﻿154 
  ACTINOPTERrGII. 
  

  

  Dapedius 
  jugleri, 
  F. 
  A. 
  Roemer, 
  Yerstein. 
  Norddeutsch. 
  Oolithen- 
  

   Geb., 
  Nachtr. 
  (1839), 
  p. 
  53, 
  pi. 
  xx. 
  fig. 
  35.— 
  Upper 
  Lias 
  ; 
  

   "Werther, 
  Westphalia. 
  [Head 
  and 
  anterior 
  scales.] 
  

  

  Dapedius 
  notabilis: 
  Tetragonolepis 
  notabilis, 
  A. 
  "Wagner, 
  Sitzungsb. 
  

   k. 
  bay. 
  Akad. 
  Wiss. 
  1860, 
  p. 
  40 
  (footnote) 
  : 
  Dapedius 
  

   punctatus, 
  F. 
  A. 
  Quenstedt 
  (errore), 
  Der 
  Jura 
  (1858), 
  

   p. 
  226, 
  pi. 
  xxvii. 
  figs. 
  4-12, 
  pi. 
  xxviii. 
  figs. 
  3, 
  4, 
  pi. 
  xxix. 
  

   figs. 
  1, 
  2. 
  — 
  Upper 
  Lias 
  ; 
  Wiirtemberg. 
  [Fragments 
  ; 
  

   Tubingen 
  University 
  Museum.] 
  

  

  Dapedius 
  olifex, 
  F. 
  A. 
  Quenstedt, 
  Der 
  Jura 
  (1858), 
  p. 
  89, 
  pi. 
  xi. 
  

   figs. 
  18-26. 
  — 
  Upper 
  Lias 
  ; 
  Wiirtemberg. 
  [Skull 
  and 
  

   fragments 
  ; 
  Tubingen 
  University 
  Museum.] 
  

  

  The 
  undefined 
  name 
  Dapedius 
  arenatus 
  was 
  given 
  by 
  Agassiz 
  

   (Poiss. 
  Poss. 
  vol. 
  ii. 
  pt. 
  i. 
  1844, 
  p. 
  304) 
  to 
  an 
  unknown 
  fossil 
  from 
  

   the 
  Lower 
  Lias 
  of 
  Lyme 
  Regis. 
  An 
  imperfect 
  example, 
  apparently 
  

   of 
  D. 
  colei, 
  in 
  the 
  Egerton 
  Collection 
  (P. 
  1568), 
  is 
  thus 
  labelled 
  by 
  

   him. 
  

  

  Here 
  may 
  also 
  perhaps 
  be 
  placed 
  the 
  teeth 
  from 
  the 
  Lower 
  Lias 
  

   of 
  Lyme 
  Eegis 
  recorded 
  under 
  the 
  undefined 
  name 
  of 
  Sphcerodus 
  

   microdon, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  ii. 
  (1844), 
  p. 
  216 
  (name 
  

   only). 
  

  

  An 
  imperfectly 
  defined 
  Upper 
  Jurassic 
  genus, 
  closely 
  related 
  to 
  

   Dapedius, 
  is 
  named 
  Heterostrophus 
  x 
  (A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  

   Akad. 
  Wiss., 
  math.-phys. 
  CI. 
  vol. 
  ix. 
  1863, 
  p. 
  614), 
  and 
  is 
  known 
  

   by 
  a 
  single 
  species, 
  H. 
  latus 
  (A. 
  Wagner, 
  ibid. 
  p. 
  615), 
  from 
  the 
  

   Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  of 
  Solenhofen, 
  Bavaria. 
  

   The 
  type 
  specimen 
  is 
  preserved 
  in 
  the 
  Palseontological 
  Museum, 
  

   Munich, 
  and 
  measures 
  about 
  0*33 
  in 
  length 
  to 
  the 
  base 
  of 
  the 
  

   caudal 
  fin. 
  The 
  external 
  bones 
  and 
  scales 
  are 
  smooth, 
  and 
  the 
  

   comparatively 
  stout 
  and 
  small 
  inner 
  teeth 
  are 
  marked 
  on 
  the 
  crown 
  

   with 
  radiating 
  grooves. 
  Fragmentary 
  evidence 
  probably 
  of 
  a 
  similar 
  

   fish 
  from 
  the 
  Oxford 
  Clay 
  of 
  Peterborough 
  is 
  preserved 
  in 
  the 
  

   collection 
  of 
  Alfred 
  N". 
  Leeds, 
  Esq., 
  Eyebury. 
  

  

  Genus 
  CLEITHROLEPIS, 
  Egerton. 
  

   [Quart. 
  Journ. 
  Geol. 
  Soc. 
  vol. 
  xx. 
  1864, 
  p. 
  3.] 
  

  

  Trunk 
  much 
  laterally 
  compressed, 
  very 
  deep, 
  and 
  the 
  dorsal 
  

   border 
  strongly 
  arched. 
  Head 
  comparatively 
  small, 
  with 
  well- 
  

   developed 
  opercular 
  bones 
  arranged 
  in 
  an 
  arched 
  series 
  ; 
  operculum 
  

  

  1 
  Printed 
  Heterostichus 
  in 
  Gelehrte 
  Anzeig. 
  k. 
  bay. 
  Akad. 
  Wiss. 
  1860, 
  p. 
  93. 
  

  

  