98 ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 



beneath the body pale dusky green, somewhat darker on the breast and 

 sides ; uropygium yellowish-green. 



Three specimens of this species are contained in the British Museum, ex- 

 hibiting male, female, and young. 



2. Aglaia Vittata. 



Tanagra vittata, Temm. PL col. 



Maldonado; not common. 



PiPiLLO PERSONATA. Swains. 

 Plate XXXV. 

 P. personata, Swains. Two cent, and a quart, p. 311. 



Maldonado; not common. The stomach of one, which I shot, contained 

 seeds. 



EmBERIZOIDES POLIOCEPHALUS. G. R. Gruxj. 



E. olivaceus, ilorsi plumis medio nigro strialis ; capite gulc'tqtie cinereis, priore phmiis 

 singulis, medio nigrostriutis ; corpore infra rnj'esccnti albo; hypocliondriis tectricibtis 

 caudce inferiorihus obscuriorihus ; alarum margine late Jiava, remigibus primuriis 

 secundariisque nigris ; prior ibus pallide olivaceo, posterioribus olivascente Jlavo lath 

 marginatis. 



Long. tot. 7f line. ; alw, 3h ; cmidcv, 4 ; tarsi, l\; rostri, 8 lin. 



Olivaceous, with the feathers of the back marked down the middle with black ; the 

 head and throat cinereous, with each feather of the former streaked down the 

 middle with black ; beneath the body rufous white, darker on the flanks 

 and under tail coverts : the border of the wings bright yellow ; the secon- 

 daries and primaries black, the former broadly margined with pale olive, the 

 latter with bright olivaceous yellow ; base of bill dusky orange. 



Habitat, northern shore of the Plata. {May and August.) 



This bird is common both near Monte Video and Maldonado, in swamps. 



Stomach full of seeds : it makes a shrill loud cry : its flight is clumsy, as if its 



tail were disjointed. 



Fam.— COCCOTHRAUSTIN^. 



Genus, Geospiza, Gould. 

 Corporis Jigura brevissima et robusla. 

 Rostrum magnum, robustum, validum, altituditie longitudinem prcestante ; culmine 



arctiato et capitis verticem superante, apice sine denticulo, lateribus tumidis. 

 Naribus basalibus et semitectis plumis frontalibus. 



