280 
GYMNOOICHLA. — GYMNODERUS. 
longues. Queue courte, égale; tarses alongés, minces, scutellés. Tête le plus 
ordinairement dénudée par l'usure des plumes. — 1 Spec. 
calvus Hahn, Abbild. Beschr. ausl. Vögel II. Tf. 4. [Guiana. 
Choucas chauve Buffon, Pl. enlum. 521. 
Corvus tricolor Müller, Syst. Nat. Suppl. 85. 
Corvus calvus Gmelin, Syst. Nat. I. 372. 
Chauve Le VAILLANT, Ois. rares Amér. Ind. 108. Tb. 49. 
G ymnocephalus capucinus Geoffroy, Ann. Mus. 1809. XIII. 237. 
Gymnocephalus cayanensis Stephens, gener. Zool. 
Ampelis gymnocephalus Dümont, Diet. sc. nat. XI. 32. 
Coracina gymnoeephala Vieillot, Encycl. méth. 770. 
Ampelis calva Lichtenstein, Verz. Doubl. 56. 
Coracina calva Temminck, ïabl. méth. 20. 
Gymnops tricolor Gray, Handl. Birds II. 19. 
GYMNOCICHLA (Formicariinae. — yujjivoç nudus, xiy\a. turdus) Sclater, Proceed. 
Zool. Soc. 1858. 274. = Formicarius Bodd. 
Rostrum forte; pileus cum loris omnino denudatus; narium apertura antice 
posita, ovalis; alae breves; pedes debiliores, digitis brevibus; unguibus brevibus 
nec validis; acrotarsiis divisis, paratarsiis integris. 
chiroleuca Sclater, Proceed. Zool. Soc. 1869. 417. = Formicarius chiro- 
leucus. 
nudieeps Sclater, Proceed. Zool. Soc. 1858. 274. == Formicarius nudieeps. 
GYMNOCORVUS (Subgen. Corvi) Lesson, Traité Ornith. 1831. 327. — Gray, 
Genera Birds II. 315. = Corvus Lin. 
Bill strong, with the culmen slightly arched to the entire tip; the sides com- 
pressed from the base, the lateral margins curved, and the gonys short and 
ascending; the nostrils lateral with the opening large, rounded and exposed. 
Wings long and pointed with the third quill the longest. Tail long and rounded 
at its end. Tarsi moderate and covered with broad scales. Toes moderate and 
strong. 
fuscicapillus Gray, Handl. Birds II. 14. = Corvus fuscicapillus Gray. 
senex Gray, Genera Birds II. 315. — Corvus senex Garn. 
tristis Lesson, Compt. Buffon IX. 37. = Corvus senex Garn. 
GYMNOCRANUS (Bucconidae. — yujJivoç nudus, xpavov caput) Heine, Journ. 
Ornith. 1860. VIII. 191. = Megalaema Gray. 
Synon. : Gymnobucco Bonap. 
Bonapartei Heine, 1. c. == Megalaema Bonapartei Schleg. 
calvus Heine, 1. c. — Megalaema calva Gray. 
fuliginosus Heine, 1. c. = Megalaema Bonapartei Schleg. 
Peli Heine, 1. c. = Megalaema calva Gray. 
GYMNODERUS (Ampelidae. — yujjivoç nudus, Sspoç cutis). — Geoffroy, 
St. Hilaire, Annales d. Mus. 1809. XIII. 237. 
Synon.: Coracina Vieill. — Gyninodera Less. — Coronis Glog. 
Bec médiocre, assez court triangulaire , élargi à la base, très fendu, convexe, 
pointu. Narines recouvertes par les plumes veloutées du front; tour des yeux et 
côtés du cou dénudés; ailes pointues, deuxième rémige la plus longue. Queue 
égale, ample; tarses courts, scutellés. — 1 Spec. 
foetidus Gray, Genera Birds II. 319. — Burmeister, Syst. Uebers. Tb. Bras. 
II. 425. [Guiana. Brasilia. 
Gracula foetida Linne, Syst. Nat. I. 164. — Buffon, PI. enlum. 609. 
Corvus nudicollis Boddaert, Tabl. PI. enlum. 
Corvus nudus Gmelin, Syst. Nat. I. 371. 
Gracula nuda, Gr. foetida Latham, Ind. Ornith. I. 190. 
Gracula nudicollis Shaw, gener. Zool. VII. 463. 
Gymnoderus cayennensis Geoffroy, Ann. Mus. 1809. XIII. 237. ' 
Coracina gymnodera Vieillot, Galerie Oiseaux II. 178. Tb. 112. 
Ampelis nudicollis Lichtenstein, Verz. Doubl. 56. 
