204 



INDEX. 



Mursenosaurus (cotii.). 



premasilla, 88. 



vomer, 88. 



palatine, 89. 



pterj'goid, 89. 



mandible, 89, 90 *. 



vertebral column, 92* 94*, 95*, 96*, 

 98 *, 99 *, 100*, 101 *, 102 *, 103 *, 

 104*. 



ribs, 105, 106*. 



shoulder-girdle, 106, 108 *, 109 *. 



fore paddle. 111, 112 ». 



pelvic girdle, 115, 116 *. 



hind paddle, 112 *, 117. 



restored skeleton, 118 *". 



beloclis, 140, 144. 



durobrivensis, 127. 



■ leedsi, 120. 



platyclis, 134. 



plicatus, ]20, 127. 



Nothosaurus, 107. 



shoulder-girdle, 108 *. 

 pelvic girdle, 114*. 



OPHTHALMOSAritlD^, 2. 



Ophthalmosaurus, 2. 



skull, 4-35 *. 



basioccipital, 5 *. 



exoccipital, 6, 7 *. 



supraoccipital, 7 *. 



prootic, 9, 10 *. 



opisthotie, 9, 10 *. 



stapes, 10*, 11. 



basisphenoid, 12, 13 *, 14 *, 15 »^. 



parasphenoid, 15*, 16. 



squamosal, 16, 17* 



supratempoi-al, 18. 



quadrate, 18 *. 



quadrato-jugal, 19, 20*. 



jugal, 20 *. 



postorbital, 17 *, 21. 



lachrymal, 21 *, 22. 



nasal, 22 *. 



maxilla, 23 *. 



premaxilla, 24. 



parietal, 24, 25 *, 26 *. 



Ophthalmosaurus (cont.). 



frontal, 26 *, 27. 



postfrontal, 27 *. 



prefrontal, 28. 



pterygoid, 28, 29 *. 



palatine, 29 *. 



vomer, 30 *. 



sclerotic ring, 31. 



mandible, 31, 32 *, 33 *, 34 *, 35 *. 



dentition, 36. 



hyoid arch, 36. 



Tertebral column, 36, 37*, 39*, 40*, 

 41 *, 42 *, 43 *, 44 *, 45 *. 



ribs, 45 *. 



shoulder-girdle, 46, 47*, 48*, 50*, 

 51 *. 



fore paddle, 49, 52 *, 55 *. 



pelvic girdle, 56, 57 * 58 *, 59 *. 



hind paddle, 58, 60 *. 



restored skeleton, 62 *. 

 icenieus, 61. 



Pantosaurus, 4. 

 Picrocleidus, 139. 

 beloclis, 140. 



skull, 141. 



basioccipital, 141. 



quadrate, 141. 



vertebriB, 141. 



shoulder-girdle, 140 *, 142. 



fore paddle, 143. 



femur, 144. 



sp., 146. 



Plesiosautua, 77. 

 Plesiosaurus durobrivensis, 164. 



eurj'merus, 164. 



leedsi, 120. 



oxoniensis, 164. 



plicatus, 120. 



(?) rostratus, shoulder-girdle, 108*. 



Polycotylus, 91, 113. 



Sauranodon, 2, 3. 

 Saueoptebxgia, 77. 

 Shastasaurus alexandrae, 47. 



osmonti, 47. . 



Sphenodon, 156. 



