140 Mr. P. L. Sclatcr on the 



1. Clypeicterus oseryi. 



Cassicus oseryi, Deville, Rev. Zool. 1849, p. 57; DesMurs, 

 Voy. de Casteln. Ois. p. 69, t. 18, fig. 3 ; Cassin, Pr. Ac. Sc. 

 Phil. 1867, p. 72. 



Clypeicterus oseryi, Bp. Consp. i. p. 426; Scl. et Salv. 

 P. Z. S. 1867, p. 755, 1873, p. 265. 



Supra castaneus, subtus flavus abdomine castaneo ; alls iutus 

 nigris ; cauda flava, rectricibus quatuor raediis et utrin- 

 que extimse pogonio externo fusco-viridibus ; rostro al- 

 bido, apice corneo ; pedibiis nigris : long, tota 14' 5, alse 

 8"5, caudse 5'5. Fern. Similis, sed crassitie valde mi- 

 nore : long, tota 11, alae 6, caudse 4'3 poll. Angl. 

 Hab. Upper Amazonia: Pebas (Z)m//e) ; Xeberos and Cha- 

 micuros {Bartlett) ; Sarayacu, Ecuador {Buckley) . 



The collectors in Upper Amazonia have recently supplied 

 our collections with fine examples of both sexes of this re- 

 markable bird. There is a considerable difference between 

 the sizes of the two sexes, as will be seen by the dimensions 

 given above. 



Genus 2. Ocyalus. 

 Ocyalus, Waterhouse, P. Z. S. 1840, p. 183: type 0. lati- 

 roslris. 



1. Ocyalus latirostris. 



Cassicus latirostris, Sw. An. in Menag. p. 358; Cassin, Pr. 

 Ac. Sc. Phil. 1867, p. 71. 



Ocyalus popay anus, Waterh. P. Z. S. 1840, p. 183. 

 Ocyalus latirostris, Bp. Consp. p. 427; Scl. Cat. A. B. 

 p. 127; Scl. et Salv. P. Z. S. 1866, p. 182, 1867, p. 749, 

 1873, p. 265 ; Nomencl. p. 35. 



Velutino-niger; capitesupero, nucha et dorso summo brunneo- 



castaneis; alis caudaque extiis a^neo-nigris, rectricibus 



quatuor lateralibus aureo-flavis, nigro terminatis ; rostro 



plumbeo, pedibus nigris : long, tota maris 12, alee 9'2, 



caudse 2'5; feminge 9"2, alae 6, caudse 3'8. 



Hab. Upper Amazonia : Nauta, Sarayacu, Chamicuros, and 



Santa Cruz [Bartlett), Yquitos {Wliitely) ; Sarayacu, Ecuador 



{Buckley); Popayan {Waterhouse). 



Of this fine and distinct species we have now full series of 



