350 



mniottltidj:. 



tinge, and the middle of the bell}' showing distinctly white ; outer 

 webs of primaries and most of the secondaries yellowish green, giving 

 the wiug a general greenish appearance ; inner web of primaries 

 dark brown, apparently slate-colour in some lights ; under surface 

 of tail dull green ; eyelids white. Total length 5*50 inches, wing 

 2-50, tail 2-50, tarsus 0-75, bill 0-50, mid toe 0-40. (Oonj.) 



Female. General appearance of the male, but differs from it by 

 the underparts being tinged with olive, mixing with the grey, and the 

 top of the head green, showing the slate-colour faintly. {Cory.) 



Hub. S. Domingo. 



13. GEOTHLYPIS 



Type. 



Triclias, Sivahis. Zool. Journ. iii. p. 167 (1827, necGlog. 1827) G. trichas. 

 Geothlypis, Cab. Arch.f. Naturg. 1847, pp. 316, 349 G. trichas. 



Tail of Geothlypis trichas, to show rounded outline. 



Range. North America, Central America, and the whole of South 

 America, excepting Chili and Patagonia. 



Key to the Species. 



a. With a broad frontal band of black, succeeded 



by a pale band of bluish white or yellow across 



the crown. 



a'. Band across the crown bluish white or pale 



grey, skirting the black ear-coverts to the 



sides of the neck. 



a". Band across the crown pale grey, not 0-2 



inch broad ; upper surface dull olive .... 



b". Baud across the crown broader and whiter, 



about 0-3 inch broad; upper surface of 



body olive-yellowish mclanops, p. 355, 



b'. Band across the crown bright yellow beldingi, p. 356. 



h. With no pale bar across the crown. 



c'. Forehead black ; hinder head olive like the back, 

 c". Upper surface of body yellowish green; 

 wings externally like the back ; sides of 



* I have not identified the following reference :— 



Trichas formosa, " Sclater," Gray, Hand-l. B. i. p. 242, no. 3.'il2 (1869). 

 This may be intended for Oporornis formosa, but I cannot find that Dr. Sclater 

 ever placed the latter species in Trichas or Geuthli/pis. 



trichas, p. 351. 

 rostrata, p. 355. 



