'^J.6 Stone on the Species of Molotlirus. [October 



Passeri/ia discolor ViEiLL. N. D. d'H. N. XXXIV, p. 552 ; Enc. Meth. p. 



939- 

 Icterus maxillaris d'Orb. & Lafr. Sjn. Av. II, p. 6. — d'Okb. Voy., Ois. 



p. 369, tab. Hi, fig. 2. 

 Afolothrus maxillaris Cassin, Proc. A. N. S. Phila. 1S66, p. 21. 



Adult male, above shining purplisli black, with bluish green reflections 

 on the lower ruinp, wings and tail ; beneath purplish black, a little brighter, 

 with more or less of a golden reflection. Wing 4.25-4.50 in. Bill mod- 

 erate, rather short and conical ; culmen .73 in. ; depth through nostril, 

 .36 in; tail, 3.55 in. 



Female, ashy brown, paler beneath. 



Habitat. Eastern S. America; Argentine Republic to Brazil. 



Cyrtotes jnaxillaris (d'Orb.) seems to be merely this species 

 with the beak deformed. I have examined the two specimens in 

 the Academy collection and can find no other difference. 



Molothrus atronitens Cab. 



Molothrus atrotiitens Cab., in Schomb. Guia*. Ill, p. 682; Mus. Hein. I, 

 p. 193. — Phlz. Orn.Bras., p. 200. — Finsch, P. Z. S. 1870, p. 576. — 

 Berlepsch, Journ. f. Orn. 1873, p. 249.— Sclater, Ibis, 1884, p. 6; 

 Catal. Birds Brit. Mus. XI, p. 337. 



Lampropsar taitagriftus Cassin, Proc. A. N. S. Phila. 1866, p. 22. 



Lampropsar guiajieiisis Cassin, Proc. A. N. S. Phila. 1S66, p. 22. 



This species seems exactly like the preceding in plumage, but is distin- 

 guished by its smaller size while the bill is proportionately longer. Wing 

 3. So to 4.00 in., tail 3.35 in., culmen .70 in., depth of bill through the 

 nostril .30 in. 



Young biids appear much duller and were identified with 

 Lampropsar tanagrimis by Cassin (see above). 



M. atro7iitens seems to be the representative of ]\I. bo?iariensis 

 in northern South America, and will doubtless prove to be a 

 mere race of that species. 



Habitat. Venezuela, Guiana, and Trinidad. 



Molothrus cabanisii Cass. 



Molothrus (^Lampropsar') cabanisii Cassin, Proc. A. N. S. Phila. 1866, 



p. 32. 

 Molothrus cassini Finsch, P. Z. S. 1S70, p. 567. — Berlepsch, Journ. fiir 



Orn. 1873, p. 250. — Sclater, Ibis, 1884, p. 6; Catal. Birds Brit. 



Mus. XI, p. 337. 

 Molothrus discolor ^K\.\ . & Godm. Ibis, 1880, p. 123. — Scl. & Salv. P. Z. 



S. 1879, P- 509- {Non Cassin, Proc. A^. N. S. Phila. 1866, p. 20.) 



