﻿346 
  

  

  1CTIN0PTERYGUX. 
  

  

  Caturus 
  (Strobilodus) 
  giganteus 
  (Wagner). 
  

  

  1851. 
  Strobilodus 
  giganteus, 
  A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  Akad. 
  Wise. 
  

  

  math.-phys. 
  CI. 
  vol. 
  vi. 
  p. 
  75, 
  pi. 
  ii. 
  

   1863. 
  Strobilodus 
  giganteus, 
  A. 
  Wagner, 
  ibid. 
  vol. 
  ix. 
  p. 
  674. 
  

  

  Type. 
  Imperfect 
  fish 
  ; 
  Palseontological 
  Museum, 
  Munich. 
  

  

  The 
  type 
  species 
  of 
  the 
  so-called 
  genus 
  Strobilodus, 
  attaining 
  a 
  

   length 
  of 
  nearly 
  1 
  metre. 
  Maxilla 
  apparently 
  more 
  robust 
  than 
  in 
  

   the 
  preceding 
  species, 
  with 
  concave 
  dentigerous 
  border 
  and 
  its 
  

   middle 
  teeth 
  remarkably 
  large 
  and 
  tumid, 
  their 
  height 
  nearly 
  

   equalling 
  the 
  depth 
  of 
  the 
  bone 
  at 
  their 
  insertion. 
  Opercular 
  

   bones 
  finely 
  punctate, 
  wanting 
  tubercular 
  and 
  rugose 
  ornamenta- 
  

   tion. 
  

  

  Form. 
  <$f 
  Log. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  : 
  

   Bavaria. 
  

  

  Not 
  represented 
  in 
  the 
  Collection. 
  

  

  Caturus 
  (Thlattodus) 
  suchoides 
  (Owen). 
  

  

  1866. 
  Thlattodus 
  suchoides, 
  R. 
  Owen, 
  Geol. 
  Mag. 
  vol. 
  iii. 
  p. 
  55, 
  pi. 
  iii. 
  

   1887. 
  Strobilodus 
  suchoides, 
  K. 
  A. 
  von 
  Zittel, 
  Handb. 
  Palasont. 
  vol. 
  iii. 
  

  

  p. 
  230. 
  

   1890. 
  Strobilodus 
  suchoides, 
  Woodward 
  & 
  Sherborn, 
  Catal. 
  Brit. 
  Foss. 
  

  

  Vertebrata, 
  p, 
  190. 
  

  

  Type. 
  Jaws 
  ; 
  British 
  Museum. 
  

  

  The 
  type 
  species 
  of 
  the 
  so-called 
  genus 
  Thlattodus, 
  known 
  only 
  

   by 
  the 
  jaws, 
  which 
  indicate 
  a 
  fish 
  perhaps 
  more 
  than 
  1 
  metre 
  in 
  

   length. 
  Maxilla 
  and 
  its 
  dentition 
  apparently 
  almost 
  similar 
  in 
  

   form 
  and 
  proportions 
  to 
  that 
  of 
  C. 
  giganteus, 
  but 
  less 
  deepened 
  

   behind. 
  Dentary 
  attenuated 
  and 
  scarcely 
  if 
  at 
  all 
  deflexed 
  at 
  the 
  

   symphysis. 
  The 
  indent 
  at 
  the 
  base 
  of 
  the 
  external 
  face 
  of 
  the 
  teeth 
  

   very 
  conspicuous. 
  

  

  Form. 
  Sf 
  Lot. 
  Kimmeridgian 
  : 
  Norfolk. 
  

  

  41386. 
  Type 
  specimen 
  ; 
  Kimmeridge 
  Clay, 
  Downham, 
  Norfolk. 
  

   The 
  robust 
  prefrontal 
  articulating 
  with 
  the 
  maxilla 
  is 
  

   well 
  shown 
  on 
  each 
  side. 
  

  

  Presented 
  by 
  C. 
  B. 
  Rose, 
  Esq., 
  1869. 
  

  

  Caturus 
  cliftoni, 
  sp. 
  nov. 
  

   [Plate 
  VII. 
  figs. 
  4, 
  5.] 
  

  

  Type. 
  Imperfect 
  right 
  maxilla 
  ; 
  British 
  Museum. 
  

   Maxilla 
  similar 
  in 
  form 
  to 
  that 
  of 
  G. 
  suchoides, 
  and 
  at 
  least 
  as 
  

   large, 
  but 
  the 
  teeth 
  much 
  larger, 
  the 
  height 
  of 
  those 
  at 
  its 
  middle 
  

  

  