252 BROOKI.YN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 



Pachyrhamphus cinereus (Boddaert). 



Pipra cinerea Bodd., Tab. PI. Enl. 1783. p. 43. 

 Pachyrhamphus cinereus Berlepsch & Hartert, p. 56. 



Eye dark seal brown ; bill plumbeous, in the male with the tip of the 

 maxilla black, in the female, tip of maxilla and ridge of culmen black ; 

 feet plumbeous. 



Pachyrhamphus marcidus Cherrie. 



Pachyrhamphus marcidus Cherrie, Sci. Bull. Bklyn. Inst. Mus. I. 1909. 

 p. 389 (Type 9 , Las Barrancas, delta region, Orinoco River, Ven- 

 ezuela) . 

 Only two specimens secured, both from the same locality, one day 



apart. 



Pachyrhamphus polychropterus nicer (Spix). 



Pachyrhynchus niger Spix, Av. Bras. II. 1825. 1829. p. 33, PL 45, fig, i. 

 Pachyrhamphus niger Berlepsch & Hartert, p. 56 (Ciudad Bolivar, 



Altagracia, Caicara, Perico and Maipures River, Orinoco; Suapure 



and La Pricion, Caura River, Venezuela). 



Not uncommon in the low thick underbrush bordering heavy timber 

 on one hand and open savanna on the other. Found all along the river 

 from the delta region at Las Barrancas at least as far as San Fernando 

 de Atabopo above the falls. 



The food consists apparently of about equal parts of insects and 

 small fruits. 



In the male the eye is seal brown ; bill plumbeous black at tip ; feet 

 slate grey ; female, eye seal brown ; bill above black, mandible whitish at 

 base, slate grey at the tip ; feet slate grey. 



Considerable individual variation exists in the amount of greyish 

 mottling on the under surface, two out of four adult males having 

 narrow ill-defined greyish shaft streaks on the chin and throat. A speci- 

 men from Trinidad has the general under surface lighter grey, but 

 with less distinct mottling. A specimen from Cayenne is nearly uni- 

 form sooty black with very faintly indicated greyish mottling on the 

 belly. The amount of grey on the rump is also extremely variable, in 

 some examples scarce a trace being visible, the rump being nearly 

 uniform black like the back. 



