44 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



and color of upper parts appreciably lighter (less castaneous) ; similar 

 also to C. r. gracilis," of western Colombia to western Ecuador, but 

 coloration decidedly darker. 



Adults (sexes alike) .—General color of upper parts plain rich, reddish 

 brown (between chestnut and bay), becoming more or less distinctly 

 lighter and more cinnamomeous on forehead, darker (liver brown or 

 carob brown) on upper tail-coverts, the remiges passing terminally into 

 grayish brown with a faint bronzy gloss; tail dark bay, becoming 

 darker subterminally, all the rectrices tipped with white, this increas- 

 ing in width from the middle to the outermost rectrices; sides of head 

 and neck similar in color to pileum, lightening into dull tawny, or 

 between tawny and russet, on chin, throat, and chest; rest of under 

 parts light drab or ochreous gray on breast, passing through brownish 

 gray (nearly mouse gray) on abdomen and flanks into brownish black 

 or very dark sooty brown on under tail-coverts; under surface of 

 rectrices (except white tip) blackish brown, becoming more casta- 

 neous basally; bill yellowish (yellow or yellowish green in life) ; iris 

 and bare orbital space red; legs and feet grayish dusky (in dried skins). 



Young.— Much duller "in color than adults; above mars brown, 

 darker on tail (especially toward tip), more rufescent on remiges; 

 throat and chest light brown (dull verona brown) ; rest of under parts 

 sooty gray, darker on under tail-coverts; rectrices without white tips. 



Adult male.— Length, (skins), 240-267 (255); wing, 101-108 (103.8); 

 tail, 145-154 (148.7); exposed culmen, 18-19.5 (18.8); tarsus, 24-26.5 

 (25.8); outer anterior toe, 17-19 (18.1). 6 



Adult female.— Length (skins), 250-266 (258); wing, 101.5-104.5 

 (102.7); tail, 146-157 (153.1); exposed culmen, 18-19 (18.6); tarsus, 

 26-27.5 (26.7); outer anterior toe, 17.5-19 (18.1). c 



o Piaya rutila (not Cuculus rutilus Illiger) Sclater, Proc. Zool. Soc. Lond., 1860, 285 

 (Babahoyo, w. Ecuador), 297 (Esmeraldas, w. Ecuador). — Piayaminuta (not Cocq/zus 

 minutus Vieillot) Sclater, Cat. Am. Birds, 1862, 322, part (Babahoyo); Shelley, Cat. 

 Birds Brit. Mus., xix, 1891, 378, part. — C[ocq/zusa] gracilis Heine, Journ. fur Om., xi, 

 Sept., 1863 (published November, or later), 356 (Esmeraldas, w. Ecuador; coll. Heine 

 Mus.?). 



& Eight specimens. 



c Five specimens. 



