504 CRACIDJE. 



S. ORTALIS*. 



Type. 



Ortalis, Merrein, Av. Icones et Descr. ii. p. 40 (1786) ; 

 Gloger, Hand- u. Hilfsb. p. 373 (1842) ; Wharton, 

 Ibis, 1879, p. 450 O. motmot. 



Ganix, Rqfinesque, Analyse, p. 69 (1815). 



Ortalida, auct. 



Ortaldia, Flem. Phil. Zool. ii. p. 230 (1822) O. motmot. 



Penelops, Reiclienh. (nee Kaup, 1829) Syst. Av. p. xxvi 



(1853) 0. albiventris. 



Tail composed of 12 feathers, long and rounded, the outer 

 feathers being shorter tlian the middle pair. 



1st primary is much shorter than the 10th, and the 6th is slightly 

 the longest. 



A large naked space surrounds the eye ; chin and throat naked, with 

 a band of thin feathers with bristle-like shafts down the middle. 



Tarsus about equal in length to the middle toe and claw. 



Range. Central and South America. 



Key to the Species. 

 A. Outer primaries brown or hronze-brown. 



a. Extremities of the outer tail-feathers chestnut. 

 «'. Chest uniform. 



a". Outer tail-feathers chestnut almost to 

 the base. 

 a'". Top of the head chestnut. Size larger, 



wing 8-3 motmot, p. 505. 



b'" . Top of the head brown. Size smaller, 



wing 6"8 araucuan, p. 506. 



b". Outer tail-feathers with the basal half or 

 more dark, and the remainder chestnut. 

 c". Top of the head rufous chestnut .... }-iiJiceps, p. 506. 

 d'". Top of the head grey or brownish 

 grey. 



a*. Belly chestnut tvagleri, p. 507. 



b\ Belly whitish buff. 



rt". The five outer pairs of tail-feathers 



tipped with chestnut rvficauda, p. 507. 



6'. The two outer pairs of tail-feathers 



tipped with chestnut canicollis, p. 508. 



b' . Feathers of the chest margined or spotted 

 with whitish at the extremity t- 

 c". Third pair of tail-feathers never widely 

 tipped with chestnut on both webs, 

 no strongly marked superciliary stripe ex- 

 tending backwards down the sides of the 

 head. 

 e". Top of the head rufous-brown or dark 

 chestnut. 



* Doubtful species : — 



? Ortalida ?leucopha;a, Licht., Gray, Hand-l. B. ii. p. 252 (1870). 



i' In 0. supcrciliaris the spots on the feathers of the chest are rather faint 

 and indistinct. 



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