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ON A NEW CYNODONT EEPTILE (^JLUBOSUCHUS 



BBOWNI). 



By E. Bkoom, M.D., D.Sc, Victoria College, Stellenbosch. 



(Bead June 26, 1906.) 



(Plate X.) 



The fossil about to be described was discovered by Mr. Alfred 

 Brown near Aliwal North, and represents the anterior part of a small 

 Cynodont reptile. The remains are in a fairly hard sandstone, and, 

 owing to the softness of the bone, cannot be very satisfactorily 

 developed. Of the skull there are preserved a few remains of the 

 cast of the upper cranial bones sufficent to give a satisfactory idea of 

 the outline, and a very good impression of the palate showing the 

 teeth. There are remains of the first twelve vertebrae, and a good 

 deal of both scapular arches and of both anterior limbs. I propose 

 to name the fossil in honour of the discoverer, who has spent so many 

 years of his life in the interests of science, and who has already 

 brought to light so many new forms. 



JElurosuchus Browni, g. et sp. nov. 



Though the skull is badly preserved most of the important 

 •characters can be made out. The only previously described 

 Cynodont which bears much resemblance to it is $ the type of 

 Microgomplwdon oligocynus, Seeley, but from this form it differs 

 entirely in the dentition. As in Gomphognathus , Microgomphodon, 

 and Diademodon, the skull is broad and flat. The orbits look for the 

 most part upwards and are of large size. The temporal fossa is 

 relatively small as in Microgomphodon, and measures more trans- 

 versely than antero-posteriorly. The whole skull measures 92 mm. 

 in length and 62 mm. in width. The parietal region measures 

 about 10 mm. across. The postorbital arch is very narrow. The 

 palate, which is fairly well preserved, is typically Cynodont, there 

 being a well-developed secondary palate. The anterior part is 



