190 MAEINE EEPTILES OF THE OXFOED CLAT. 



E. 2032 (Leeds Coll. 31). Imperfect skull and mandible, atlas and axis, four other cervical 

 vertebras, seventeen dorsals, two sacrals, and thirty-seven caudals, fragments of ribs, 

 portion of a scapula, imperfect coracoids, humerus, ilium, part of ischium, femur. The 

 restored coracoid is figured by Hulke (Proc. Zool. Soc. 1888, p. 428, fig. 1) as a 

 scapula. 



The dimensions (in centimetres) of this specimen are : — 



Skull : length in middle dorsal line (approx.) 59-5 



,, of nasals 20-6 



distance between nasals and premaxillae 7 - 9 



least width between orbits 80 



length of the frontal anterior to temporal fossa? . . . 8 - 



Mandible : length (approx.) 67-0 



length of symphysis (jipprox.) 27'0 



depth at coronoid angle 6*8 



■cr , , Atlas Caudals at bend of tail. 



Vertebras 



& axis. , " s 



Length of centrum in mid- 

 ventral line 6-2 2-8 2-5 2-0 2-1 



Width of posterior face of 



centrum 3'0 2-4 2-1 1-9 2-0 



Height of posterior face of 



centrum 3-4 2-6 2-6 2-7 2-7 



Height to top of neural spine. 6*5 4'9 6-0 7'5 



The other vertebrae are too much crushed to give any reliable measurements. The 

 caudals in front of the bend in the tail are peculiar in bearing on the sides of their 

 anterior and posterior borders prominences which give the outline of the articular 

 surfaces a hexagonal form. 



Scapula : width of articular end 2 - 5 



Coracoid : length (approx.) 8*0 



width of upper end 4*5 



Humerus : length 7*9 



width of head 2-0 



„ at deltoid crest 1*9 



Femur : length in straight line 25'0 



width of head 4*4 



long diameter of middle of shaft 



2-7 



R. 2044 (Leeds Coll. 19). Skull and mandible less crushed than usual, so that the true form of the 

 rostrum is, to a great extent, preserved. 



Some dimensions (in centimetres) of this specimen are : — 



Skull : leDgth in middle dorsal line 57-5 



„ to anterior end of nasals 3S*7 



„ of nasals 22-5 



