208 VIREONIDA, 
pallide brunnea; subtus flavicans, gutture grisescenti-albo, pectore et lateribus ochracescenti-fusas ;_ rostro 
corneo, pedibus corylinis. Long. tota 4-3, ale 2-2, caude 1-75, rostri a rictu 0°65, tarsi 0-65. (Deser. 
maris ex Choctum, Guatemala. Mus. nostr.) 
Hab. Mexico, Playa Vicente (Boucard'), Oaxaca?+; GuateMaLa, Choctum %, Chisec 
(0.8. & F. D. G.); Costa Rica, Angostura (Carmiol*?); Panama, Bugaba (Arcé>), 
H. ochraceiceps has a very similar range to that of H. decurtatus ; but, though probably 
more common in the eastern parts of Southern Mexico, it has not yet been detected on 
the isthmus of Tehuantepec, nor, indeed, on the shores of the Pacific anywhere in its 
range until we reach its extreme limit on the slopes of the Volcan de Chiriqui. It was 
first discovered by M. Boucard at Playa Vicente in 1859 1, and in the following year we 
obtained several examples from the forests of Northern Vera Paz, and in 1862 observed 
it ourselves in this district, the only one in Guatemala in which we know it to occur. 
Here it frequents the same woods as H. decurtatus, the habits of the two birds being 
quite similar.. The sexes are alike in plumage. 
4. Hylophilus viridiflavus. (Tab. XIII. fig. 1.) 
Hylophilus viridiflavus, Lawr. Ann. Lyc. N. Y. vii. p. 8247; Scl. & Salv. P. Z. 8S. 1864, p. 3487; 
Baird, Rev. Am. B.i. p. 380°; Salv. P. Z. 8. 1867, p. 1387*; 1870, p. 184°; Scl. Ibis, 
1881, p. 309°. 
Supra saturate olivaceus, dorso medio dilutiore ; alis nigricantibus, extus dorso concoloribus; cauda fuscescenti- 
olvacea unicolori; subtus pallide sulphureo-flavus, gula grisescente; subalaribus et remigum marginibus 
internis ventri concoloribus ; rostro pallide corneo; pedibus flavicantibus. Long. tota 4:3, alee 2:3, cauds 
2:0, rostri a rictu 0-6, tarsi 0°7. (Descr. maris ex Panama. Mus. nostr.) 
Hiab. Panama, Bugaba®, Santa Fé 4 (Arcé), line of railway (M‘Leannan 12, Hicks). 
This bird is very closely allied to a Colombian species, H. flavipes, Lafr..—so much so 
that their distinctness is open to doubt. Mr. Sclater in his recent monograph 6 
reluctantly kept them apart, stating at the same time that the only difference he could 
detect consisted in the paler, more faded hue of the yellow belly of the Colombian 
bird, a Venezuelan example of H. flavipes being still more difficult to distinguish. 
With no additional materials to throw further light on the question, we follow 
Mr. Sclater’s lead. 
H. viridiflavus is easily recognized from the other Central-American species by its 
yellow legs, which it has in common with H. flavipes. The back is wholly olivaceous, 
also a distinguishing character so far as Central America is concerned. 
This Hylophilus was discovered in 1861, by M‘Leannan and Galbraith, on the line of 
the Panama railway, the latter remarking that it was rare, only one having been 
obtained in the jungle. Since then Mr. Hicks also observed it®, and a few specimens 
have reached us from our collector Arcé from more western parts of the State of 
Panama ‘®, 
