344 



BIRDS OF BRITISH GUIANA. 



Genus ATTICORA Boie. 

 J-tficora Boie, Isis, 1844, p. 172. Type A.fasciata (Ginel.). 



Fig. 1:^2. — To illustrate the form of the tail. 



In this oonusthe hill is fiat -.xi the hase, where the width is ahont 

 equal to the length of the exposed culinon ; the nostrils are rouiideil 

 and exposed. Tiie wing- is pointed, the tirst primary is lonjj;est, 

 and exceeds the length of the tail hy about one-fourth. The tail 

 is forked, the middle feathers about half the length of the outer 

 ones. The feet are weak, the middle toe and claw exceed the 

 length of the tarsus by about one-sixth. Coloration : male and 

 female similar, 



Rei/ to the Species. 



A. Upper surface glossy lilue-black. 



a. Throat and abdomen blue-black A.fasciata, p. 84'"). 



h' . Throat and abdomen white 



a" . Fore-neck banded with blue-black, 

 dividing the white of the throat 



from that of the abdomen A. melanoleuca, \). 34G. 



//'. Throat, fore-neck, and abdomen 



uniform white A. cyanoleuca, p. 347. 



B. Upper sm-face earth-brown ; throat, 



breast, and nuchal collar pale rufous 



like the sides of the face A.fucata roraimce, p. 348. 



