AVES ACCIPITRES. 283 



The Vulturmre coutaiu the genera Vultur with three, Octoyyps with one, 

 and Gyps with three, species. The Gypaetinse consist of the single genus 

 (h/jHtetos, with one species. The Gypohieracinse have likewise only a single 

 genus Gypohierax, with one species. The Buteoninse consist of two genera : 

 Buteo, with thirty-two, and Arcliibuteo with three, species. The Poly- 

 borin<e comprise three genera : Ibycter with three, Milvago with five, and 

 Polyborus with one, species. 



Strickland has unnecessarily separated the Falco gracilis, 

 Temm., as a genus called Ischnosceles, from the Goshawks. 

 (Ann. of Nat. Hist, xiii, p. 409.) 



As a motive for this step he indicates the slenderness of the legs and the 

 relative size of the digits, the external being shorter than the internal. 



Hardy, in the Rev. Zool. p. 289, has given some remarks 

 upon the structure of nest, eggs, and habits of Falco pere- 

 grinus, and in the same journal (p. 440) Gerbe has done the 

 same for an egg that may possibly belong to the Golden 

 Eagle. Falco rupicoloides is a new species described and 

 figured, tab. 92, by A. Smith, in the Illust. of the Zool. of South 

 Africa, as is also Accipeter rufiventris, at tab. 93. 



H. Schlegel gives, in his Abh. aus dem Gebiete der 

 Zoologie uud vergl. Anat. 2tes Heft, the description of 

 Falco Feldeggi and F. tanypterus Licht. (F. biarmicus, 

 Ternm.) ; of the first-named there are also two beautiful 

 figures. In his ' Kritischen Uebersicht der Europ. Vogel' 

 he observes, at p. 11, that F. Feldeggi is the true Lanner- 

 falcon of falconry, and therefore bestows upon it the name 

 of F. lanarius, while to the F. lanarius of Temmiuck and 

 Naumann he restores the old name of F, sacer. 



PASSERINE. 



In the report made by Retzius and Loveu, concerning 

 the work that appeared soon after, entitled Beschreibimg 

 der Vogelfliigel von Simdevall, further illustrations are met 

 with touching the distinctions that in this respect occur 



