ON NEW FOSSIL REPTILES. 



859 



52. On some new Fossil Reptiles fro!n the Permian and 

 Triassic Beds of South Africa. By R. Bkoom, D'.Sc, 

 C.M.Z.S. 



[Received May 13, 1912 : Read June 4, 1912.] 



(Plates XC.-XOIII.*) 



Index. 

 Systematic : l'*Se 



Tauvops macrodon, gen . et sp. n 859 



Galeops whaitsi, gen. et sp. n 860 



Scymnognathus whaitsi, gen. et sp. n 861 



^li^lurosaurus striatidens, sp. n 863 



Pristei-ognathus platyrhiiius, sp. n 863 



Alopecovliinus parvidens, gen. et sp. n 864! 



Ictidognatlms hembuvyi, sp. n 865 



Endothiodon whaitsi, sp. n 866 



E. platj'ceps, sp. n ■ 867 



Prodicynodon beaufovtensis, sp. n 867 



Dicy nodon to include Oudeuodon 868 



Pristerodon to include Opisthoctenodou 868 



Dicyuodon laticeps, sp. n 868 



D. psittacops, sp. n 869 



D. lutnceps, sp. n °'" 



Emydops minor, gen. et sp. u 871 



Ictikopsis elegans, gen. et sp. n 872 



Nythosaurus bvowui, sp. n 874 



Endothiodon subdivided : see Addendum 875 



Emydochampsa, gen. n 87o 



The following series of new reptiles forms an important addition 

 to our knowledge of the Karroo faunas. The majority have 

 been found by the Rev. J. H. Whaits, of Beaufort West Of 

 the others one was found by Mr. Alfred Brown, of Aliwal North, 

 one by Mr. H. J. Hembury, and a few by myself. 



Suborder Dinocephalia. 

 Taurops macrodon, gen. et sp. n. (PL XC. fig. 1.) 

 The snout of this large Dinocephalian was obtained at Bos- 

 manshoek at the foot of the Komsberg. Though so little has 

 been obtained we have enough to give the distinguishing characters 

 of this new type. In size it almost equals Tcqnnocephakts 

 atherstonei, but the snout though narrower is considerably deeper, 

 and it differs in the great degree of development of the teeth, 

 especially of the incisors. Where the snout is broken across, 

 about tlie transverse plane of the back of the anterior nares, the 

 width is 190 mm. and the height about 100 mm. The anterior 

 nares are unusually small and situated about 90 mm. from the front 

 of the snout. The distance between the two nostrils is about 

 45 mm The condition of the bone renders it almost impossible 

 to make out the sutures, theonly one that is distinct being that 

 between the two premaxillaries. 



* For explanation of the Plates see p. 875. 



