ANATIN^.] 



38 



GENUS X. CYANOPTERUS, 



Ext. Char. Pedes digitis posterioribus mediocribus, et non lobatis. Rostrum latins ad 

 apicem quam ad basin. Lamella paululum elongatae. Narcs rotundata 1 , magna?. Cauda vix 

 elongata. Ala ptilis caeruleis. 



Anat. Char. Trachea tubulu infra glotidem expandente, tunc contractu, rursusque 

 expandente, et contractu supra larynginem inferiorcm. Larynx inferior bulbo magno osseo 

 lateribus et antice tendente. 



Ext. Char. Feet with the posterior toes moderate, and not lobated. Bill broader at the 

 tip than at the base. Lamcllce a little elongated. Nostrils rounded, large. Tail a little elongated. 



Anat. Char. Trachea with the tube below the glottis expanding, then contracted, and 

 again expanding, and contracted above the inferior larynx. The inferior Larynx with a large 

 osseous bulb extending below and on both sides. 



Anas. Linn. 



QUERQUEDULA. Jlriss. 



Cyanopterus nobis. 



Type. Cyanopterus Rafflesii. 



The above genus consists of that group commonly called the blue-winged teal ; nor do we 

 know one instance of a bird agreeing with the character which has not bright azure blue wings, 

 except the Garganey, which has, however, dull slate-coloured ones. Anas Rafflesii, King, may be 

 considered as a good specimen of the form, which may be always distinguished by the peculiar 

 abrupt termination to the upper mandible, which is bent as it were over the lower one, both in front 



