Mycerobas Cab. in Wiegm. Arch., xiii, p. 350 (1847). Type, Mycerobas melanoxanthus Hodgs.
The genus Mycerobas contains a single species of Grosbeak distinguishable by the great size of the bill. The nostrils are partly covered by hairy plumes; the upper mandible has a tooth near the gape as in Perissospiza, but larger; the tail is short and forked, the wings as in Perissospiza ; the sexes differ in colour.