xxiv MAEINE EEPTILES OF THE OXFORD CLAY. 



Fig. Pag-e 



31. Steneosaurus durobrivensis : upper surface of skull 81 



32. „ „ palatal surface of skull 83 



33. ,, „ posterior portion of ventral face of skull 88 



34. ,, leedsi and St. durobrivensis : atlas and axis 92 



35. „ ,, „ middle cervical vertebra? 95 



36. ,, leedsi : dorsal vertebras 97 



37. „ durobrivensis : dorsal vertebras 98 



38. ,, „ and St. leedsi : caudal verte-bra? 101 



39. „ durobrivensis : ribs 103 



40. „ leedsi : chevrons 105 



41. „ durobrivensis and St. leedsi : eoracoid and scapula 106 



42. „ „ bones of fore iimb 108 



43. ,, leedsi : pelvis, outer side 109 



44. ,, ,, pelvis, inner side Ill 



45. „ ,. femur 112 



40. „ „ tibia and fibula 113 



47. ,, „ hind foot 115 



48. ,, ,, dorsal scutes 117 



49. ,, „ ventral scutes 117 



50. ,, obtusidens : sacral and first caudal vert ebrie 132 



51. Myclerosuclius nasutus : first sacral vertebra 137 



52. „ ,, second sacral vertebra 13S 



53. „ „ sacral vertebrae 139 



54. ,, ,, humerus and shoulder-girdie 140 



55. Metriorhynelius superciUosum : skull, from above 145 



56. „ „ skull, from side 147 



57. ,. 'Imoreli: portion of skull in front of orbit 14S 



58. „ h-achyrliynclius : palatal surface of skull 152 



59. „ „ vertical sections through the nasal canals 154 



60. „ cultridens: mandible 157 



61. ,, „ and M. superciliosum : atlas and axis 150 



62. ,, moreli : dorsal vertebra? 162 



63. „ „ sacral vertebra? 164 



64. ,, ,, sacral vertebra? 165 



65. „ here : caudal vertebra? 1 66 



66. ,, cultridens: caudal vertebra? 167 



67. ,, superciliosum : ribs 168 



68. „ „ chevrons 170 



69. „ „ and M. lave : shoulder-girdle and humerus 171 



70. „ ,, shoulder-girdle and fore limb 172 



71. „ moreli: pelvis, outer side 174 



72. ,, „ pelvis, inner side 175 



73. Upper surface of skull of the various species of Aletriorliyncltus . , 178-9 



