﻿se^iioxotid.^;. 
  115 
  

  

  2401. 
  Hinder 
  portion 
  of 
  head, 
  with 
  some 
  anterior 
  scales 
  and 
  

   ring-vertebrae 
  ; 
  Sussex. 
  The 
  snpratemporal 
  plates 
  are 
  

   not 
  in 
  symmetrical 
  pairs, 
  but 
  three 
  on 
  one 
  side 
  of 
  the 
  

   median 
  line 
  and 
  two 
  on 
  the 
  other. 
  The 
  operculum 
  is 
  

   coarsely 
  tuberculated 
  and 
  the 
  ascending 
  process 
  of 
  the 
  

   suboperculum 
  is 
  long 
  and 
  slender 
  ; 
  but 
  the 
  anterior 
  

   margin 
  of 
  the 
  former 
  is 
  strongly 
  sinuous. 
  Mantell 
  Coll. 
  

  

  P. 
  6566. 
  Parasphenoid 
  bone, 
  imperfect 
  at 
  each 
  extremity, 
  but 
  

   showing 
  the 
  ascending 
  lateral 
  processes 
  with 
  superior 
  

   bifurcation 
  ; 
  Hastings. 
  BecJcles 
  Coll. 
  

  

  2399. 
  Left 
  frontal 
  ascribed 
  by 
  Agassiz 
  (torn. 
  cit. 
  p. 
  264, 
  pi. 
  xxx. 
  b. 
  

   fig. 
  2) 
  to 
  L. 
  mantelli 
  ; 
  Tilgate 
  Forest. 
  Mantell 
  Coll. 
  

  

  2528. 
  Eight 
  frontal 
  ascribed 
  by 
  Agassiz 
  {torn. 
  cit. 
  p. 
  264, 
  pi. 
  xxx. 
  b. 
  

   fig. 
  3) 
  to 
  the 
  so-called 
  L.fittoni 
  ; 
  Tilgate 
  Forest. 
  

  

  Mantell 
  Coll, 
  

  

  P. 
  7416-17. 
  Left 
  frontal 
  and 
  portion 
  of 
  right 
  frontal; 
  Hastings. 
  

  

  Dawson 
  Coll. 
  

  

  2217. 
  Imperfect 
  left 
  operculum 
  ; 
  Tilgate 
  Forest. 
  Mantell 
  Coll. 
  

  

  2219. 
  Imperfect 
  right 
  suboperculum 
  ; 
  Tilgate 
  Forest. 
  

  

  Mantell 
  Coll. 
  

  

  2209. 
  Eight 
  preoperculum, 
  inner 
  aspect; 
  Tilgate 
  Forest. 
  

  

  Mantell 
  Coll 
  

  

  P. 
  7418. 
  Eight 
  preoperculum 
  ; 
  Tilgate 
  Forest. 
  EnnisHllen 
  Coll. 
  

  

  2711. 
  Ceratohyal; 
  Tilgate 
  Forest. 
  Mantell 
  Coll. 
  

  

  2326. 
  Three 
  portions 
  of 
  dentition 
  figured 
  by 
  Agassiz, 
  torn. 
  cit. 
  

   pi. 
  xxx. 
  a. 
  figs. 
  4, 
  5, 
  pi. 
  xxx. 
  c. 
  figs. 
  2, 
  3 
  ; 
  Tilgate 
  Forest. 
  

   The 
  first 
  figure 
  represents 
  the 
  greater 
  part 
  of 
  the 
  right 
  

   mandibular 
  dentition 
  with 
  the 
  comparatively 
  small 
  series 
  

   of 
  teeth 
  on 
  the 
  dentary 
  bone 
  ; 
  the 
  second 
  specimen 
  is 
  the 
  

   middle 
  portion 
  of 
  a 
  vomer 
  ; 
  and 
  the 
  third 
  specimen, 
  shown 
  

   in 
  the 
  two 
  last-named 
  figures, 
  is 
  the 
  pterygo-palatine 
  

   dentition 
  apparently 
  of 
  the 
  left 
  side. 
  Mantell 
  Coll. 
  

  

  28412. 
  Associated 
  vomer, 
  left 
  pterygo-palatine, 
  and 
  right 
  mandibular 
  

   ramus 
  of 
  a 
  large 
  individual 
  ; 
  Sussex. 
  The 
  vomer 
  shows 
  

   the 
  characteristically-arranged 
  five 
  posterior 
  teeth, 
  with 
  

   the 
  smaller 
  anterior 
  teeth 
  in 
  four 
  very 
  irregular 
  longitu- 
  

   dinal 
  series 
  ; 
  the 
  pterygo-palatine 
  has 
  a 
  minute 
  fourth 
  

   outer 
  series 
  of 
  teeth 
  ; 
  the 
  bases 
  of 
  six 
  small 
  teeth 
  of 
  the 
  

  

  i2 
  

  

  