364 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



streaks and subterminal white spots on either web ; sides more rufescent — 

 hazel to dark hazel with the white spots and their black borders smaller 

 than in sonuini; middle of abdomen deep warm buff banded with widely 

 spaced fuscous black bars ; lower midabdomen, flanks, thighs, and under 

 tail coverts as in sonnini. 



Adult female. — Similar to that of C. c. sonnini but somewhat darker and 

 brighter cinnamon-brown to Prout's brown above; the breast feathers 

 with their brownish areas more rufescent ; the abdomen deeper buff, espe- 

 cially medially. 



Other plumages apparently unknown. 



Adult ntale.—Wmg 93-101 (96.5) ; tail 52.8-58.5 (56.8) ; culmen from 

 base 13-13.5 (13.2) ; tarsus 27-31 (29.1) ; middle toe without claw 23-27 

 (23.7 mm.).^^ 



Adult female.— Wing 96-102 (99.0) ; tail 50-60.4 (55.6) ; culmen from 

 base 12.5-14.5 (13.4); tarsus 28-31 (29.5); middle toe without claw 

 24-27 (25.5 mm.). ^« 



Range. — Resident in the arid tropical lowland plains of western Panama 

 in the Departments of Code, Veraguas, and Chiriqui. 



Type locality. — Agua Dulce, Code, western Panama. 



Enpsychortyx leucopogan (not Ortyx leiicopogon Lesson) Gould, Monogr. Odon- 



toph., pt. 3, 1850, pi. 13 (fig.; spec. coll. Lafresnaye). — Ogilvie-Grant, Cat. 



Birds Brit. Mus., xxii, 1893, 408, part (spec, p-r; Veraguas); Handb. Game 



Birds, ii, 1897, 130, part (Veraguas). — Salvin and Godman, Biol. Centr.-Amer. 



Aves, iii, 1903, 295, part ("Calobre," Veraguas). 

 Eupsychortyx leucopogon leiicopogon Todd, Auk, xxxvii, 1920, 203, pi. 5, fig. 4 



(w. Panama; monogr.). 

 Eupsychortyx leucotis (not Ortyx Iciicotis Gould) Salvin, Ibis, 1876, 379 



(Veraguas (Calobre?) ; crit.). 

 Coliniis leucotis panaviensis Dickey and van Rossem, Condor, xxxii, 1930, Ti 



(Agua Dulce, Code, w. Panama; type in coll. D. R. Dickey, now Univ. 



California at Los Angeles; descr. ; crit.). 

 Colinns cristatus panamensis Peters, Checklist Birds of World, ii, 1934, 50 



(distr.). — Griscom, Bull. Mus. Comp. Zool, Ixxviii, 1935, 303 (Panama; 



arid plains of Veraguas and Code only). — Hellmayr and Conover, Cat. Birds 



Amer., i, No. 1, 1942, 252 (syn.; distr.). 

 Colinus c{ristatus\ panamensis Conover, Proc. Biol. Soc. Washington, Ii, 1938, 



54 (spec; Aguadulce, Code; La Marca, La Colorado, Santiago, and Santa 



Fe, Veraguas; El Frances, Chiriqui; Panama). 



Genus ODONTOPHORUS Vieillot 



Odontophorus Vieillot, Analyse, 1816, 51. (Type, by monotypy, "Tocro Buff."^ 



Tetrao guianensis Gmelin:= Tc/rao tocro Herman.) 

 Dentophorus (emendation) Boie, Isis, xxi, Heft 3-4, 1828, 326, note. 

 Odonthophorus (emendation) Bonaparte, Giorn. Arcadico, xlix, 1831, 54. 

 Strophiortyx Bonaparte, Compt. Rend., xlii, 1856, 883. (Type, as designated by 



Grant, 1893, Odontophorns columhianus Gould.) 



' Five specimens. 

 ' Four specimens. 



