GYMNODERIM. 
and rounded. Tarsi and Toes similar to those of the preceding genus. The head entirely denuded of 
feathers. 
The species that constitutes this genus is found in Cayenne and the adjacent countries. 
G. calvus (Gmel.) PL enl. 521. — Gymnocephalus capucinus Geoffr.-, Gym. cayanensis Steph., Levaill. Ois. d’Amer. 49 . 
Cephalopterus Geoffr * 
Bill long, and rather depressed, with the culmen gradually curved, and the sides compressed to the 
tip, which is emarginated, and slightly hooked ; the gonys long and ascending ; the nostrils lateral, 
placed in a membranous groove, with the opening large and spatuliformed. Wings moderate, and 
rather pointed, with the third quill longest. The other characters like those of the former genus. The 
head of the male surmounted by a large crest, a portion hanging over the bill ; the breast naked, with a 
pendulous plumed covering. 
The type of this division is found in the Brazils. 
C. ornatus Geoffr. Ann. du Mus. xiii. t. 15. — Coracina cephaloptera Vieill. ; Ampelis umbellata Steph. Temm. PI. col. 255. 
Gymnoderus Geoffr. f 
Bill rather short, and broad at the base, with the culmen gradually curved, and the sides compressed 
to the tip, which is slightly emarginated ; the gonys moderate, and slightly ascending ; the nostrils 
lateral, with the opening nearly rounded, and exposed, but the groove entirely clothed with short downy 
feathers. Wings long ; with the third, fourth, and fifth quills equal and longest. Tail moderate, broad, 
and even. Tarsi shorter than the middle toe, and covered in front with transverse scales. Toes 
moderate ; the lateral toes nearly equal, the outer toe united at the base, the inner free ; the hind toe 
long, and padded beneath ; the claws long, compressed, and curved. The head, and the back and front 
of the neck, more or less covered by short downy feathers ; the sides of the latter entirely denuded of them. 
_ The tyP e of tllis division is found in Cayenne, Louisiana, and Guiana, where it inhabits the vast forests, and at times 
visits the plantations for the purpose of procuring its food, which consists of various fruits and berries. The nest is said 
to be formed at the tops of the high trees that border the great rivers. 
G^ffr XUdUS (Linn ' ) StriCk, ‘ PL enL 609 C ° rVUS ,mdicollis BoM -> C - nudus GmeL J C. gymnoderus Vieill; Gymnoderus cayanensis 
* Established by Geoffroy St. Hilaire in 1809 (Ann. du Mus. xiii. p. 235.) 
t Established by Geoffroy St. Hilaire in 1809 (Ann. du Mus. xiii. p. 237). Coracina of Vieillot (1816) is synonymous. 
March, 1847. 
