()5. HENICOPEKNIS. 341 



(18G6) ; Gray, Ha/id-l. B. i. p. 28 (1809) ; Pelz. Om. Bras. pp. G, 

 398 (1871) ; Scl. ^- JSalv. Nomend. p. 121 (1873). 



Nertus rufifrons, Boie, Isis, 1828, p. 314. 



Falco rufifrons, Max: Beitr. Om. Bras. iii. p. 123 (1830). 



Elanus torquatus, Less. Traite, p. 72 (1831) ; Pucher. Rev. et Mag. de 

 Zool. 1850, p. 14. 



Chondrohierax rufifrons, Less. 



Elanus swainsoni, Schl. Mm. P.-B. Milvi, p. 9 (1862). 



Adult. Above leaden grey, the quills blackish, the secondaries 

 broadly tipped with white ; tail above leaden black, underneath 

 much paler, inclining to white on the inner web ; forehead and sides 

 of the face safFron-yeUow ; sides of the neck and a collar encircling 

 the latter white, below which is a more or less conspicuous inter- 

 scapulary patch of vinous red ; under surface of the body entirely 

 white, with a small patch of leaden black on each side of the upper 

 breast ; the thighs very pale rufous, as also the inner under wing- 

 coverts ; all the rest of the wing-coverts and the inner face of the 

 quills white ; bill horn-black ; feet yellow, nails black. Total 

 length 8 inches, culmen 0-65, wing 5-8, tail 3-9, tarsus 1-15. 



Adult female. Similar to the male, but larger. Total length 

 10*6 inches, culmen 0-7, wing 7, tail 4-6, tarsus 1-2. 



Hab. The same as that of the genus. 



a. Ad. St. Brazil. Major-Gen. Hardwicke [P.]. 



b. Ad. sk. Brazil. 



c. Ad. sk. Bahia. Dr. Wueherer [C.]. 



d. Ad. sk. Guayaquil. Capt. Kellett and Lieut. 



Wood [P.]. 



e. Ad, sk. Trinidad. Purchased. 



65. HENICOPEENIS. 



Type. 

 Henicopernis, Gray, P. Z. S. 1859, p. 153 H. longicauda. 



Range. New Guinea, Aru Islands, Waigiou, Mysol. 



1. Henicopernis longicauda. 



Falco longicaudus, Garnot, Voy. Coq. i. p. 588, pi. 10 (1826). 



Dsedalion longicauda. Less. Traite, p. 67 (1831). 



Astur longicaudus, Gray, Gm. B. i. p. 27 (1849) ; Strickl. Om. Syn. 



p. 120 (1855). 

 Henicopernis longicauda, Gray, P. Z. S. 1859, p. 153: Wall. Ibis, 



1868, p. 17. 

 Pernis longicauda, Schl. Nederl. Tijdschr. iii. p. 327 (1866) ; Gray, 



Hand-l. B. i. p. 26 (1869 ) ; Schl. Mus. P.-B. Revue Accipitr. p. 132 



(1873). 



Adult female. Above ashy brown, the feathers aU broadly barred 

 with black, excepting the lower back and rump, which is more uni- 

 form ; the head and hind neck much varied with white, and longi- 

 tudinally marked with blackish brown, the sides of the face more 

 narrowly streaked ; quills and tail ashy brown, paler at tips, and 



