GALESATTRIDJ5. 73 



three teeth in advance of the tusk are shown, and there is 

 a space which might contain a fourth. Sections of five or 

 six cheek-teeth are also visible. The cervical vertebras, 

 as shown by a cross-section, seem to have had deep ter- 

 minal cups to the centra. The humerus, as shown by a 

 wax cast taken from the mould, appears to have the same 

 general contour as that of Cynodraco serridens. In the 

 innominate (fig. 15) the ilium and the acetabular region 

 of the ischium and pubis are preserved. The contour of 

 the ilium appears to come nearest on the whole to that of 

 the specimen referred to Tajnnocejihalus (fig. 17), but the 

 preacetabular portion is relatively larger and more pro- 

 duced. Purchased from T. Bain, Esq., 1878. 



Genus CYNO CHAMPS A, Owen \ 



Yery imperfectly known^ Apparently allied to Cynosuchus, but 

 the palate very narrow and suddenly constricted behind the tusks. 



Incisive teeth g in number, but their structure unknown. Number 

 and structure of cheek-teeth unknown. 



Cynochampsa laniaria, Owen 2 . 



The type and only described species. Of the approximate dimen- 

 sions of Cynosuchus sujjpostus, but probably with a larger and 

 narrower skull. 



Hab. South Africa. 



38229. The imperfect anterior extremity of the skull; from the 

 {Fig.) Beaufort beds 3 of the Karoo system of the Rhenosterberg 

 branch of the Sneewberg range. The type ; figured by 

 Owen in the ' Quart. Journ. Geol. Soc' vol. xvi. pi. iii. 

 figs. 1-4, and also in his ' Catalogue of the Fossil Eeptilia 

 of S. Africa,' pi. xviii. figs. 1-5. The mandible is repre- 

 sented only by the superior portion of the symphysis, and 

 exhibits the outer aspect of the incisive teeth and a section 

 of the tusks. Portions of the four upper incisives are 

 seen, as well as a section of the upper tusk of either side. 

 The nasals were evidently elongated ; the internarial 

 septum is wanting. 



Presented by Sir George Grey, K.C.B., 185S. 



1 Quart. Journ. Geol. Soc. vol. xyi. p. 61 (1860). 2 Loc.dt. 



3 See Quart. Journ. Geol. Soc. vol, xxiii. p. 143. 



