68 ACCIPITRES DIURNI. 



Poliornis liventer G. R. Gray, Gen. of B. i. p 

 Circaetus (Poliornis) liventer Kaup, Classif. der Sdug. und Vog. 

 p. 122. 



a, Indian Archipelago. From the Leyden Museum. 



3. POLIORNIS INDICUS. The grey-cheeked Hawk. 

 Falco poliogenys Temm. pi. col. 325. 



Buteo poliogenys Less. Tr< d'Orn. p. 78. ; Faun. Jap. p. 20. 

 Circaetus (Poliornis) poliogenys Kaup, Classif. der Sdug. und Vog. 



p. 122. 

 Circaetus (Poliornis) indicus (Gmel.*) Kaup, Isis, (1847) p. 368. 



a, b. Philippine Islands. From Mr. Cuming's Collection. 

 c. Japan. From the Leyden Museum. 



4. POLIORNIS PYRRHOGENYS. The dark- cheeked Hawk. 



Astur barbatus Eyton, Ann. Nat. Hist. (1845) p. 227. 

 Buteo pyrrhogenys Temm. and Schl. Faun. Japan, p. 21. 



a. Malacca. Presented by Capt. A. Charlton. 



3. GERANOSPIZA. 



Ischnoscelis Strickl. Ann. and Mag. of Nat. Hist. (1844) p. 409. 

 Geranospiza Kaup, Isis, (1847) p. 183. 



1. GERANOSPIZA GRACILIS. The slender Hawk. 



Ischnoscelis gracilis Strickl. Ann. and Mag. of Nat Hist. (1844) 



p. 409.; Kaup. Mm. Senckenb. (1845) p. 259. 

 Falco gracilis Temm. pi. col. 91. 

 Falco hemidactylus Temm. pi. col. 3. 

 Nisus hemidactylus Cuv. Reg. An. (1829) p. 333. 

 Falco Wiedii brasiliensis Griff. Ann. Kingd. i. pi. p. 238. ? 

 Sparvius casrulescens Vieill. N. Diet d'Hist. Nat. x. p. 318. ; Kaup, 



Azara, No. 22. 

 Geranospiza gracilis Kaup, Isis, (1847) p. 183. 



a. Buenos Ayres, young. From M. Verreaux' Collection. 



b. Island of Puna. Presented by Mr. G. Barclay. 



4. MICRASTUR. 



Micrastur G. R. Gray, List. Gen. of B. p. 6. (1841.) 

 Brachypterus Less. Compl. Buff. vii. p. 113. (1837.) 

 Climacocercus Cab. Txch. Consp. Av. (1844.) 

 Herpetotheres (pars) Kaup, Isis, (1847) p. 258. 

 Carnifex Less. Rev. Zool. (1842) p. 378. ? 



