30f 



TETRAONID^.. 



GENUS CCXCII.— CRYPTONYX, Temminck. 

 Generic character: vide Steph. v. xi. p. 252. 



GENUS CCXCIIL— ODONTOPHORUS, Vieillot. TOCRO. 



Rostrum basi glabrum, supra 

 convexum ; lateribus cora- 

 pressis : mandibula inferior 

 versus apicem bidentata. 



Orhitce et lorce nud^e. 

 Cauda brevis, deflexa; rec- 

 tricibus duodecim. 



Beak glabrous at the base, 

 convex above, with its 

 sides compressed ; the 

 loiver mandible bidentate 

 towards the tip. 



Orbits and lores naked. 



Tail short, deflexed; with 

 twelve feathers. 



(Vide Steph. v. xi. p. 420.) 

 Sp. 1. Od. guianensis. 



Od. rufo-fuscus nigro maculatus ei varius, guld cifiered^per oculos 



vittd Julvd ; remigihus extus maculis rufis. 

 Red-brown Tocro spotted and varied with blacky with the throat 



cinereous ; a fulvous stripe through the eyes ; the quills on the 



outside with red spots. 

 Tetrao Guianensis. Ginel. Syst. Nat. i. 767' — Perdix guianensis. 



Lath. Ind. Orn. ii. p. 650. — Le Tocro, ou Perdrix de la Guiana. 



Bnff. Hist. Nat. Ois. u. iv. p. 513. — Guiana Partridge. Lath. 



Gen. Syn. v. iv.p. 77^. 



Inhabits Guiana. Length eleven inches ; beak 

 brown : round the eyes red warty excrescences : 

 through the eye, and behind it, a pale rufous streak : 

 the upper part of the plumage rufous-brown : the ex- 

 terior webs of the scapulars mottled with ash colour : 

 wing-coverts mottled with brownish-ash colour : the 

 back itself cinereous-brown, marked with blackish 

 dots : the throat cinereous : breast cinereous-brown, 



