species of the Fainihj leteridae. 108 



Nigerrimiis uuicolor ; rostro albo, pedibus nigris : long, tota 

 11, alae 4*8, caudse 4*5. Fern. Mari similis, sed minor : 

 long, tota 8'5, alfe 4-4, caudae 4*3,. 

 Hab. Paraguay (Azara) ; Buenos Ayres [Haslehurat) ; 



Brazil, Cuyaba andMatto-grosso {Natl.) ; Ceara {Jesse) ; Upper 



Amazonia, Nauta {Bartletf) ; 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. 



Amblycercus nigerrimus, Cab. Mus. Hein. p. 190 (note). 



Cassicuhis 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, caudae 4*3. Fem. Mari similis et, ut videtur, cras- 

 sitie vix minor. 



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

 Yucatan {Gaumer) ; Guatemala {Salvin); Honduras; Costa 

 llica {Rogers, Mus. S.-G.) ; Veragua {Arce) ; Panama 

 {McLeannan) ; 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. 



