IIIPPOPOTAMID.^^ 393 



Dentition : /. f , c. \, jx |, wi. ^ = 38 ; build comparatively 

 light ; bodily size and head relatively small ; eyes not markedly 

 prominent ; limbs proportionately much longer than in 

 typical genus, with the feet (fig. 56) approximating in 

 general characters to those of pigs, tlie lateral digits, 

 although touching the ground, free from webbing, and the 

 two middle toes, in spite of a basal web, subspatulate, and 

 capable of a considerable amount of lateral spreading. 



Eestricted at the present day to West Africa. 



CH.CEEOPSLS LIBEEIENSIS. 



Hippopotamus minor, Morton, Proc. Ac. Sci. PJiilad. 1844, p. 14; uec 

 Desmarest, 1882, 



Hippopotamus liberiensis, ilfor^o/i, Journ. Ac. Sci. Philad. ser. 2, vol. i, 

 p. 232, 1849 ; Flower and Garson, Cat. Osteol. Mus. B. Coll. 

 Surg. -pt. ii, -p. 365, 1884 ; Lydekher, Pal. hid. {Mem. Gcol. Siirv. 

 India), ser. 10, vol. iii, p. 47, 1884, Great and Small Game of 

 Africa, p. 532, 1999, Game Animals of Africa, p. 412, 1908 ; 

 Flower, Proc. Zool. Soc. 1887, p. 612; Flower and LydeMer, 

 Study of Mammals, p. 280, 1891 ; liendall. Great and Small 

 Game of Africa, p. 543, 1899 ; Weher, Sdugethiere, p. 646, 1904. 



Diprotodon liberiensis, Duvernoy, C. R. Ac. Sci. Paris, vol. xxix, 

 p. 277, 1849. 



Hippopotamus (Tetraprotodon) liberiensis. Falconer, Journ. Ac. Sci. 

 Philad. ser. 2, vol. 1, p. 237, 1849, PaL Mem. vol. ii,p. 405, 1868. 



Choerodes liberiensis, Leidy, Proc. Ac. Sci. Philad. 1852, p. 52. 



Choeropsis liberiensis, Leidy, Journ. Ac. Sci. Philad. ser. 2, vol. ii, 

 p. 213, 1853; Milne- Edwards, Rech. Mamvi. p. 77, 1868; Gray, 

 Cat. Carnivora, etc. Brit. Mus. p. 357, 1869, Hand-List Thick- 

 shinned Mamm. Brit. Mus. p. 79, 1873 ; Macalister, Proc. B. 

 Irish Ac. ser. 2, vol. i, p. 494, ]873; Peters, Monatsher. Ak. 

 Berlin, 1873, p. 445 ; Jentink, Notes Leyden Mus. vol. x, p. 29, 

 1885; Chapman, Proc. Ac. Sci. Philad. 1893, p. 185; Beaux, 

 Zool. Anz. vol. xl, p. 227, 1912. 



Ditomeadon liberiensis, Gratiolet, Gervais' Zool. et Pal, Gen. ser. 1, 

 p. 250, 1860, Becherches Anat. Hi^ypopotame, p. 202, 1867. 



Hippopotamus (Tetraprotodon) liberianus, Gerrard, Cat. Bones 

 Mamm. Brit. Mus. p. 284, 1862, errorim. 



Tetraproctodon liberiensis. Gray, Cat. Carnivora, etc. Brit. Mus. 

 p. 357, 1869, misquotation of Falconer's Hippopotamus (Tetra- 

 protodon) liberiensis. 



Hippopotamus (Choeropsis*) liberiensis, Lydekker, Ward's Becords 

 of Big Game, ed. 7, p. 451, 1914. 



Typical locality St. Paul's Eiver, Liberia. 



Type in Museum of Philadelphia Academy of Natural 



Science. 



* Errorim, Choeropotamus. 



