part II
., p. 977.
Bill rather large and strong, with the ridge of the upper mandible curved gradually from the base to the point—ridge of the lower mandible curved upwards. Nostrils at the base of the bill, in rather a large membrane, and partially concealed by projecting feathers. Wings moderate, rather rounded, fourth, fifth and sixth primaries usually longest; secondaries long, exceeding some of the shorter primaries. Tail rather lengthened and rounded; tarsi robust, rather long; toes and claws strong. Head usually with a crest or with the frontal plumes erect and crest-like. Plumage of various colors, mostly with some part of greater or less extent, blue. Exclusively American. Type _C. pileatus_. (Wagler.)
Cyanocorax luxuosus. (Lesson.) Garrulus luxuosus. Lesson Revue Zoologique 1839, p. 100. (Paris.) Cyanocorax luxuosus. (Less.) Du Bus, Esquisses Ornithologiques,