XV111 
LIST OF SPECIES. 
5 Plesiosaurus microdeirus (Seeley). 90. c, p. 40. 
6 Plesiosaurus euryspondylus (Seeley). 90 .f p.41. 
7 Plesiosaurus platydeirus (Seeley). 90.^, p. 41. 
8 Plesiosaurus pachyomus (Owen). ? 93. a, p. 43. 
9 Plesiosaurus neocoiniensis (Campiche). J .ei. 6 , p. 47. 
10 Plesiosaurus ophiodeirus (Seeley). 94 . d, p. 44. 
11 Plesiosaurus constrictus (Owen). 92 ./ p. 42. 
Dixon’s Geology of Sussex, PI. 37. 
12 Plesiosaurus pcecilospondylus (Seeley). J.e5.5, p. 48. 
Stereosaurus (new genus) *. 
13 Stereosaurus platyomus (Seeley). 93.6, p. 43. 
14 Stereosaurus cratynotus (Seeley). 94 . c, p. 44. 
15t Stereosaurus stenomus (Seeley). 93 . d, p. 43. 
16 Polyptychodon interruptus (Owen). 95, p. 45. 
Suppl. 3 to Cret. Kept. I860; Palseont. PI. 4—6. 
Chelonia. 
Rhinochelys (new genus). 
1 Phinochelys mastocephalus (Seeley). 
2 Phinochelys eurycephalus (Seeley). 
3 Phinochelys pulchriceps (Owen). 
Cret. Kept. 1851; Palseont. PL 7, 
4 Pliinoclielys stenicephalus (Seeley). 
5 Pliinoclielys cardiocephcdus (Seeley). 
6 Phinochelys sphenicephalus (Seeley). 
7 Phinochelys Dayi (Seeley). 
8 Phinochelys platyrhinus (Seeley). 
9 Phinochelys rheporhinus (Seeley). 
10 Phinochelys graptocephalus (Seeley). 
11 Phinochelys dacognathus (Seeley). 
12 Phinochelys colognathus (Seeley). 
13 Phinochelys dimerognathus (Seeley). 
14 Phinochelys grypus (Seeley). 
15 Phinochelys platycephcdus (Seeley). 
J 
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* In this genus the limb-bones (levelope neither heads nor trochanters, 
t To these might be added half a dozen others, less satisfactorily indicated. 
