33 



TYRANXIDiE. 



length 5 inches, wing 2*5, tail 1*8. Female. Above cinereous, front 

 and sides of head whitish ; tail black : beneath white ; flanks and 

 under wing-coverts cinerascent. 



Hab. Colombia and southwards to Bolivia and Argentina. 



a. 3 ad. sk. 



b. 3 ad. sk. 



c. 2 ad. sk. 



d. 2 a d- sk. 

 e,f. 3 2 ad. sk. 



g. 3 ad. sk. 

 '/(, i. 3 2 ad- sk. 

 j, k. 3 $ ad. sk. 

 /, m. 3 ad. et 3 jr. 



sk. 

 n. 3 ad- sk. 



o. 3 ad. sk. 

 p, q. 3 ad. sk. 



Bogota. 



Valencia, Venezuela ( Goeriny). 



Manilla, Venezuela (Goerinr/). 



Cayenne. 



Bartica Grove, Brit. Guiana 



(Whitely). 

 Pebas, E. Peru (Hauxwell). 

 Pernambuco (Forbes) 

 Bahia ( Wucherer). 

 Rio Claro, Goyaz, Brazil 



(Joyner). 

 Pelotas, Rio Grande do Sul, 



Brazil (Joyner). 

 Brazil. 

 Brazil. 



Salvin-Godruan Coll. 

 Salvin-Godman Coll. 

 Salviu-Godnian Coll. 

 Sclater Coll. 

 Salvin-Goduian Coll. 



Salvm-Godroan Coll. 

 Salvin-Godman Coll. 

 Salvin-Godman Coll. 

 yalvin-Godruan Coll. 



Salvin-Godman Coll. 



Sclater CoU. 

 J. Goidd, Esq. 



11. ALECTRURUS. 



Type. 



Alectrurus, Vieill. Analyse, p. 39 (1816) A. tricolor. 



Gallita, Vieill. Analyse, p. 68 (1816) A. tricolor. 



Xenurus, Bote, Isis, 1826, p. 973 , A. tricolor. 



Yetapa, Less. Tr. aV Orn. p. 387 (1831) A . risorius. 



Psalidura, Gloger, Hand. u. Hilfsb. p. 326 (1842) .... A. risorius. 



Alectrurus embraces two species, peculiar to the pampas-district 

 of South America (from S.E. Brazil to the middle of the Argentine 

 Republic), and at once known by the extraordinary development 

 of the outer rectrices in the male, which, however, is very different 

 in the two species. In A. tricolor this peculiar rectrix is only 

 moderately lengthened, but also laterally developed by the extreme 

 elongation of the web of the inner vane. In A. risorius it is 



Head of Alectrurus risorius 3 ■ 



enormously lengthened to nearly four times the length of the normal 

 feathers ; its base is denuded on both sides, and beyond the naked 

 base the inner web only is much developed, the outer web being 



