94 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



C[rotophaga] maior Cabanis and Heine, Mus. Hein., iv, Heft 1, 1863, 99 (Guiana; 



Brazil). 

 [Crotophaga] maior Heine and Reichenow, Nom. Mus. Hein. Om., 1890, 204 



(Guiana; Brazil). 

 Crotophaga ani (not of Linnaeus) Vieillot, Gal. Ois., i, 1825, 35, pi. 43. 



CROTOPHAGA SULCIROSTRIS Swainson. 



GROOVE-BILLED ANI. 



Adults (sexes alike). — Maxilla with several distinct curved grooves 

 and ridges, parallel with curve of culmen; general color dull black, 

 faintly glossed with violet or violet-blue on wing-coverts, remiges, 

 and middle rec trices, still more faintly glossed with greenish on pri- 

 maries and under parts; feathers of head and neck rather broadly 

 edged with dull purplish bronze, the scapulars, interscapulars, and 

 smaller wing-coverts with a broad lunulate or U-shaped submar- 

 ginal mark of dull greenish bronze or bronze-green, the terminal 

 margin of each feather and a narrow anterior border to the bronzy 

 submarginal mark black; feathers of chest with similar but narrower 

 and less distinct markings; under surface of remiges and rectrices 

 glossy greenish or bluish black; bill black or brownish black, often 

 partly grayish brown or horn color, especially on upper half (more or 

 less) of maxilla; naked skin of loral and orbital regioift dull black; 

 iris dark brown; legs and feet black. 



Young. — ^Uniform brownish black, the secondaries and tail faintly 

 glossed with violet, the primaries with greenish or greenish blue. 



Adult male.— Lehgih (skins), 280-342 (303); wing, 128-157 (142.5); 

 tail, 160-197 (180.2); culmen, 25-30 (28.1); tarsus, 31-36 (34.1); 

 outer anterior toe, 22-25.5 (24. 2). « 



Adult female.— Length, (skins), 280-320 (301); wmg, 128-142 

 (133.9); tail, 160-182 (167.7); culmen, 25-29 (26.1); tarsus, 31-35.5 

 (33.6); outer anterior toe, 21-25.5 (23.3).^ 



