80 ANOMODONTIA. 



**Genus HYORHYNCHUS, Seeley ». 



Hyorhynchus platyceps, Seeley 2 . 



Known by the undermentioned specimen, which indicates an 

 individual of the approximate size of the type of Lycosaurus 

 partialis, and does not show any characters by which it can be 

 generically separated from Lycosaurus. 



Hah. South Africa. 



R. 872. The imperfect cranium ; from the Karoo system of the 

 {Fig.) Gouph district, Beaufort West. Figured by Seeley in the 

 4 rhil. Trans.' for 1889, pi. xv. figs. 1, 3. The occipital 

 region and muzzle are wanting, but the remaining portion 

 retains its original contour. The direction of the post- 

 orbital bar serves to distinguish the specimen from JEluro- 

 saurus. Compared with the flattened type skull of 

 Lycosaurus pardalis there appears to be, so far as can 

 be seen, a marked resemblance between the two. Thus 

 in L. pardalis the forward direction of the postorbital 

 bar is clearly visible on the left side, and the orbits appear 

 to have been lateral. The contour of the anterior border 

 of the left temporal fossa is also seen to have been similar 

 in the two specimens ; and the width of the interorbital 

 bar seems to have been likewise the same. 



Purchased from T. Bain, Esq., 1880. 



Genus TIGRISUCHUS, Owen 3 . 



Known only by the imperfect anterior extremity of the cranium. 

 Perhaps allied to Cynodraco, but with only three upper incisive 

 teeth. 



Tigrisiichiis simus, Owen 4 . 

 The type and only described species. Fully equal in size to 

 Cynodraco serridens, but with relatively larger incisive teeth. 

 Hob. South Africa. 



R. 1721. The anterior extremity of the cranium, in a damaged con- 



(Fig.) dition : from the Karoo system of the Sneewberg range. 



The type ; figured by Owen in his ' Catalogue of the 



Fossil lleptilia of S. Africa,' pi. xvi. figs. 6-9. Fragments 



of the tusks and sections of the roots of the three pairs of 



1 Phil. Trans, for 1889, p. 242. 2 £oc. cit 



3 Cat. Foss. Eept. S. Africa, p. 17 (1876). 4 Loc. cit. 



