182 MESSRS. SCLATER AND SALV1N ON BIRDS [Mar. 27, 



48. COTURNICULUS PERUANUS, Bp. 



Hab. Nauta, and Upper and Lower Ucayali. 

 Many specimens. 



Fam. Icterid^e. 



49. OCYALUS LATIROSTRIS (S\V.). 



Hab. Upper Ucayali, near Cashaboya. 



Examples of both sexes of this fine species. The males measure 

 about 12 inches in length, wing 9, tail 4 - 7 ; the females 95, wing 

 6'1, tail 37, and are duller in colouring. 



50. OSTINOPS CRISTATUS (Gill.). 



Hab. Lower Ucayali. 



51. Ostinops ytjracarium (Lafr. et D'Orb.). 



Locality not marked ; but Sclater has specimens from the Upper 

 Amazons. 



52. Ostinops atrovirens (Lafr. et D'Orb.). 

 Hab. Upper Ucayali. 



53. Ostinops angustifrons (Spix). 

 Hab. Upper and Lower Ucayali. 



54. Cassicus persicus (Linn.). 

 Hab. Upper and Lower Ucayali. 



55. Cassiculus soeitarius (Vieill.). 



Hab. Nauta. 



There is little doubt that C. nigerrimus, Spix, is the same bird. The 

 synonym is given with a quaere in Sclater' s American Catalogue. 



56. Icterus chrysocephalus (Linn.). 

 Hab. Sarayacu. 



57. Xanthosomus icterocephalus (Linn.). 

 Hab. Lower Ucayali. 



58. Gymnomystax melanicterus (Vieill.). 

 Hab. Upper and Lower Ucayali. 



59. Quiscalus, sp. ? 



Hab. Upper Ucayali. 



One example, not in good condition, of a small speeies allied to 

 Q. cequatorialis. 



Fam. Corvid.e. 



60. Cyanocorax violaceus, DuBus. 

 Hab. Upper Ucayali. 



