Serilophus Swainson, Class, B.. ii, p. 262 (1837). Type, Serilophus lunatus Gould.
In this genus the bill is comparatively small and has the sides of the upper mandible straight and not overhanging; the tail is much graduated; the wing is round and the secondaries and inner primaries are truncated and emarginated at the ends of the shafts; rictal bristles present; plumage very lax and soft; the sexes are practically alike.
Key to Species.
A. Primaries sharply pointed ; back and crown paler and rufescent………..S. lunatus, p. 469.
B. Primaries normal; back and crown darker and with practically no rufous………..S. rubropyygius, p. 470.