The cheek-tooth are arranged in a continuous and somewhat curved 

 row. There are seven in situ., three molars and four premolars, but 

 immediately in front of the first premolar are the remnants of two 

 roots of a small tooth ; the posterior root is the larger and is transversely 

 extended, the anterior is small and round. In another example it can 

 be seen that the crown of this tooth was comparatively complex and 

 premolariforncL From its position this tooth must be a canine, and its 

 peculiar condition in this form seems to have only one parallel among 

 mammals, namely in Pliohyrax from the Lower Pliocene of Samoa, 

 described by Osborn. The premaxilhe with the incisors are unfor- 

 tunately wanting. 



The molars are similar to those of Hyrax and are chiefly remarkable 

 for the development of the styles, particularly of the parastyle, and in 

 the last molar of the nietastyle also. These styles, together with the 

 paracolic and nietacone, form a very complexly folded ectoloph. 



The premolars are simpler ; in them the ectoloph is composed of 

 three elements the posterior of which is continued inwards, forming a 

 transverse crest along the posterior border of the tooth. The protoloph 

 consists of a cusp which gives a V-shaped surface when worn, the 

 posterior larger limb of the V being united with the postero-external 

 cusp. In the front premolar the antero-external cusp is larger than 

 in the others and forms the anterior angle of the tooth. 



A portion of a mandible in the collection probably belongs to this 

 species. The ramus is very deep posteriorly and narrows gradually 

 forward. There are three molars and three premolars in n/Y/v, together 

 with traces of a first premolar. Each tooth consists of a pair of 

 crescents, the postero-internal ends of each being connected with a small 

 cusp (? stvlid). The last molar possesses in addition a crescent if orm 

 talon. 



The dimensions are : 

 Length of tooth scries (molars, premolars and canine) (V> millimetres. 



Length of molar and premolar series 57 ,, 



Length of premolar series 3G „ 



Greatest [width of last molar 14 „ 



Greatest width of last premolar 9 „ 



Width of roof of skull at the postporbital processes... ">(> „ 



These seems no doubt that this animal is a member of the Hyracoidea, 

 of which it is, at present, the earliest representative known in the Old 

 World. 



'I'hc generic name Saghatherium is derived from the anoient ruin 

 known asQasrel Sagha, sifal&tecl in the same neighbourhood. 



