554 BIRDS OF BRITISH GUIANA. 



Genus CACICUS Daud. 



Cacicus Daudin, Traite; Element. Compl. d'Orn. ii. p. 322, 1800. Type 

 G. hcBmorrhous (Linn.). 



rig. 201. — Cacicus cela. 



The species on which this genus was founded differs from the 

 previous genus by its sipaller size and the short nuchal crest, 

 otherwise' its general characters are in many respects similar. 

 There is a tuft of short velvet-like feathers behind the nostrils. 

 The bill is long and sharply pointed, the depth at its base is about 

 half its length and the width at the base is rather less than one- 

 third of its length. The wing is rounded, the second, third, and 

 fourth primaries are longest and subequal, the first is shorter 

 than the fifth but much longer than the sixth. The tail is 

 rounded at the tip and about two-thirds the length of the wing. 

 The tarsus is about equal in length to the middle toe and claw. 

 Coloration : male and female similar. 



Key to the Species. 



A. Lower back, rump, and upper tail-coverts 



yellow ■. G. cela, p. 554. 



B. Lower back, rump, and upper tail-coverts 



bright red G. hcBmorrhous, -p. 557. 



699. Cacicus cela. 



Yellow-backed Caciqdb. 



Parus cela Linn. Syst. Nat. i. p. 191, 1758 (Guiana). 



Oriolus persicus Linn. Syst. Nat. i. p. 161, 1766 (America meridionali). 



Cassiciis persicus Cab. in Sohomb. Reis. Guian. iii. p. 681, 1848 ; Brown, 

 Canoe and Camp Life in British Guiana, p. 354, 1876 (Corentyne 

 River) ; Salvin, Ibis, 1885, p. 217 (Bartica Grove) ; Sclater, Cat. B. 

 Brit. Mus. xi. p. 321, 1886 (Bartica Grove); Quelch, Timehri (2) 

 ii. p. 375, 1888 (Tauraculi district) ; Lloyd Price, op. cit. (2) v. 

 p. 62, 1891 (nests & eggs) ; Quelch, torn cit. p. 86 (Georgetown); 

 C. A. Lloyd, Timehri (2) xi. p. 5, 1897. 



