The intrinsic muscles of the Syrinx are fixed to about i he middle of the bronchial semi-rings and are always limited to two pairs ; the wing has ten primaries, the first being very long and reaching almost to the tip of the wing; the tarsus is exceptionally long and strong, the anterior surface being entire and, smooth; the tail, of twelve feathers, is very short; the feathers of the crown very full and erectile, forming a short thick, crest, not apparent unless the bird is excited". In this family the flexor longus hallucis and the flexor profundus digitorum are not united with a vinculum as th,ey are in the next family, the Eurylaimidae..
Key to Genera.
A. Feathers at the side of the nape long and pointed, forming conspicuous aigrettes………..Anthocincla, p. 442.
B. No aigrettes at the side of the nape………..Pitta, p. 443.