310 



1. CLYPEICTERUS. 



Clypeicteriis, i?;j. Cojisj). i. p. 426 (1850) .... 



Type. 

 C. oseryi. 



Frontal shields of Cassiques.— 1. Clypeicfenis oseryi; 2. Ocyaliis latirostris; 

 3. Eucorydes wagleri. 



This remarkable monotypic form is confined to Upper Amazonia. 

 It is at once distinguishable by the enormous development of its 

 frontal shield, and the swollen horny bases of the lower mandible. 

 The bill is short and wide at the base. 



1. Clypeicterus oseryi. 



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



Casteln., Ois. p. 6G, t. 18. fig. 3 ; Cassin, Pr. Ac. Sc. Phil. 1867, 



p. 72. 

 Clypeicterus oseryi, Bp. Consp. i. p. 426; Scl. et Salv. P. Z. 8. 1867, 



■p. 755, 1873, p. 265 ; iid. Nurnencl. p. 35 ; Scl. Jhis, 1883, p. 146 ; 



Tacz. Orn. Per. ii. p. 402. 



Above chestnut ; wings black, coverts and secondaries edged with 

 chestnut ; tail yellow, four middle rectrices and outer webs of the 

 external pair brownish olive : beneath greenish yellow, more ashy 

 on the throat ; belly, flanks, and crissum dark chestnut ; bill 

 greenish white, passing into horn-colour at the apex ; feet black : 

 whole length 14-5 inches, wing 8-5, tail 5-5. Female similar but 

 much smaller : whole length 11 inches, wing 6, tail 4-3. 



Bab. Ujiper Amazonia. 



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