92 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



CROTOPHAGA MAJOR Gmelin. 



GREATER ANI. 



Adults (sexes alike) . — Bill much longer than deep, with the elevated 

 ridge of culmen restricted to basal two-thirds or less, highest ante- 

 riorl}^; sides of maxilla with several more or less distinct longitudinal 

 ridges and alternating grooves; general color glossy blue-black or 

 blackish steel-blue," passing into a more greenish hue on proximal 

 portion of primaries and into dark violet or violet-blue on tail (espe- 

 cially the middle rectrices); feathers of pileum and sides of head 

 edged with dull bronzy, those of neck (all round) and throat more 

 broadly edged with bright greenish bronze or bronze-green, the 

 scapulars, interscapulars, lesser wing-coverts, and feathers of upper 

 chest broadly submargined with the same; under surface of remiges 

 glossy greenish blue (steel blue) or bluish green, of rectrices glossy 

 dark violet; bill, naked loral space, legs, and feet black; iris light 

 green with a narrow yellow ring round pupil, ^ pale naples yellow, <= 

 sulphur yellow, '^ or yellowish white to pea green.* 



Adult maZe.— Length (skins), 425-492 (459); wing, 184-216 

 (199.1); tail, 235-277 (262.4); culmen, 42-48 (45.5); tarsus, 41.5-48.5 

 (44.4); outer anterior toe, 27.5-33 (30.5)./ 



Adult female.— Length, (skins), 405-453 (436); wing, 183-200.5 

 (193.6); tail, 245-265 (255.4); exposed culmen, 38.5-45 (43.2); tarsus 

 40-47(43.3); outer anterior toe, 26-31 (28.4).^ 



a The color is more pronouncedly blue in fresh plumage, becoming duller (more 

 nearly black) when the feathers are old. 

 & According to Maximilian, 

 c C. H. C. Grant. 

 d Berlepsch and Hartert. 

 « Chubb. 



/ Fourteen specimens. 

 g Nine specimens. 



