310 Mr. P. L. Sclater on the Genus Hylophilus. 



olivacea unicolori ; subtus pallide sulpliureo-flavus^ gtila 

 grisescente; snbalaribus et remigum marginibus internis 

 ventri concoloribus ; rostro pallide corneo ; pedibus 

 flavicantibus : long, tota 4'3, alse 2'3^ Imjus rem. primi 

 1"3, caudffi 2. 

 Hab. Veragua et Isthm. Panama. 

 Mus. S.-G. 



Obs. Species H. flavipedi simillima et^ sicut videtur, 

 fere sequalis ; ventre flavo soliim diversa. 



I have grave doubts whether this bird is really dif- 

 ferent from H. flavipes, but will not for the present unite 

 them under one head. The only difference I can find is in 

 the paler^ more ^' washed-out ^^-looking hue of the yellow belly 

 which prevails in the Bogota skins^, though one of my spe- 

 cimens is intermediate in this feature between the normal 

 Bogota form and the Panama bird. 



III. List of Species unknown to the Author, 



The following species of Hylophilus are unknown to me, 

 and are not, I suppose, likely ever to be identified without 

 access to the types : — 



(1) Hylophilus flaveolus. 



Sylvia flaveola, Max. Beitr. iii. p. 719. 

 Hylophilus flaveolus, Burm. Syst. Ueb. iii. p. 110, et Baird, 

 Rev. A. B. i. p. 375. 



Obertheile hell graubraun, am Riicken rothlich-braun ; Un- 

 terriicken schon gelbrothlich ; Fliigel und Schwanz 

 rostrothlich-braun ; Kehle weisslich ; alle Untertheile 

 gelbrothlich, nach hinten hinab immer dunkler und 

 lebhafter werdend. 

 Hab. Bahia [Maximilian). 



(2) Hylophilus olivaceus. 



Hylophilus olivaceus, Tsch. Wiegm. Arch. x. pt. 1, p. 284 



(1844); Fauna Per. pp. 28, 195. 



H. affinis H. thoracico, Temm. PI. Col. 173. fig. 1. Supra 

 olivaceus ciuereo lavatus, superciliis flavisj remigibus 

 ardesiacis pogouio externo olivaceo-limbatis ; campterio 

 stramineo ; subtus flavus, crisso albicante ; rostro roseo ; 



