THE ANOMODONTS, OR MAMMAL-LIKE REPTILES 2621 



triangular, with the double nostrils situated 

 near the extremity of the muzzle, some dis- 

 tance in advance of the sockets of the eyes, 

 which occupy a nearly central position. In 

 all these forms, the skull has large temporal 

 fossae in the hinder part of the upper surface; 

 but in the Wall-toothed or Pariasaurian Ano- 

 modonts, as shown in the cut, the hinder part 

 of the skull was roofed over by bone, in the 

 manner characterizing the L,abyrinthodont 

 Amphibians, to which these reptiles were al- 

 lied; a peculiar sculpturing of the surface of 

 the skull being another point of resemblance. 

 In the series, of which the skull is figured, a 



number of spines surmounted the head; but these were wanting in the African 

 pariasaur, which was a gigantic creature, with a somewhat frog-like head, an apol- 

 ogy for a tail, and powerful short limbs, in which the toes were armed with long 

 claws. 



UPPER SURFACE OF THE SKULI, OF A 



WAI,!,- TOOTHED ANOMODONT. 



(One-fourth natural size.) 



