118 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



darker and of much less extended area than in F. c. cinerem)\ under 

 tail-coverts rich lemon yellow; remiges (except tertials), primary 

 coverts, and alula black with gray edges; tertials and rectrices glossy 

 bluish or greenish black, the latter (except middle pair«) with a large 

 white patch on inner web, nearh^ midway between base and tip; bill, 

 legs, and feet black; length (skins), 199-211 (201.8); wing, 92-97 (91.2); 

 tail. 100-109 (101.1): exposed culmen, 9-10 (9.5); tarsus, 18; middle 

 toe, 12-14 (13.1).'^ 



Adult female. — Similar to the adult female of P. c. cinerem, but 

 colors darker throughout (except the yellow of under tail-coverts), the 

 grayish brown of' back slightly more olivaceous and abruptly con- 

 trasted with the gray of pileum and hindneck ; '" length (skins), 188-198, 

 (193.6); wing, 85-91 (92); tail, 88-100 (96.1); exposed culmen, 10; 

 tarsus, lT-19 (18) ; middle toe. 13.'^ 



Highlands of Guatemala (Coban l: Duenas: Volcan de Fuego; Volcan 

 de Agua ; Sumpango : ridge above Totonicapam ; Barranca Honda : 

 Quezaltenango) . 



PtUogonys cinereus (not of Swainson) Sclater and Salvin, Ibis, 1859, 13 (Guate- 

 mala); 1860, 31 ( Coban and Volcan de Fuego, Guatemala). — Sclater, Cat. 

 Am. Birds, 1862, 47, part (Guatemala). — Baird, Review Am. Birds, 1866, 

 412, part (Duenas, Guatemala). — Salvin, Cat. Strickland Coll., 1882, 147 

 (Guatemala). — Boucard, Liste Ois. Guat., 1878, 31 (Guatemala, 1,000-2,000 

 meters alt.). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 1883, 217, 

 part (Volcan de Fuego, Volcan de Agua, Duenas, Sumpango, Barranca 

 Hondo, and ridge above Totonicapam, Guatemala) . — Sharpe, Cat. Birds Brit. 

 Mus., X, 1885, 222, part (Volcan de Fuego, Guatemala). 



[PtUogonys'] cinereit.i Sclater and Salvin, Nom. Av. Neotr., 1873, 13, part 

 (Guatemala). 



P\tiliogonys] cinereus niolybdophanes Ridgway, Man. N. Am. Birds, 1887, 464, 

 footnote (Guatemala; coll. U. S. Nat. Mus.). 



Piiliogonys cinereus molyhdophancs Ridc^way, Man. N. Am. Birds, 1887, 592; 2d 

 ed., 1896, 614. 



PTILOGONYS CAUDATUS Cabanis. 

 COSTA RICAN PTILOGONYS. 



Adult male. — Forehead and crown pale gray (no. 7 or between nos. 7 

 and S), becoming paler anteriorlj"; narrow orbital ring yellow; rest of 

 head and neck, including crest, deep olive-yellow or light yellowish 

 olive-green, the throat paler and slightly tinged with gray; back, 

 scapulars, rump, upper tail-coverts, and wing-coverts uniform bluish 

 slate-gray: the chest, breast, and upper abdomen similar but rather 

 paler; sides and flanks yellowish olive-green; thighs and lower abdo- 



« Frequently the next to middle pair also lack any white spot. 

 & Seven specimeufi. 



''In the female of P. c. cinereus the brown of the back usually becomes gradually 

 grayer anteriorly, so that it grades almost insensibly into the gray of head and neck. 

 d Five specimens. 



