MUE^NOSAUEUS PLATTCLIS. 137 



Anterior caudal vertebrae : 



Length in mid-ventral line 4-4 4-2 



Width of posterior end of centrum 6-2 6-4 



AYidth to end of rib-facets 7-8 7'9 



Height of posterior end of centrum 5-3 5*1 



Height to top of arch 7'8 ? 



Shoulder-girdle (PI. VI. fig. 3 ; text-fig. 68) : 



Width at hinder angle of glenoid cavity (exaggerated b^' 



crushing) 50'0 



Greatest length of interclavicle ll'O 



Length on middle line of interclavicle 7"3 



Greatest width of interclavicle 20'5 



Greatest length of scapula 35-7 



Length of scapular symphysis 17'0 



Antero-posterior diameter of coraco-scapular foramen . . lo'O 



Transverse diameter of ditto ] 1"5 



Humerus (text-fig. 69 A) : 



Length 33-7 



Greatest width at upper end (crushed) 12-7 



Least antero-posterior diameter of shaft 9 1 



Greatest width at lower end 20*4 



Eadius : length 9'9 



width at upper end lO-O 



Ulna : length 7'5 



width 8-5 



lUum : length 20-6 



width at lower end (crushed) 7' 9 



Femur (text-fig. 69 B) : length ■ 31-4 



width at upper end 8"3 



least antero-posterior diameter of shaft . 6*8 



width of distal end 18-5 



R. 2425 (Leeds Coll. 24). Portions o£ a skeleton of a very large individual with the bones, which 

 are uncrushed, of exceptionally massive structure. The portions preserved are : — the 



posterior part of the right ramus o£ the mandible, a tooth, nine cervical vertebrse (the 



anterior ones with the longitudinal lateral ridge well developed and the centra a little 

 longer than in M. durohrivensis), two dorsals, five caudals (text-fig. 58), numerous 

 dorsal (about 34) and ventral (about 18) ribs, ? chevrons, humeri, right ilium, femora, 

 tibia and fibula, and numerous bones of the paddles. 



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



Length of the mandible from posterior angle to coronoid 



process of articular-surangular 14'5 



Width of articular surface for quadrate 3-0 



