120 CARNIVORA. 



M. 1700. Several calcanea, of various sizes. 

 M. 1701. Several astragali, of various sizes. 

 M. 1702-3. Numerous metapodial bones, of various sizes. 



M. 1704. Four specimens of the axis vertebra; and a fifth appa- 

 rently belonging to a distinct species. 



M. 1705. Two specimens of the sacrum. 

 M. 1706. Numerous caudal vertebrae. 

 M. 1412. Numerous limb-bones. 

 M. 1380. Numerous canine teeth. 

 M. 1707. Ditto. 



Genus ICTICYON, Lund 1 . 

 Syn. Speothos, Lund 2 . 



Dentition (usually) : I. | C. \, Pm. |, M. \. In a recent female 

 specimen of J. venaticus in the Museum of the Eoyal College of 

 Surgeons (No. 533) a small m. 2 i present ; and in a large recent 

 male skull in the British Museum m . 2 is absent on both sides ; the 

 range of variation in the number of true molars is therefore [j^- 

 In its dentition this genus is the most specialized of the Canince ; 

 this being shown by the suppression of the hinder molars, and by 

 the absence of the inner cusp of the lower carnassial. In a lineal 

 classification it is impossible to assign a satisfactory position to the 

 genus, since it is necessary that Cynodictis should be placed next to 

 the Viverridce, and Canis close to Amphicyon, which comes next to 

 Dinocyon and Hycenarctos. 



flcttcgon bmattcuS, Lund 3 . 

 Syn. Cynogale venatica, Lund 4 . 



(?) Speothos pacivorus, Lund 5 . 

 Ict.icyon affinis venaticus, Lund 8 . 

 (?) Icticyon major, Lund 7 . 



1 K. Danske Vid. Selsk. Skr. vol. xi. p. 62 (1845). 



a Ibid. vol. viii. p. 93, pi. xix. figs. 1, 2 (1841). The probable generic iden- 

 tity of Speothos with Icticyon has been indicated by Huxley (Proc. Zool. Soc. 

 1880, p. 280) ; the former name has the priority. The same remark applies to 

 the specific names pacivorus and venaticus. 



3 Ibid. vol. ix. p. 201 (1842), Cynogale. * Loc tit 



6 Ibid. vol. viii. p. 93 (1841). 



6 Vide H. Gervais and Ameghino, ' Mammiferes fossiles de 1'Amerique du 

 Sud,' p. 35 (1880). T Rid 



