350 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



Itza, Yucatan; spec). — Hellmayr and Conover, Cat. Birds Amer., i, No. 1, 

 1942,247 (syn.; distr.). 

 Colinus nigrogularis caboti Van Tyne and Trautman, Occ. Pap. Mus. Zool. Univ. 

 Michigan, No. 439, 1941, S, 6 (Chichen Itza, Yucatan; descr. ; plum.; meas. ; 

 distr.; crit.). — Hellmayr and Conover, Cat; Birds Amer., i. No. 1, 1942, 247, 

 footnote. 



COLINUS NIGROGULARIS PERSICCUS Van Tyne and Trautman 



Progreso Bobwhite 



Adult male. — Similar to that of Colinus nigrogularis caboti but paler 

 and less brownish, more grayish ; above, especially on the scapulars and 

 innermost remiges, very pale grayish; the white centers of the feathers 

 of the interscapular and upper back areas larger and their rufescent borders 

 averaging slightly paler ; tail paler — between mouse gray and light mouse 

 gray, and more abundantly flecked with grayish white ; feathers of thighs, 

 flanks, lower middle abdomen, and under tail coverts paler, less rufescent. 



Adult female. — ^Very similar to that of C. n. caboti but slightly paler 

 above, more grayish, less brownish ; the dark ventral barrings averaging 

 more brownish, less blackish. 



Other plumages apparently unknown. 



Adult male.— Wing 98-102 (100.1) ; tail 51.5-57 (54.4) ; culmen from 

 base 14.5-15.8 (15.1) ; tarsus 28.2-31.4 (30.0) ; middle toe without claw 

 24.1-27.5 (25.9 mm.). 37 



Adult female.— Wing 100-102 (101.1); tail 54-58.8 (56.5); culmen 

 from base 14.2-16 (15) ; tarsus 29-32 (30.2) ; middle toe without claw 

 24.1-26.4 (25.2 mm.). 38 



Range. — Resident in the arid region about Progreso, Yucatan. 



Type locality. — 5 kilometers south of Progreso, Yucatan. 



Eupsychortyx nigrogularis Cole, Bull, Mus. Comp. Zool., 1, 1906, 115, part (Progreso, 



Yucatan). 

 Colinus nigrogularis persiccus Van Tyne and Trautman, Occ. Pap. Mus. Zool. 



Univ. Michigan, No. 439, 1941, 4, 6 (S kilometers south of Prc^reso, Yucatan; 



descr.; plum.; meas.; distr.; crit.). 



COLINUS NIGROGULARIS NIGROGULARIS (Gould) 



Honduras Bobwhite 



Adult male. — Similar to that of Colinus nigrogularis caboti but much 

 darker above, much less grayish, more brownish, the white centers of the 

 interscapulars greatly reduced in size, and the blackish blotches on the 

 scapulars, back, and rump larger and darker ; below very similar to caboti 

 but averaging wider black margins on the feathers of the breast and ab- 

 domen. "Pileum brownish black, passing into rusty exteriorly, and bor- 



" Ten specimens. 

 ™ Five specimens. 



