ON TWO HYBRID DÜCKS 



IN COUNT NINNI'S GOLLEGTION AT VENICE 



BV 



D' ETTORE ARRIGONI DEGLl ODDI 



Meniber of B. 0. U, of Deutschen Ornithologischen Gesellschaft, 

 of the Societti zoologique de France, etc. 



Hybrid betv^een the "Wigeon and Pintail. 

 Mareca penelope L. X Dafila acuta L. 



(N''o '2G4 ö" ad., March 27'" 1874. Yenetian Estuary). 



Wiiig-coverls liglit groy slightly darker towards the 

 body with a whitish edgo at the top more distinct in the 

 medians, ending with a black band on the last row washed 

 with rather light bn(T ; secondaries gilt-green with a 

 purple shade on the two anterior thirds of the outer web, 

 velvet-black on the other third and edged at the top with 

 whitish-buir ; Ihe green forms on the wing, when folded, 

 a specnlum limited anteriorly by a buflish-black and pos- 

 lerioi'ly by a velvet-blaek band edged with whitish bnff ; 

 tertials inwardly brown, here and there shaded with black, 

 especially near the shaft, outwardly grey-pearl near the 

 shaft, there is besides a velvet-black band longways, 

 surrounde<l by whitish-grey which in the outer ones is 

 spotted witli black; they all have a (hu'k brown top, 

 except the fornier which has a white edge all round the 

 top of the feather, this edge is slightly butf on the outer 

 side ; wing, in the inner side, like the Wigeon, 



Bill like Pintail in colonr, it seenis black on the ridge 

 and on the top and lead-blue on the sides ; irides hazel ; 



