20 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



more grayish, the middle rectrices darker terminally or subterminally; 

 rectrices next to middle pair mostly deep hair brown or fuscous, becom- 

 ing dull black subterminally and narrowly tipped with white; other 

 rectrices dull black passing into fuscous basally and broadly tipped 

 with white, the white tip about 17-32 mm. wide on inner web of 

 outermost rectrix (on which the outer web is white for a much 

 greater distance) to 10-19 wide on the third rectrix; suborbital and 

 malar regions, lower portion of auricular region, chin, throat, chest, 

 breast, and sides clear grayish white passing into pure white on 

 abdomen, flanks, and under tail-coverts; axillars and under wing- 

 coverts immaculate white; under surface of remiges (except outer- 

 most primary and distal portion of other remiges) dull buffy white to 

 pale dull buff; maxilla black, the lower basal portion (for more than 

 one-third the distance from rictus to tip) yellow; mandible deep 

 yellow; legs and feet horn color (bluish gray in life ?). 



Young. — Similar to adults but slightly browner above (especially 

 on greater wing-coverts and secondaries), anterior under parts more 

 strongly grayish (this color on side of head less strongly contrasted 

 with or less abruptly defined against the brown of pileum, etc.), and 

 lateral rectrices grayish brown broadly tipped with dull white. 



Adultfemale.— Wing, 133.5-141.5 (137.5); tail, 135.5-147.5 (141.5); 

 exposed culmen, 25.5-26 (25.7); tarsus, 23.5-24.5 (24); outer ante- 

 rior toe, 17-19 (18).° 



Guiana to southern Brazil; Sombrero, West Indies. (Possibly the 

 breeding bird of the West Indies.) 



Coccyzus julieni Lawrence, Ann. Lye. Nat. Hist. N. Y., viii, 1864, 42, 98 (Som- 

 brero, Lesser Antilles; coll. G. N. Lawrence). 



a Two specimens. 



Locality. 



Wing. 



Tail. 



Ex- 

 posed 

 culmen. 



Tarsus. 



Outer 



anterior 



toe. 



One adult female from Santarem, lower Amazon (type of C. 



Ii7ideni Allen) 



One adult female from Chapada, Mattogrosso 



One adult (sex not determined) from Rio Janeiro 



One young from Sombrero I., West Indies (type of C. julieni 



Lawrence) 



133.5 

 147.5 

 130 



128 



135.5 

 147.5 

 132.5 



129 



25.5 

 26 



21.5 



24.5 

 23.5 

 23.5 



22.5 



17 

 19 

 18 



15.S 



Allowing for the differences in 'coloration which distinguish young birds from adults 

 in all species of this genus, the type of Coceyzus julieni Lawrence, said to be from the 

 island of Sombrero, West Indies (but possibly wrongly accredited to that locality), 

 agrees very closely with the Brazilian specimens of C. euleri (all adults) examined. 

 It is possible that the so-called C. americanus which breeds in the West Indies is in 

 reality C. a. julieni, but all West Indian specimens of C. americanus examined by me 

 are either young birds or winter adults. 



