Genus Ramphastos, Linne.

CHARACTERES GENERICI.

Rostrum capite longius, maximum, crassum, inane, cultratum, margine basal incrassato; maxille angulo
frontali subtruncato transverso: nares verticales, pone maxille basin site: tomia serrata: lingua

angusta, pennacea. Cauda brevis, equalis.
8 , » &¢

Bill very large, longer than the head, thick, light, curved, and thickened at the basal margin; the frontal
angle transversely subtruncated ; margins serrated. /Vostri/s vertical, behind the base of the bill. Tongue

slender, long, and feathered. Zaz short, even.