Family — P RIONOPIDiE. 
Genus— COLLURICINCLA. 
Colluricincla Vigors and Horsfield, Trans. 
Linn. Soc. (Lond.), Vol. XV., p. 213, Feb. 
17th, 1827. Type (by monotypy) . . G. cinerea = 
Turdus harmonious Latham. 
Also spelt — 
Colluriocincla Gray, List Genera Birds, p. 36, 1840. 
Gollyriocincla Sharpe, Cat. Birds Brit. Mus., Vol. III., p. 289, 1877. 
Collyriocichla Sharpe, Handl. Gen. Sp. Birds Brit. Mus., Vol. IV., p. 269, 1903. 
Gollurisoma Swainson, Fauna Amer. Boreal., pp. 110, 171, “1831 ”=Feb., 1832. 
Nomen nudum ? error for Colluricincla. 
Pnigocichla Cabanis, Mus. Heine, Vol. I., p. 66 (after Oct. 23rd), 1851 : 
New name for ■ Colluricincla V. & H.” 
Large Thrush-like birds with long stout laterally compressed bills, long 
wings, long square tails and short stout legs and feet. 
The bill is longer than the head, stout, strongly laterally compressed 
with the tip hooked and posteriorly notched, the culmen little curved and 
semi-keeled ; the nostrils are oval apertures placed in anterior portion of 
slight nasal groove, scarcely more than a depression which is almost entirely 
hidden by a bunch of projecting nasal bristles ; rictal bristles small ; under 
mandible stout, depth of both mandibles at the base greater than the width ; 
the interramal space small, triangular and feathered, gonys a little curved. 
The wing is long, with the first primary short, shorter than the 
secondaries, about hah the length of the second which is equal to the eighth 
and longer than the secondaries ; the third to sixth subequal and longest, 
the seventh and eighth a little shorter respectively. 
The tail is long and straight, scarcely emarginate. 
The legs are short and stout, the anterior part strongly scutellate with 
eighth scutes, the hind portion bilaminate ; the inner toe and claw is equal 
to the middle toe alone, the outer a little longer than the inner; hind toe 
stronger, equal to inner toe but claw much stouter and longer, and hind toe 
and claw a little less than middle toe and claw. 
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