348 CATALOGUE OF UNGULATES 



58. 5. 4. 43 (718, /i). Skull. 



Purchased {Zoological Society), 1858. 



59. 8. 16. 4 (718, k). Skull. " Borneo" = (?) Boru. 



Purchased {Wright), 1859. 

 67. 4. 12. 209. Skull, young. Figured in Gray's Hand- 

 List, pi. xxvii, fig. 1. 



Lidth de Jeude Collection, purchased, 1867. 

 67. 4. 12. 221 (718, o). Skull. Same history. 



67. 4. 12. 222(718,j?:i). Skull. Same history. 



67. 4. 12. 223 (718, q). Skull. Figured in Seba's The- 

 saurus, vol. i, pi. ii, fig. 3, 1734. Sctme history. 



III. Genus POTAMOCHCERUS. 



KoL-opotamus, Gray, List Mamm. Brit. Mus. p. xxvii, 1843, nomen 

 nudum. 



Choiropotamus, Gray, List. Mamm. Brit. Mus. p. 185, 1843, Ann. 

 Mag. Nat. Hist. ser. 2, vol. x, p. 282, 1852 ; ncc Choeropotamus, 

 Cuvier, 1822. 



Potamochoerus, Gray, Proc. Zool. Soe. 1852, p. 129, 1854, Ann. Mag. 

 Nat. Hist. ser. 2, vol. xv, p. 65, 1855, ser. 4, vol. xi, p. 434, 1873, 

 Cat. Carnivora, etc. Brit. Mus. p. 340, 1869, Hand-List Thicl-- 

 sTtinned Mamm. Brit. Mus. p. 56, 1873 ; Major, Proc. Zool. Soc. 

 1897, p. 359 ; SteJilin, Ahli. schweis. pal. Ges. vol. xxvi, p. 70, 

 1899; W. L. Sclater, Fauna 8. Africa, Mamm. vol. i, p. 273, 

 1900. 



Nj'ctochoerus, Heuglin, Nova Acta Ac. Cces. Leop.-Car. vol. xxx, 

 Naohtrag 2, p. 7, 1863. 



Dentition : i. f , e. -j-, p. 4, m. I = 42 ; teeth of the same 

 general charactei' as in Sus, but the canines (the summits of 

 the upper pair of which are completely abraded by the lower 

 ones) smaller and the molars of a relatively, simple type, 

 with thick enamel ; in adult male skulls (fig. 52) a bony 

 tuberosity or ridge above the root of the upper canine and a 

 second on the sheath of the same, the upper ridge in aged 

 individuals developing a horny capsule ; ears with terminal 

 tufts of long hairs ; coat more abundant, less bristly, and 

 frequently much more brightly coloured than in Sus. Young 

 striped. 



The thickness of the enamel of the molars, coupled with 

 their simple structure, suggests affinity ^^'ith Sus celehensis 

 and S. verrucosus. 



