Species of the Famify Jcteridx. 165 



agrees in the dilated frontal shield^ naked nostrils^ long 

 wingSj and rounded tail. 



1. Cassidix oryzivora. 



Oriokis oryzivorus, Gm. S. N. i. p. 386. 



Cassidix oryzivora, Cab. Mus. Hein. i. p. 194; Cassin, Pr. 

 Ac. So. Phil. 1866, p. 416; Scl. P. Z. S. 1858, p. 98 (Mexico), 

 1859, p. 57 (Honduras), 1859, p. 140 (Ecuador), et Cat. A. 

 B. p. 142; Scl. et Salv. P. Z. S. 1864, p. 354 (Panama), 

 1867, p. 279 (Mosquitia), 1867, p. 573 (Para), 1867, p. 978 

 (Pebas), 1869, p. 252 (Venezuela), 1873, p. 185 (S. Peru), 

 1873, p. 267 (Upper Amazons), 1879, p. 510 (Antioquia), et 

 Nomeucl. p. 39; Salvin, Ibis, 1861, p. 353 (Centr. Am.), et 

 P.Z.S. 1870, p. 191 (Veragua) ; Salv. et Godm. Ibis, 1879, 

 p. 201, et 1880, p. 123 (Santa Marta) ; Berlepsch. J. f. O. 

 1873, p. 25] (South Brazil). 



Tordo grande, Azara, Apunt. i. p. 273. 



Cassicus ater, Vieill. Nouv. Diet. v. p. 363, et Enc. Meth. 

 p. 723 ; Cassin, Pr. Ac. Sc. Phil. 1866, p. 415 ; Pelz. Orn. 

 Bras. p. 201 ; Tacz. P. Z. S. 1877, p. 323 (W. Peru). 



Cassicus niger, Licht. Duubl. p. 19; Max. Beitr. iii. p. 1241 . 



Psarocolius palliatus, Wagl. Syst. Av. no. 4. 



Corvus (Cassidix) mexicanus, Less. Tr. d^Orn. p. 433. 



Cassidix mexicanus, Cassin, Pr. Ac. Sc. Phil. ]866, p. 416. 



Scaphidura barita et S. crassirostra, Sw. An. in Men. p. 301. 



Cassicus palliatus, Tsch. Faun. Per. p. 229. 



Scaphidura atra, Cab. in Schomb. Guiana, iii. p. 683. 



Quiscalus ater, Bp. Consp. p. 426 ; Burm. Syst. Ueb. iii. 

 p. 278. 



Cassidix vielloti, Cassin, Pr. Ac. Sc. Phil. 1866, p. 417. 

 Atro-violaceus ; colli plumis elongatis expansis ; rostro et 

 pedibus nigris : long, tota 14-0, alse 7*8, caudae rectr. 

 med. 6*1, ext. 5"3. Fejn. Mari similis, sed crassitie mi- 

 nore et ptilosi minus nitidS,. 



Hab. Central and South America, from S. Mexico to 

 Paraguay and S. Peru. 



Mus. P. L. S. et S.-G. 



I cannot agree with Cassin in dividing the different races 

 of this widely spread bird into distinct species. ^ 



