59 



[fuuguunjs. 



GENUS Yl. CALLICHEN. 



Ext. Char. Pedes digitis posterioribus lobatis, intermediis vix longissimis. Tibia 

 plumatae. Rostrum capite equale, prope basum latissimum. Lamella yalidse, et acl marginem 

 continuatae. Nares subovales, magnae. Cauda mediocris. Caput cristatum. 



Anat. Char. Trachea duobus bulbis tubula. Larynx inferior bulbo lateralis partim 

 membrinaceo, partim osseo, latere complanato. 



Ext. Char. Feet with the posterior toes lobated, the middle ones scarcely the longest. 

 Thighs feathered. Dill equal to the head, broadest at the base. Lamella strong, and con- 

 tinued to the margin. Nostrils suboval, large, Tail moderate. Head crested. 



Anat. Char. Trachea with two bulbs on the tube. Inferior Larynx with a lateral bulb, 

 partly membrinaceous, partly osseous, on the side flattened. 



Anas. Linn. 



Fuligula. Ray, Leach. 



Glaucium, Querquedula. Briss. 



CALLICHEN. Brehm. 



Mergoidf.s nobis. 



Type. Callichen rujina. 



