19. HETEROCEKCT/S. 325 



with olive-green ; cap and sides of head black, with a large central 

 patch of scarlet : beneath, throat white, pectoral band blackish ; 

 abdomen chestnut ; under wing-coverts and flanks dull cinereous ; 

 bill black ; feet brown : whole length 5-5 inches, wing 3 - 5, tail 2. 

 Hub. Upper Amazonia. 



a. <$ ad. sk. Upper Amazons (Bates). Sclater Coll. 



2. Heterocercus flavivertex. 



Elamia linteata, Strickl. Contr. Orn. 1850, p. 121, pi. 63 ( 2 ). 

 Heterocercus flavivertex, Pelz. Orn. Bras. pp. 125, 186 ; Scl. et Salv. 

 Nomencl. p. 55. 



Above olive-green ; coronal patch yellow ; ear-coverts blackish ; 

 wings and tail dark ashy, slightly edged with green : beneath, throat 

 white, abdomen chestnut, middle of belly and crissum paler ; under 

 wing-coverts and flanks cinereous ; bill blackish ; feet dark cinereous : 

 whole length 5*5 inches, wing 3 - 5, tail 2. Female. Above olive- 

 green : beneath lighter, throat cinereous, middle of belly ochraceous. 



Bab. Upper Amazonia. 



a, b. c? $ ad. sk. Eio Negro (Natterer). Sclater Coll. 



(Authentic specimens.) 



c, d. c? 2 a d. sk. Oyapoc, Cayenne. Sclater Coll. 



e,f. cf 2 a d- sk. Oyapoc, Cayenne. Purchased. 



g. $ ad. sk. Oyapoc, Cayenne. Salvin-Godman Coll. 



h. S jr. sk. Chaniicuros, Peruv. Amazons Salvin-Godman Coll. 



(Bartlett). 



i. 2 ad.sk. Chamicuros, Peruv. Amazons. E. Bartlett [P.]. 



3. Heterocercus aurantiivertex. (Plate XXIII.) 



Heterocercus aurantiivertex, Scl. et Salv. P. Z. S. 1880, p. 157 

 (Ecuador). 



Above olive-green, large coronal patch bright orange ; wings and 

 tail blackish, slightly edged with olive-green : beneath fulvous, throat 

 white, flanks passing into olivaceous ; bill horn-colour ; feet pale 

 brown : whole length 4-5 inches, wing 3'4, tail 2. 



Hab. Eastern Ecuador. 



a. Ad. sk. Sarayacu, Ecuador (Buckley). Sclater Coll. < 



b, c. Ad.sk. Sarayacu, Ecuador (Buckley). Salvin-Godman Coll. ( 



(Types of the species.) 



