352 PHACOCHCEMBiE. 



Dicotyles labiatus. RM, 



Black-brown, varied ■with yellowish ; no neck-bands ; lower jaw 



white. 



Sus tajassu, Erxleb. S. Rkg. Axtim. i. p. 185. 



Sus albu'ostris, Illig., Licht. Verz. d. Jjovbl. Berl. Mm. p. 3. 



Dicotyles labiatus, Cm. R. A. i. p. 237 ; F. Ouv. Vent. Mamm. p. 210, 



t. 86. f. 2 ; Mmnm. Uth. xxvii. t. ; P. Z. S. 1848, p. 70, 1860, p. 262; 



Oray, P. Z. S. 1868, p. 45. 

 Sus labiatus, Gerrard, Cat. Bones B. M. p. 281 ; Blainv. Ost6ogr. On- 



guligr. t. 3 (foot). 

 Dicotyles albirostris, Wagner, Schreb. Saugeth. Suppl. iv. p. 306; 



P. Z. S. 1860, pp. 262, 443, 443. 

 Dicotyles torquatus, Blainv. Ost4ogr. Sus, t. 5 (skull). 

 Cuohe, Oviedo, H. N. de las Indias, p. 21. 

 Saynos, Acosta, S. iV. de las Indias, p. 287. 

 Tayacutericua, Zaet, Nov. Orb. p. 551. 

 Tagnicati, Azara, Paraguay, i. p. 26. 



Hab. South America ; Guiana, Brazil, Paraguay, Peru. 



The skulls are shorter, and the ridge on the cheek is not so large 

 and distinctly marked in younger animals as in the adults. The 

 alveolus for the hinder grinders, which are about to be developed, 

 is a kind of sheath with a sUt along the middle of its exposed side. 



The skulls of the young animals changing their teeth sometimes 

 show two small conical canines on each side of the upper, jaw, asT 

 721 a, 721 b. ] 



i 



* * Tlie premolars deciduous, their place being JiUed up by the developmentt 

 of the molars.— Qiay, P. Z. S. 1868, p. 45. 



Fam. 7. PHACOCHCERIDtE. 



Grinders formed of laminae, with numerous roots. Canines cylin- 

 drical, conical ; the upper bent upwards. Eyes and nostrils on a 

 level with the top of the head. Young not streaked. 



Phacochoeridss, Gray, P. Z. S. 1868, p. 45. 



Hah. Africa. Lives floating among reeds. Intermediate between 

 SuidcB and Hippopotamidm. 



PHACOCHCERUS. 



Cutting-teeth |- . f, deciduous ; canines \ .\; grinders f . §■ ; pre- 

 molars ^ . |. The premolars fall out, and their places are eventually 

 fiUed by the molars, as the large molar is developed and gradually 

 increased in length by the addition of a new plate to its hinder edge 

 (see Blainv. Osteogr., Sw cethiopicus, t. 8). 



