Species of the Family Icteridae. ] 63 



Nigerrimus umcolor; rostro albo, pedibus nigris : long, tota 

 11, alse 4'8, caucUe 4*5. Fern. Mari similis, sed minor : 

 long, tota 8-5, alre 4'4, caudae 4'3, 



Hab. Paraguay (Azara) ; Buenos Ayres (Haslehurst) ; 

 Brazil,, Cuyaba andMatto-grosso (Natt.) ; Ceara (Jesse) ; Upper 

 Amazonia, Nauta (Bartlett) Pebas (Hauxwell) ; Bolivia, 

 Yuracares (Orb.). 



11. CASSICUS HOLOSERICEUS. 



Sturnus holosericeus, Licht. Preis-Verz. Mcx. Vog. p. 1 ; 

 Cab. J. f. O. 1863, p. 55. 



Cacicus holosericeus, Salvin, Cat. Strickl. Coll, p. 263. 



Amblyramphus prevostii, Less. Cent. Zool. pi. 54. 



Aniblycercus nigerrirnus, Cab. Mus. Hein. p. 190 (note). 



Cassiculus prevostii, Bp. Consp. p. 428; Sclater, P. Z. S. 

 1856, p. 301, 1859, pp. 57, 365, 380, et 1860, pp. 276, 293, 

 1864, p. 174, et Cat. A. B. p. 129 ; Sclat. et Salv. Ibis, 1859, 

 p. 19, et 1860, p. 34; P. Z. S. 1864, p. 353, 1870, p. 836; 

 Salv. P. Z. S. 1867, p, 142, et 1870, p. 190. 



Cassicus prevosti, Scl. et Salv. Nomencl. p. 36 ; Tacz. 

 P. Z. S. 1877, p. 322 (Tumbez). 



Nigerrimus, rostro albo, pedibus nigris : long, tota 9, alse 

 4'1, caudse 4'3. Fern. Mari similis et, ut videtur, cras- 

 sitie vix minor. 



Hab. Southern Mexico, Jalapa (Salle) ; Oaxaca (Boucard) ; 

 Yucatan (Gaumcr) ; Guatemala (Salvin) ; Honduras; Costa 

 Rica (Rogers, Mus. S.-G.) ; Veragua (ArcS) ; Panama 

 (McLeannari) ; Bogota (Mus. P. L. S.) ; Western Ecuador, 

 Babahoyo and Esmeraldas (Fraser)} Western Peru, Tumbez 

 (Jelski). 



This species, which is, I think, undoubtedly allied to C. 

 solitarius, extends (as will be seen from the above-given list 

 of localities) from Mexico throughout the Central-American 

 isthmus down to Tumbez in Western Peru. I cannot make 

 out that there is much difference in the dimensions of the 

 sexes. 



