CYCLORHIS. 



38t 



Eab. 



— Ib. Catal. 1861, 45, no. 276.—? Solatek & Salvin, Ibis, 1, 1859, 13 

 (Guatemala). — Cyclorhis fl. Tschudi, Arohiv Naturg. 1845, 363 

 (Mexico). 



Southern Mexico and Guatemala. 



(No. 37,498, %.) Upper part and sides of head, with nape, ashy, with a 

 broad stripe of rufous brown from each nostril (the two confluent anteriorly) 

 over and beyond eye to nape (the eye considerably anterior to the middle of 

 the stripe) ; rest of upper parts olive green. Chin very pale ashy ; rest of 

 inferior surface, with inside of wings, bright yellow. Upper mandible pale ; 

 lower, plumbeous black, the end whitish. Legs apparently flesh color. " Iris 

 cherry red." Second quill shorter than the 10th ; 3d less than the 7th. 



(No. 37,498, % .) Total length, 6.10 ; wing, 3.25 ; tail, 2.95 ; exposed por- 

 tion of 1st primary, 1.25, of 2d, 2.00, of longest (5th) (measured from ex- 

 posed base of 1st primary), 2.55 ; length of bill from forehead, .85, from 

 nostril, .50, along gape, .85, depth, .37 ; tarsus, .92; middle toe and claw, .75, 

 claw alone, .30 ; hind toe and claw, .68, claw alone, .34. 



In the specimen described, and in fact in all before me, there is a 

 faint wash of ochraceous on the vertex, though in several, as No. 

 30,874, the color of the ash is nearly pure. In this same specimen 

 the ochrey color of the forehead extends over the lores, and involves 

 the lower eyelids to a greater degree than usual. The ash of the 

 chin is much restricted — being limited to the space between the 

 rami. 



There is not much variation in the extensive series before me. 

 The yellow is sometimes deeper in spring specimens ; in autumnal 

 it is paler, with a slight buffy tint. It is somewhat remarkable, 

 however, that of four (ruatemalan skins in the collection, three 

 should lack the black of the lower jaw. The fourth, from Coban, 

 a locality nearest of all to Mexico and Yucatan, is as described 

 above. I can detect no other difference. All other specimens have 

 the dark spot in question. 



The uniform yellow of the under parts sufficiently distinguishes 

 this species from all its allies. 



(37,499.) Iris brown; bill and feet flesh color. (30,874.) Eyes cherry red. (30,873.) Do. 



