148 Mr. P. L. Sclater on the 



Genus 4. Ostinops. 

 Ostinops, Cab. Mus, Hein. i. p. 187 (1851) : type 0. decu- 

 manus. 



The Cassiques for which Dr. Cabanis has proposed the 

 generic term Ostinops may be best considered in two sections, 

 to be distinguished as follows : — 



a. Rostri mandibula inferiore ad basin pelle nuda i 



1 . . A \ Ostinopes iiudirostres. 



b. Rostri mandibula inferiore ad basin plumis !/->.• » ■ , 



^ f Ostinopes plumirostres. 



obtecta I 



Of the Ostinopes nudirostres (which are the finest and largest 

 species of the whole group) four species are known, which 

 are recognizable by the following diagnosis : — 



a. Pileo nigro, 



ventre castaneo, 



femoribus nigris (1) montezum(S. 



femoribus castaueis (2) bifasciahis. 



ventre nigro (3) guatimozwns. 



h. Pileo flavo-virente (4) yaracariwn. 



1. Ostinops montezum.^. 

 Cassicus montezuma, Less. Cent. Zool. pi. 7. 

 Cacicus montezuma, Sclater, P. Z. S. 1856, p. 300, et 1859, 

 p. 365. 



Ostinops montezunKB, Sclater, P. Z. S. 1859, p. 380 ; Cassin, 

 Pr. Acad. Philad. 1860, p. 139, et 1867, p. 71 ; Scl. Cat. A. 

 B. p. 128; Sumichrast, Mem. Boston Soc. N. H. vol. i. 

 p. 553 (Vera Cruz) ; Scl. et Salv. Ibis, 1859, p. 19; P. Z. S. 

 1864, p. 353, 1867, p. 279, 1870, p. 836, 1879, p. 509 ; Salv. 

 Ibis, 1865, p. 195. 



Ostinops bifasciata, Cab. Mus. Hein. p. 187 (partim) . 

 Supra luride castaneus, capite nigro ; subtus gutture nigro in 

 abdomen castaneum transeunte ; femoribus nigris, crisso 

 castaneo; cauda flava, hujus rectricibus duabus mediis 

 nigricantibus ; rostri nigri basi et apice abrupte flavis ; 

 pedibus nigris : long, tota (maris) 19, alae 10-3, caudae 8; 

 (feminse) 12*5, alae 7"8, caudse 6. 

 Hah. S. Mexico, Vera Cruz [Sumichrast) ; Jalapa [de Oca); 



