(syn. Tanygnathus Ϯ Great-billed Parrot T. megalorhynchus) Gr. ερυθρος eruthros red; στομα stoma, στοματος stomatos mouth; "Upper mandible very distinctly toothed; lower mandible longer than it is high. Tail short, even or rounded. ERYTHROSTOMUS, Sw. Tail rather lengthened, graduated or rounded; the feathers broad. Wings moderate, resembling those of the next genus [Chrysotis]; but the tertials are not longer than the secondaries. Asia, America. macrorynchus. Le Vaill. pl. 85. cyanogaster. Part 5. No. 180" (Swainson 1837).