150 Mr. P. L. Sclater on the 



Hab. Guiana, Venezuela et Amazonia. 



Mvs. P. L. S. et S.-G. 



I liave in my collection a female example of this bird ob- 

 tained by Natterer at Barra do Eio Negro in July 1833. I 

 have taken it to Berlin and compared it with the type of 

 L. gaianensls. As Herr v. Pelzeln had identified Natterer^s 

 bird by actual comparison with Spix's /. tanayrinus [cf. Orn. 

 Bras. p. 201) J I think we must adopt Spix^s name for this 

 species. 



In my American Catalogue I registered this species as 

 Quiscalus minor, supposing it to be Icterus minor, Spix, and 

 made it the type of a new subgenus, " Potamopsar ," but I 

 now consider Icterus minor, Spix, to be nothing more than 

 Molothrus bonariensis. 



This form of the Quiscalinse seems to be sufficiently cha- 

 racterized by the peculiar structure of the short erect frontal 

 feathers. Lampropsar dives and L. ivarcewiezi, which in the 

 ' Nomenclator ^ (following Cabanis) we arranged in this 

 genus, appear to go better by themselves and nearer the true 

 Quiscali. 



Genus II. Scolecophagus. 



Scolecophagus, Sw. Faun. Bor.-Am. Aves, p. 491 (1831) : type 



S. ferrugineus. 

 Euphagus, Cassin, Pr. Ac. Sc. Phil. 1806, p. 413 : type S. 



cyanocephalas. 



Clavis specierum. 

 Eostro longiore, tenuiore: pileo dorso CQiicolore. . . . {1) fernicjineus, 

 Rostro breviore, validiore : pileo purpureo (^2) cyanocejiliahiB, 



1. Scolecophagus ferrugineus. 



Oriolus ferrugineus, Gm. S. N. i. p. 393. 



Gracula ferruginea, Wils. Am. Orn. iii. p. 41, pi. 21. f. 3. 



Scolecophagus ferrugineus , Sw. Faun. Bor.-Am. ii. p. 286; 

 Baird, B.N.Am, p. 551 ; Scl. Cat. A. B. p. 140; Cassin, 

 Pr. Ac. Sc. Phil. 1866, p. 412; Baird, Brewer, et Ridgw. 

 N. A. B. ii. p. 203; Blakiston, Ibis, 1863, p. 82 (Sas- 

 katchewan) . 



