122 MAEINE EEPTILES OF THE OXFORD CLAT. 



Coracoid: -n-idth oE eacli coracoid at lower angle of glenoid 



cavity 16'0 (app.) 



length from anterior angle of scapular surface to 



postero-exterual angle 31 -5 



Humerus (PI. IV. fig. 7) : length 28-3 



width of head (antero-posterior) . . 6-3 



„ „ with tuberosity . . 9*8 



„ shaft at narrowest . . . 7'0 



„ distal end 17'0 



Eadlus (PL IV. fig. 7) : greatest length 9"1 



„ width S'3 



Ulna (PI. IV. fig. 7) : greatest length 5'7 



-width 7-4 



Ischium(Pl. IV. fig. 9): length 8-1 



width from acetabulum to symphysis. 17'S 



Hium (PL IV. fig. 8) : length 18-1 



Mddth of upper end 5'5 



„ lower end 6'1 



Femur (PL IV. fig. ]0): length 26-3 



diameter of head 7'0 



width of upper end (with trochanter). 7"9 



„ shaft at narrowest .... 4-8 



„ distal end 13'3 



Tibia (PL IV. fig. 10) : greatest length 6-9 



„ ^vidth 6-6 



Fibula(Pl.IV. fig. 10): greatest length 5-2 



„ width 6'3 



E.. 2422 (Leeds Coll. 21). Greater part o£ a skull and skeleton of an old individual. The parts 

 preserved are a much broken skull (basioccipital, basisphenoid, exoccipital, and 

 opistliotic figured, text-fig. 44), a nearly complete mandible, atlas, axis, and forty-two 

 other cervicals (in these the sutures between the centra and the neural arches and ribs 

 are obliterated, but in most cases the ribs have been broken off), nineteen dorsals (much 

 distorted), and twenty-four caudals (in these the arches, ribs, and, in many cases, 

 chevrons are fused with the centra) ; numerous, ribs, imperfect shoulder-girdle (in this 

 ossification is complete, the coraco-scapular symphysis being continuous ; the clavicular 

 arch is not preseiwed) ; fore paddles ; ilia ; ischium ; part of pubis; hind paddles. 

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

 Skull (text-fig. 44) : 



Length from posterior border of pineal foramen to tip of 



snout 18-7 



Length of basioccipital (approx.) 4-0 



Width of basioccipital at lateral processes 5'5 



Vertical diameter of occipital condyle ... .... 2-8 



W^idth of articulation of quadrate . . 3'0 



Mandible : 



Length 34-2 



„ of symphysis (approx.) 5-4 



