5. osTiNors. 317 



Cayenne. Purchased. 



Bartica Grove, Brit, (luiana Salvin-Godman Coll. 



( WJiitely). 



Camacusa, Brit. Guiaua Salvin-Godman Coll. 



( miitely). 



Roraima,Brit.Guiana(7f7«Yf/?/). Salvin-Godman Coll. 



Para,LowerAniazons( Tr«//ace). Salvin-Godman Coll. 



Maranham {Wendehorn). Salvin-Godman Coll. 



Barra, Rio Nej^-o (Natterer). Sclater Coll. 



Xeberos, Peruvian Amazons Salvin-Godman Coll. 



(Bartlett). 



Saraj-acu, Ecuador {Buckley). Salvin-Godman Coll. 



Bogota (?). Purchased. 



3. Ostinops atrovirens, 



Cassicus atrovirens, d'Orh. et Lafr. Syn. Av. ii. p. 1 ; d'Orb. Voy., Oia. 



p. 366, pi. 51. fig. 2 ; Bp. Consp. i. p. 427 ; Cass. Pr. Ac. Sc. Phil. 



1867, p. GO. 

 Ostinops atrovirens, Scl. et Salv. P. Z. S. 1869, p. 598, 1876, p. 16, 



1879, p. 608 ; nd. Nomencl. p. 35 (partim) ; Cab. Journ. f. O. 1873, 



p. 308} Scl. Ibis, 1883, p. 152; Tacz. Oni. Per. ii. p. 406. 



Olive-green, rump and crissnm brownish ; front more or less 

 yellow ; tail yellow, outer pair of rectrices, together with the outer 

 webs of the next pair, and the whole of the two middle pairs olive- 

 green ; other rectrices more or less tipped with olive-green ; bill 

 yellow ; feet black : whole length 14-3 inches, wing 8*4, tail G-5. 

 Female similar, but smaller. 



Hah. Bolivia and Southern Peru. 



The five specimens of this species before me, three from Bolivia 

 and two from Peru, agree generally in the characters above given ; 

 but in one of the Peruvian specimens the third and fourth pair of 

 rectrices have no green at the tips. In all cases, however, the 

 wholly olive-green colour of the four middle tail-feathers (as pointed 

 out by Dr. Cabanis) seems to discriminate 0. atrovirens from the 

 four nearly allied species which follow. 



a,b. c? 2 ad. sk. Tilotilo, Bolivia (Buckley). Salvin-Godman Coll. 



c. c? ad. sk. Simacu, Bolivia (Buckley). Salvin-Godman Coll. 



d. 2 ad. sk. Huiro, S. Peru {Whitely). Salvin-Godman Coll. 



e. 2 ad. sk. Huiro, S. Peru ( Whitely). Sclater Coll. 



4. Ostinops salmoni. 



Ostinops atrocastaneus, Scl. et Salv. P. Z. S. 1879, p. 509. 

 Ostinops salmoni, Scl. Ibis, 1883, p. 153, pi. vi. 



Above brownish chestnut, darker on the back of the head and 

 more fulvous on the rump ; front yellow ; wings externally blackish : 

 beneath dark blackish olive, flanks and crissum washed with ful- 

 vous ; thighs and uuder wing-coverts black; tail yellow, the outer 

 pair of rectrices and the outer webs of the next pair olive-green, 

 the middle pair and the inner webs of the pair next to the middle 



