124 Annals of the Soutli African Museum. 



At this point a number, possibly three, are missing. We have then 

 a series of nine more — probably the 32nd to the 40th — and finally a 

 very small isolated caudal vertebra, possibly the 47th. 



The whole shoulder girdle is practically complete, including the 

 interclavicle and clavicles. Of the right limb the humerus, radius, 

 and ulna are almost perfect. The left humerus is missing and the 

 left radius and ulna considerably weathered. K considerable 

 number of phalangeal bones have been found, but as they are 

 detached it is impossible to say to which digits they belong. 



The pelvis is well preserved, only a few small fragments being 

 missing. The right hind limb has the femur, tibia, fibula, and large 

 tarsal bone in almost perfect preservation, while the bones of the left 

 limb, though in very fair condition, are somewhat weathered. Two 

 toes have been found side by side with the bones but little displaced. 

 These are believed to be the 2nd and 3rd toes of the left foot. 



Owing to the crushed condition of the skull and to the fact that 

 only very few of the sutures can be distinctly made out, it seems 

 unnecessary to give any lengthy description of it, especially as it 

 reveals few previously unknown anatomical features. 



With regard to the species of the skeleton there may be a little 

 doubt, as indeed is the case with almost all Karroo fossil reptilian 

 remains, owing to the various ways in which the specimens may be 

 crushed. Four species of Pareiasaurus have been described— 

 PareiasauriLS serriclens, and P. hoynhicUns, by Owen, and P. haiyii, and 

 P. rassouzoi by Seeley.'^' Of these P. haini is represented by an 

 almost complete skeleton. The type of P. serriclens was a very 

 badly crushed skull, which unfortunately has been lost, only a cast 

 of it and a fragment of the lower jaw being now left for purposes of 

 comparison. P. bombidens is represented by an imperfect anterior 

 portion of a skull. Doubt has been expressed as to whether 

 P. bombidens is really distinct from P. serridens, and as the type 

 of the latter is now lost it is difficult to settle the question. Seeley t 

 described the skull and portions of the skeleton of a specimen which 

 he referred to P. bombidens pi-ovisionally. P. russomvi is only 

 known by a fragment of the jaws. I have compared the skull of the 

 present specimen with the cast of P. serridens, and its general 

 proportions agree so closely as to leave little doubt that the specimen 

 belongs to the same species. Unfortunately the surface of the 



* " Further observations on Parciasauni^," Phil. Trans. 1892. For convenience 

 referred to hereafter as " II." 



t " On PareiaHduru.'i boiiihklens Owen, &c.," Phil. Trans., 1888. For conveni- 

 ence referred to hereafter as " I." 



