28 



Incertm Sedis. 



Genas TERACUS, Aymard i. 



Known definitely only by the femur '-, wliicli is regarded by its describer as 

 referable to the Acoipitres. 



Teracus littoralis, Aymard ^. 



The type and only known species. Length of femur 0,920. 

 Hab. Europe (France). 



From the Lower Miocene (Middle Oligocene) of Eonzon, near Puy-en- 

 Velay. 



Genus PAL.ffiOHIERAX, Milue-Edwards \ 



Known by the tarso-metatarsus, which approximates in some respects to 

 that of Aqiiila, and in others to Gypohic7'ax. 



Palaeohierax gervaisi, Milne-Edwards '. 

 Syn. Aqidla gervaisi, Milne-Edwards ^. 



The type and only described species. Length of tarso-metatarsus 0,088. 

 Hab. Europe (France). 



From the Lower Miocene (Upper Oligocene) of AUier. See Milne-Edwards, 

 ' Oiseaux Fossiles de la France,' pi. clxxxiii. figs. 1-10. 



VuLTURiNE Section. 



In the Vultures the female is smaller than the male, and many of 

 the species attain yery large dimensions. The terminal phalangeals 

 of the pes are stouter, shorter, and less curved than in the preceding 

 section. The tarso-metatarsus has a less completely triangular 

 section, and its posterior surface is less deeply channelled, while the 

 distal trochleaj are longer, that of the second digit being less 

 enlarged. 



Genus GYPS, Savigny''. 



The limb-bones of this genus agree with those of Vidtur, and 

 differ from Aqxiila in the following points. In the tarso-metatarsus 



1 Bull. Soc. Geol. France, ser. 2, vol. ix. p. 2G6 (1852). 



- See Milne-Edwards, Oiseaux Fossiles de la France, pi. elxxxv. figs. 20, 21. 



^ Loc. cit. 



' Oiseaux Fossiles de la France, vol. ii. p. 456 (1869-71). 



5 Ann. Sci. Nat., Zool. ser. 4, vol xx. p. 156 {lQQ2i).—Aquila. 



" Loc. cit. 



'' Syst. Oiseaux de I'figypte, p. 8 (1810). 



