366 IIROOKLYN IXSTITUTE MUSEUM. SCIEXCE BULLETIN 2. 6. 
TiGRisoMA LiNEATUM (Boddaert). 
Ardca lineata Bodd., Tabl. PI. Enl. 1783. p. 52. 
Tigrisoma brasiliensc Berlepsch, Ibis, 1884. p. 439 (Rio Apure). 
Tigrisoma lincatum Berlepsch & Hartert, p. 126. 
Xative name Pajaro Baca. Common, frequenting the thickl\- 
wooded banks of small streams flowing into the Orinoco. In life adult? 
have the iris bicolored, the inner part being chrome yellow which blends 
rather abruptly into a walnut brown on the outer half ; bill clove brown 
along the ridge of the culmen. merging into a mummy brown along the 
sides, bare 'skin on chin, throat and around eye sulphur yellow; bare skin 
at base of mandible citron yellow ; gonys horny straw yellow ; feet olive 
in front and olive green on the posterior half. 
Zebrilus pumilus (Boddaert). 
Ardca putnila Boddaert, Tabl. PI. Enl. 1783 : p. 54. 
Rare. Not taken or seen on my first expedition to the Orinoco. 
The fresh colors of an adult male taken at Agua Salada de Ciudad Boli- 
var, April II, 1905, were: Eye straw yellow; bill dusky above, pale 
yellowish horn color below ; feet anteriorly olive greenish, brighter lemon 
yellowish posteriorly. A single specimen was seen in the thickets form- 
ing the breeding ground of the Hoatzin at Caicarita, Caicara, July 18, 
1907. 
PALAiMEDEIDAE— THE SCREAMERS. 
Only one of the species of Screamers has been noted on the 
Orinoco. 
Palamedea cornuta Linnaeus. 
Palamcdea cornuta Linnaeus, Syst. Nat., Ed. XII: 1766: p. 232 (Brazil, 
Guiana). 
Anliima cornuta Stone, Proc. Ac. Nat. Sci. Phil.. 1913: P- 194 (]\Ianimo 
Riv.). 
I found the Horned Screamer abundant at Las Barancas, and Stone 
reported it very common on the Manimo River. 
PHALACROCORACIDAE— ANHINGAS, CORMORANTS, ETC. 
Anhinga anhinga (Linnaeus). 
Plotiis anhinga L., Syst. Nat. ed. 12. I. 1766. p. 218; Berlepsch & Hartert, 
p. 127. 
