312 LANIID^. 



fuscous, producing a very indistinct collar. Culmen 0-58 inch, 

 wing 2-23, tail 1-6, tarsus U-64. (Mm. F.L.S.) 



The sexes are alike in plumage. 



Hub. Guiana. 

 a, b. S ad. sk. Roraima, Br itisli Guiana, July H. Whitely,Esq. [C.]. 

 14 & AprillS, 18S2. 



15. HylopMlus semicinereus. 



Hylophilus semicinereus, Scl. ^- Sah: P. Z. S. 1867, p._570, pi. xxx. 

 fif. 2 ; iid. Nomend. p. 12 ; Laijard, Ibis, 1873, p. 377 ; Scl. Ibis, 

 1881, p. 308. 

 Upper parts pale yeUowish olive ; hind neck and occiput grey, but 

 strongly washed with the colour of the back ; edge of wing, under 

 wing-coverts, and inner edge of remiges bright sulphur-yellow ; 

 rest of undcrparts, including the under tail-coverts, whitish grey ; 

 sides of upper breast washed with olive-yellow ; ear-coverts and 

 sides of head pale brownish grey. Culmen 0-5-0-55 inch, wing 

 2-1-2-2, tail 1-75, tarsus 0-70. 

 Bab. Lower A.niazons ; Para. 



16. Hylophilus flavipes. 



A. Southern Race. 



Hylophilus flavipes, Lafr. Sev. Zool. 1845, p. 342 ; Bp. C. A. i. p. 329 ; 

 'Scl P. Z. S. 1855, p. 144 ; Baird, Pev. Am. B. i. p. 375 ; Scl. Sf 

 Sah. Nomend. p. 12 ; Scl. Ibis, 1881, p. 309. 



B. Northern Race. 



Hylophilus vuidiflavus, Lmor. Ann. L%jc. N. Y. vii. p. 324 ; Scl. ^• 

 "Sa'v. P. Z. S. 1864, p. 348 ; Baird, Rev. Am. B. i. p. 380 ; Sah. 

 P. Z. S. 1867, p. 137, 1870, p. 184 ; Scl. Ibis, 1881, p. 309 ; sSalv. 4- 

 Godt}i. Biol. Centr.-Amer., Aves, p. 208, pi. xiii. fig. 1. 



A. Southern Race (H. flavipes). 



All the upper parts are olive-green, darkest on the crown and 

 upper back ; entire tail greyish olive ; inner web of remiges blackish, 

 broadly edged with the sulphur-yellow colour of the under wing- 

 coverts and the edge of the wing ; rest of underparts pale whitish 

 ochraceous, dull whitish on the throat ; bill pale horn-colour ; feet 

 yellow. "Wing 2-2 inches, tail 2. 



Hah. Colombia and Venezuela. 



B. Northern Race (H. viridiflavus). 



All the underparts, with the exception of the whitish throat, are 

 pale sulphur-yellow, slightly tinged with olive on the flanlvs. The 

 only difi'erencc between the two races is therefore the slight difference 

 in the colour of the underparts. Intermediate specimens are known 

 from Yenezucla. 



JIab. Verngua and Isthmus of Panama. 



