METEIOEHYNCHUS SUPEECILIOSUM. 183 



Ischium: length of symphysial border 8 - 5 



width from articular end to posterior angle (approx.) 8-6 



„ of neck at narrowest 2*6 



greatest width of proximal end 3*5 



Pubis : greatest length 7'8 



width of neck at narrowest I/O 



,, upper end 1*7 



Hind limb : 



Femur : length in straight line 19-3 



greatest width of proximal end 3'4 



long diameter of the middle of the shaft .... 2-2 



Fibula : length 6*3 



B. 1530. Imperfect skull and mandible, teeth, atlas, axis and five other cervical vertebrae, sixteen 

 dorsals, two sacrals and thirty-five caudals, of which eighteen bear ribs ; numerous 

 ribs (text-fig. 67), coracoid, scapula, humeri, ilia, ischia, pubes, femora, tibiae, fibula, and 

 numerous bones of the hind feet ; a few chevrons (text-fig. 68). 



In this skeleton the back of the skull is wanting, but the anterior portion is much 

 less crushed than usual ; the same is true of the mandible. The vertebras have nearly 

 all lost their neural arches and are much crushed. The coracoid seems to have had a 

 notch instead of a foramen. 



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



Distance between premaxillse and nasals 9-0 



Length of mandibular symphysis 36-0 



The cervical and dorsal vertebrae are mostly too much crushed to supply measure- 

 ments of any value, but the following are probably nearly accurate : — 



Vertebra;. 



Middle 



First, 

 caudal. 





Postei 



•ior eaudals. 



dorsal. 



a. 





b. c. 



4-3 



3-3 



2-6 





2-1 2-0 



3-5 



3-5 



2-Q 





2-0 2-0 



3-2 



3-7 



2-3 





2-5 2-5 



Length of centrum in mid- 

 ventral line 4 - 3 



"Width of posterior face . 

 Height of posterior face . 

 a, last vertebra before downward flexure ; b, c, two vertebras at downward flexure. 



The length of the centra in b and c along their dorsal edge is 2'9 and 2 - 7 

 respectively. 



Length of rib of atlas 5-0 



„ „ axis 7'9 



Shoulder-girdle : 



Coracoid : length 8-0 



width of upper end . . . ......... . 4-9 



shaft 1-8 



„ distal expansion .... (npprox.) 5 - 



