Sinclair — A Large Parasuchian. 461 



sculptured with minute raised lines and has a few broad 

 grooves toward the base. In others (fig. Id), of a type 

 agreeing with the description of Clepsysaurus veatlei- 

 anus, the anterior serrate cutting edge exists only on the 

 apical portion of the crown, the posterior edge extending 

 to its base. The crown is rounded in front, oval in cross 

 section at the base, with enamel almost smooth to finely 

 sculptured with raised lines. The cutting edges may be 

 separated by very unequal convex surfaces (figs. Id, If). 

 Finally, in teeth resembling those from Phoenixville 

 referred to Palctoctonus, there are serrate cutting edges 

 both front and rear extending to the base of the crown 

 (figs, lh-j), the outer face of the crown strongly convex, 

 the inner less so, and with the crown showing the same 

 fine sculpturing already noted. Some teeth have a con- 

 striction between crown and fang (figs. Id, lh), others do 

 not (fig. lc). 



A number of well preserved dermal scutes were col- 

 lected with the other bones, the series illustrated in figs. 

 7-10 showing some of the principal types. .These are 

 both keeled and unkeeled and have the dorsal surfaces 

 pitted with a coarse irregular sculpture. 



Measurements 



Femur, greatest length 415 mm. 



Ilium, length, along dorsal margin 231 



depth, dorsal margin to process between ischial 



and pubic articular surfaces 139 



Sacral vertebra, greatest transverse extent across sacral 



ribs 230 



middle of ventral surface of centrum 



to top of spine 212 



anteroposterior diameter of spine at 



tip 46 



length of centrum, anteroposterior^ . . 60 

 greatest width of expanded rib end, 



anteroposteriorly 69 



Last presacral, middle of ventral surface of centrum to 



top of spine 214 



anteroposterior diameter of spine at tip 47 

 length of centrum, anteroposteriorly . . 60 



width of rib at tip (approx.) 32 



Thoracic rib, capitulum to tuberculum, over all 86^ 



greatest diameter of shaft at middle .... 26 



