63 



[fuligulin^e. 



GENUS VIII. NYROCA. 



Est. Char. Pedes digitis posterioribus lobatis, externis mediis vix aequantibus. Tibice 

 plumatee. Rostrum brevius capite, prope apicem latissimum, obtusum. Lamella abbreviate, etnon 

 ad marginem continuatse. Naves subovales, parvse. Cauda brevis. Lingua obtusa, ad apicem 

 appendiculata, lateribus una et in medio duplici ordine setarum flexilum instructis, ad latera supra 

 bas setas quinque spinis instructis. 



Anat. Char. Trachea tubula in medio multum expandente, contractu supra larynginem 

 inferiorem. Larynx inferior partim ossea, partim membrinacea. 



Ext. Char. Feet with the posterior toes lobated, the outer ones scarcely equal to the 

 middle. Tibia feathered. Bill shorter than the head, near the point broadest, obtuse. Lamella 

 abbreviated, and not continued to the margin. Nostrils suboval, small. Tail short. Tongue 

 obtuse, with an appendage at the point, the sides with one and the middle with a double rank of 

 flexible bristles, above these bristles on the sides armed with five strong spines. 



ANAT. CHAR. Trachea with the tube much expanded in the middle, again contracted 

 above the inferior larynx. The inferior Larynx partly osseous, partly membranaceous. 



Anas. Linn. 



Nyroca. Flem. 



'\'\ i'K. Nyroca leucopthalmus. 



Dr. Fleming included the Scaup, Tufted Duck, and Pochards in his genus Ni/roca. It is, 

 however, now restricted to the Pochards which want the crested head. 



