(270) 



(8). Notice of some New South African Fossil Amphibians and 

 Reptiles. Ry E. BROOM, M.D., B.Sc. 



(With one text figure.) 



TREMATOSAURUS KANNEMEYERI, n. sp. 



The type of this new species is the centre part of a skull received 

 from Dr. Kanneineyer and obtained by him in the Orange River 

 Colony. Posteriorly it is broken obliquely across a little behind the 

 orbits, and in front is broken through about 65 mm. in front of the 

 orbits. 



The skull is evidently that of an animal about twice the size of 

 Trematosaurus brauni, and it has probably differed from the type 

 species in having the snout relatively considerably longer. 



The orbit measures 31 mm. by 20 mm., and the interorbital 

 measurement is 49 mm. At the back of the orbit the width of 

 the skull is 94 mm., and at transverse plane 60 mm., in front of the 

 orbit 64 mm. 



The surface of few of the bones is preserved, but where it is found 

 it is seen to be pitted as in T. brauni, and a groove runs up the 

 snout and passes along nearer to the middle line than to the orbit. 



The frontal does not enter the orbital margin, and passes much 

 further forward than in T. brauni, the anterior end being in advance 

 of the portion preserved. 



The prefrontal is large, and ends about 55 mm. in front of the 

 orbit. 



The postfrontal is long and narrow, and, so far as preserved, fairly 

 similar to that figured by Burmeister in T. brauni. 



The postorbital is peculiar. It forms 9 mm. of the orbital margin, 

 but behind the orbit it becomes rapidly constricted till it measures 

 only 4 mm. across, and then slowly widens out till it measures 

 13 mm. The preserved portion measures 43 mm. in length, and 

 probably at least 10 mm. are missing. 



The maxillary teeth are not well preserved. Where preserved they 

 are small and uniform, and 8 occupy 11 mm. 



The para-sphenoid (vomer) is very narrow. 



