54G BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



more than 45 degrees, the angle, howerer, rounded; mandible very 

 broad in middle portion, its rami rapidity contracted basally, where the 

 width is onlj' about one-half the length of the gonys, the latter straight 

 and but little longer than the rami; mandibular tomium highly arched, 

 but quite straight anterior to the summit of the arch. Nostrils small, 

 circular, in lower anterior part of nasal fossae. Wing rather long 

 (about three and two-thirds times as long as tarsus), rounded (ninth 

 primary shorter than fourth) ; primaries exceeding secondaries by more 

 than two-thirds the length of the tarsus. Tail more than two-thirds 

 as long as wing, even, the rectrices broad. Tarsus about two-thirds 

 as long as tail, its scutella indistinct; middle toe with claw shorter 

 than tarsus; lateral claws not reaching to base of middle claw; hind 

 claw shorter than its digit. 



Coloration. — Adult male olive-green above, with yellow lesser wing- 

 coverts; head, neck, and chest black; under tail-coverts rufous. 



Range. — Island of Jamaica, Greater Antilles. (Monotypic.) 



LOXIPASSER ANOXANTHUS (Gosse). 

 YELLOW-SHOTJLDEREB GRASSaUIT. 



Adult male. — Head, neck, chest, and upper breast uniform dull 

 black; under tail-coverts cinnamon- rufous; rest of under parts olive- 

 grayish, tinged with olive-green laterallj'; hindneck, back, scapulars-, 

 and rump uniform olive-green, the wings similar but duller, with 

 underlying portions of the feathers dusky; tail dusky, edged with 

 olive-green; lesser wing-coverts bright olive-yellow; maxilla blackish, 

 mandible more or less paler; iris brown; legs and feet " blackish flesh - 

 color" (Gosse); length (skins), 102.36-115.06 (106.93); wmg, 63.25- 

 65.53 (64.52); tail, 43.43-46.74 (44.70); exposed culmen, 8.38-9.40 

 (8.89); tarsus, 17.27-17.53 (17.27); middle toe, 11.68-12.19 (11.94).' 



Adult female. — '^woA^x to the adult male, but duller in color, the 

 head, neck, and chest similar in color to adjacent upper and lower 

 parts, but duller — sometimes dusky but never (?) blackish; under tail- 

 coverts usualljr ( ?) paler cinnamon-rufous, sometimes mixed with olive- 

 grayish; lesser wing-coverts yellowish olive-green; length (skins), 

 98.04-115.57 (105.92); wing, 58.67-60.96 (59.94); tail, 39.62-43.43 

 (41.91); exposed culmen, 8.89-9.66 (9.40); depth of bill at base, 7.62- 

 9.14(8.13); tarsus, 16.76-17.78 (17.27); middle toe, 11.43-12.19(11.94).* 



Young. — Similar to adult female, but still duller colored, the pileum 

 concolor with back, etc., the chin, throat, and chest light grayish or 

 olive-grayish like rest of under parts; under tail-coverts pale huffy, 

 usually (?) with olive-grayish mesial streaks; lesser wing-coverts 

 scarcely brighter than rest of wings. 



' Four specimens. ''Five specimens. 



