388 



REVIEW OP AMERICAN BIRDS. 



[part I. 



Cyclorliis siilJflavescens. 



Cyclorhis subjiavescens, Cab. Journ. fur Orn. 1860 (May, 1861), 405 

 (Costa Rica ; September) ; 1861, 93 (spec, without dusky spot on 

 l5ill)._ScLATER, Catal. 1862, 359, No. 276*. 



Ilab. Costa Rica. 



(No. 34,669, 9 .) Upper part and sides of head, with the nape and the 

 chin, ash color ; the vertex soiled with rufous olive. A broad rufous band 

 from each nostril over and behind the eye (the two confluent anteriorly), 

 which is anterior to its middle point. Rest of upper parts olive green. Whole 

 throat and breast greenish-yellow, the flanks and inner lining of wings purer 

 yellow, as also to some extent a tinge on the crissum. Middle of belly white. 

 Bill pale above; lower jaw dark plumbeous, with whitish tip. Legs flesh 

 color. " Iris yellowish" {Carmiol). 



Second quill shorter than 10th ; 3d about equal to 8th. 



(No. 34,669, J.) Total length, 6.00; wing, 2.95; tail, 2.50; exposed por- 

 tion of 1st primary, 1.15, of 2d, 1.85, of longest (5th) (measured from exposed 

 base of 1st primary), 2.30; length of bill from nostril, .42, along gape, .80, 

 depth, .33 ; tarsus, .86 ; middle toe and claw, .66, claw alone, .27 ; hind toe 

 and claw, .64, claw alone, .30. 



Specimens differ iu the amount of yellow on the under parts, 

 which are sometimes entirely yellow (though paler behind), with 

 the middle of belly only white ; in other instances the middle of 

 breast, belly, and the crissilm are white. The flanks, however, are 

 always yellow. Autumnal specimens show a buflfy tinge in the white. 

 Of the six specimens examined, all have the plumbeous spot ou the 

 bill. 



This species is easily distinguished from Jlaviventris by its whitish 

 belly. It is most closely related to C. Jiavipectus in its flesh colored 

 legs and yellow breast, and in fact it is somewhat of a question 

 whether they are specifically distinct. The Costa Rica bird is 

 rather larger, and less brilliantly colored ; the ash of the head is 

 darker ; the yellow of breast more olivaceous, and perhaps extend- 

 ing a little farther back. The ochraceous wash of the hood is more 

 marked, although boJ:h species vary among themselves in this as well 

 as the other points. Better skins than those before me may, how- 

 ever, exhibit the differences more satisfactorily. 



