2 / b FALCONID^. 



1. Herpetotheres cachinnans. 



Falco cacliiiinaus, Linn. S. X. i. p. 128 (1706). 



Macagiia, Azara, Apimt. i. p. 81 (1802); Ilartl. Lid. Azar. p. 2 



(1847). 

 Astur cachinnans, Cur. Ehpie An. i. p. 320 (1817) ; Spix, Av. Bran. 



i. p. 8, tab. iii. a ( iSiU) ; 'Schl. Mm. P.-B. Astures, p. 2(3 (1802) ; id. 



Recuc Acciptr. p. U8 (1873). 

 Heroetotheres cachiunaus, Vieill. N. Diet. (VHist. Nat. xviii. p. 317 



(1817) ; id. et Oiid. Gal. Ois. i. p. 47, pi. 19 (182-5) ; Bp. Consp. i. 



p. 30 (1850) ; StricM. Oni. Si/n. p. 75 (1855) ; Burm. Th. Bras. ii. 



p. 90 (1855) ; Grai/, Hand-L B. i. p. 31 (1869); Pelz. Orn. Bras. 



pp. 7, 398 (1871 ) ;■ Scl. S,- Sah. Xomencl. p. 122 (1873). 

 Cachiuna cachinnans, F/em. Phil. ZdoI. ii. p. 236 (1822). 

 Dfedalion cachinnans, Vi</. Zuul. Juiirn. i. p. 338 (1824). 

 Macagua cachinnans, Less. Traite, p. (SS (1831). 

 Cachinna hei-petotheres, Grati, Gen. B. i. p. 15, pi. 7. fig. 4 (1845). 

 Circaetus cachinnans, Kaup, Mas. Senckcnh. iii. p. 200 (1845). 



Adult. Brown above, with faint indications of paler edgings to the 

 feathers, the lower upper tail-coverts creamy buff ; head crested, the 

 crown huffy white, forming a cap, with narrow brown shaft-streaks 

 to the feathers ; feathers all round the eye, hinder cheeks, ear-coverts, 

 and a broad nuchal band black ; a small spot under the eye, fore 

 part of cheeks, sides of neck, and a collar round the same, as well 

 as the entire underparts, huffy white ; wing-coverts brown like the 

 back ; quills brown, creamy buff at the base, gradually shading into 

 rufous, and barred with black, the inner primaries externally creamy 

 buff at the base, forming a conspicuous patch on the wing ; tail 

 alternately banded with dark brown and creamy buff, the outer 

 feather almost entirely creamy buff, with very narrow cross bars ; 

 cere orange ; bUl black ; feet orange ; iris hazel. Total length 

 18 inches, culmeu 1-35, wing 11-2, tail 9-3, tarsus 2-4. 



Young. Very similar to the adult,, but having plainer margins to 

 the feathers of the upper surface ; the under sui-face, especially the 

 under wing-coverts and axillaries, strongly shaded with ochre ; 

 the rufous on the quills extending further down towards the tip 

 of the feathers ; the bands on the tail more strongly tinged with 

 ochre. 



Hab. The same as that of the genus. 



a. Jan. st. British Guiana. Royal Geographical Society [P.]. 



b. Ad. st. Honduras. 



c. Jiiv. sk. Mexico. Purchased. 



d. Ad. sk. I. of Mexiana. A. R. Wallace, Esq. [C.]. 



e. Ad. sk. Demerara. R. B. Sharpe, Esq. [P.]. 



f. Skeleton. . L. Eraser, Esq. [C.]. 



48. DRyOTiHORCHIS. 



Type. 



Ih-votiiiirchis, Shelley, Ibis, 1874, p. 90 1). .=!pectaLilis. 



Ixinujc. (jold Coast, probably reaching to Gaboon. 



