﻿PXCNODONTIDJE. 
  

  

  213 
  

  

  P. 
  3757. 
  Another 
  specimen 
  with 
  more 
  numerous 
  flanking 
  teeth 
  ; 
  

   Purbeck 
  Beds, 
  Swanage. 
  EnnisJcillen 
  Coll. 
  

  

  35577. 
  Portion 
  of 
  left 
  splenial 
  apparently 
  of 
  a 
  large 
  species 
  of 
  

   Mesodon, 
  with 
  numerous 
  small 
  lateral 
  teeth 
  ; 
  Lias, 
  Camer- 
  

   ton, 
  near 
  Bath. 
  The 
  bone 
  measures 
  about 
  0-025 
  in 
  

   maximum 
  width, 
  and 
  the 
  teeth 
  of 
  the 
  principal 
  series 
  are 
  

   somewhat 
  broader 
  than 
  long. 
  

  

  Presented 
  by 
  Hugh 
  Owen, 
  Esq., 
  1859. 
  

  

  The 
  following 
  species 
  have 
  also 
  been 
  founded 
  on 
  portions 
  of 
  

   dentition, 
  of 
  which, 
  there 
  are 
  no 
  examples 
  in 
  the 
  Collection 
  : 
  — 
  

  

  Mesodon 
  autissiodorensis 
  : 
  Pycnodus 
  autissiodorensis, 
  H. 
  E. 
  Sau- 
  

   vage, 
  Bull. 
  Soc. 
  Sci. 
  Nat. 
  Yonne, 
  vol. 
  xxxiii. 
  pt. 
  ii. 
  (1879), 
  

   p. 
  38, 
  pi. 
  i. 
  fig. 
  6. 
  — 
  Neocomian 
  ; 
  Yonne, 
  France. 
  [Eight 
  

   splenial.] 
  

  

  Mesodon 
  bathonicus, 
  H. 
  E. 
  Sauvage, 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  

   vol. 
  viii. 
  (1880), 
  p. 
  527, 
  pi. 
  xix. 
  fig. 
  1. 
  Pycnodus 
  affinis, 
  

   H. 
  E. 
  Sauvage, 
  Catal. 
  Poiss. 
  Form. 
  Second. 
  Boulonnais 
  

   (1867), 
  p. 
  26, 
  pi. 
  ii. 
  fig. 
  6 
  (errore). 
  — 
  Bathonian 
  ; 
  Mar- 
  

   quise. 
  [Imperfect 
  left 
  splenial 
  ; 
  Boulogne 
  Museum.] 
  

  

  Mesodon 
  boloniensis, 
  H. 
  E. 
  Sauvage, 
  loc. 
  cit. 
  (1880), 
  p. 
  527. 
  Pyc- 
  

   nodus 
  boloniensis, 
  H. 
  E. 
  Sauvage, 
  op. 
  cit. 
  (1867), 
  p. 
  27, 
  

   pi. 
  ii. 
  fig. 
  4. 
  Pycnodus 
  jugleri, 
  H. 
  E. 
  Sauvage, 
  ibid. 
  

   (1867), 
  p. 
  27, 
  pi. 
  ii. 
  fig. 
  5 
  (errore). 
  — 
  Bathonian 
  ; 
  Marquise. 
  

   [Portion 
  of 
  right 
  splenial; 
  Boulogne 
  Museum.] 
  

  

  Mesodon 
  diastematicus, 
  E. 
  D. 
  Cope, 
  Journ. 
  Acad. 
  Nat. 
  Sci. 
  Philad. 
  

   [2] 
  vol. 
  ix. 
  (1894), 
  p. 
  443, 
  woodc. 
  fig. 
  5. 
  — 
  Lower 
  Cre- 
  

   taceous 
  ; 
  Texas. 
  [Vomer 
  of 
  uncertain 
  genus.] 
  

  

  Mesodon 
  dumblei, 
  E. 
  D. 
  Cope, 
  ibid. 
  p. 
  444, 
  pi. 
  xx. 
  fig. 
  7. 
  Micro- 
  

   dus 
  dumbelii, 
  E. 
  D. 
  Cope, 
  Proc. 
  Amer. 
  Phil. 
  Soc. 
  vol. 
  xxx. 
  

   (1892), 
  p. 
  128. 
  — 
  Lower 
  Cretaceous 
  ; 
  Texas 
  [Left 
  

   splenial.] 
  

  

  Mesodon 
  dutertrei, 
  H. 
  E. 
  Sauvage, 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  

   vol. 
  viii. 
  (1880), 
  p. 
  528 
  (in 
  part). 
  Pycnodus 
  dutertrei, 
  

   H. 
  E. 
  Sauvage, 
  Catal. 
  Poiss. 
  Form. 
  Second. 
  Boulonnais 
  

   (1867), 
  p. 
  31, 
  pi. 
  ii. 
  fig. 
  7 
  (non 
  pp. 
  38, 
  45, 
  pi. 
  ii. 
  figs. 
  8, 
  9 
  

   = 
  vomer 
  of 
  Gyrodus 
  and 
  splenials 
  of 
  Lepidotus). 
  — 
  Port- 
  

   landian 
  ; 
  N. 
  France. 
  [Left 
  splenial 
  ; 
  Boulogne 
  Museum.] 
  

  

  Mesodon 
  gervaisi, 
  H. 
  E. 
  Sauvage, 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  

   vol. 
  viii. 
  (1880), 
  p. 
  527. 
  Pycnodus 
  gervaisi, 
  H. 
  E. 
  Sauvage, 
  

   Catal. 
  Poiss. 
  Form. 
  Second. 
  Boulonnais 
  (1867), 
  p. 
  29, 
  pi. 
  ii. 
  

   fig. 
  2, 
  and 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  vol. 
  viii. 
  (1880), 
  

  

  