lempa; crit. ; syn.). 



[Ortyx] leucopogon Gray, Gen. Birds, iii, 1846, 514; Handlist, ii, 1870, 273, No. 

 9791. — Reichenbach, Synop. Av., iii, Gallinaceae, 1848, pi. 194, fig. 1682. 



Eupsychortyx leucopogon Gould, Monogr. Odontoph., pt. 3, 1850, pi. 13 and text 

 ("San Carlos"). — Salvin and Gouman, Biol. Centr.-Amer., Aves, iii, 1903, 

 295, part (San Carlos). — Seth-Smith, L'Oiseau, x, 1929, 762 (care in 

 captivity). 



Eupsychortyx leucopogon leucopogon Todd, Auk, xxxvii, 1920, 203, part (San 

 Carlos; discussion of type). 



Coliniis leticopogon leucopogon Dickey and van Rossem, Condor, xxxii, 1930, 73 

 (El Salvador, e. of Lempa River). — Conover, Condor, xxxiv, 1932, 175 (El 

 Salvador ; Dept. Morazan, Divisadero ; Dept. La Union, Olomega ; Rio Goas- 

 coran; spec.).— Peters, Check-list Birds World, ii, 1934, 50 (distr.). — Dickey 

 and van Rossem, Birds El Salvador, 1938, 148, 149 (El Salvador; Lake Olomega, 

 Rio Goascoran, Divisadero; spec; crit.; habits; colors of soft parts; distr.). — 

 Friedmann, Proc. Biol. Soc. Washington, Ivii, 1944, 15. 



[Colinus] [leucopogon] leucopogon Sassi, Temminckia, iii, 1938, 305, in text (east- 

 ern El Salvador). 



Colinus cristatus leucopogon Hellmayr and Conover, Cat. Birds Amer., i. No. 1, 

 1942, 249 (syn.; distr.). 



"Ortyx albifrons Less." Lafresnaye, Rev. Zool., v, 1842, 130 (San Carlos; Province 

 of San Salvador; nomen nudum). 



COLINUS LEUCOPOGON HYPOLEUCUS Gould 



Salvadorean White-breasted Bobwhite 



Adult male. — Above very similar to that of the nominate race; below 

 differs in the great but very variable extension of the white posteriorly 

 over the breast and abdomen ; some individuals have almost the entire 

 underparts, except for the flanks, thighs, and under tail coverts, white, 

 while others have the breast and only a little of the upper abdomen 

 albescent ; similarly, in some birds these white feathers have brown bases 

 which show through, while in others the feathers are completely white; 

 soft parts as in the nominate form. 



■"" Six specimens. 



