Genus Ramphastos, Linne. 
Characteres Generici. 
Rostrum capite longius, maximum, crassum, inane, cultratum, margine hasali incrassato; maxillce angulo 
frontali subtruncato transverso: nares verticales, pone maxillce basin sitce: tomia serrata: lingua 
angusta, pen7iacea. Cauda breris, cequalis. 
Bill very large, longer than the head, thick, light, curved, and thickened at the basal margin ; the frontal 
angle transversely subtruncated; margins serrated. Nostrils vertical, behind the base of the bill. Toiigue 
slender, long, and feathered. Tail short, even. 
