﻿74 
  ACTltfOPTERYGII. 
  

  

  P. 
  1540, 
  P. 
  4657. 
  A 
  somewhat 
  smaller 
  but 
  nearly 
  similar 
  specimen, 
  

   partly 
  in 
  counterpart 
  ; 
  Seefeld. 
  

  

  Egerton 
  and 
  EnnisJcillen 
  Colls. 
  

  

  21375. 
  Imperfect 
  trunk, 
  displaying 
  the 
  squamation 
  and 
  part 
  of 
  the 
  

   tuberculated 
  operculum 
  ; 
  Seefeld. 
  Part 
  of 
  a 
  postclavicular 
  

   scale 
  is 
  highly 
  ornamented. 
  Purchased, 
  1847. 
  

  

  P. 
  1539. 
  More 
  imperfect 
  portion 
  of 
  trunk 
  ; 
  Seefeld. 
  Egerton 
  Coll. 
  

  

  P. 
  3622. 
  Middle 
  portion 
  of 
  deepened 
  trunk 
  ; 
  Seefeld. 
  

  

  EnnisJcillen 
  Coll. 
  

  

  The 
  following 
  specimen 
  may 
  represent 
  the 
  young 
  of 
  C. 
  ornatus: 
  — 
  

  

  P. 
  4706. 
  Fragment 
  of 
  head 
  and 
  trunk 
  of 
  a 
  very 
  small 
  fish, 
  with 
  

   extremely 
  conspicuous 
  ornamentation 
  on 
  the 
  plan 
  of 
  that 
  

   of 
  C. 
  ornatus 
  ; 
  Seefeld. 
  The 
  fossil 
  is 
  associated 
  with 
  an 
  

   imperfect 
  Pholidojihorus-like 
  fish. 
  EnnisJcillen 
  Coll. 
  

  

  Colobodus 
  latus 
  (Agassiz). 
  

  

  1833. 
  Dapedius 
  altivelis, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  i. 
  p. 
  8 
  (un- 
  

   defined). 
  

   1833-37. 
  Semionotus 
  latus, 
  L. 
  Agassiz, 
  ibid. 
  pp. 
  8, 
  227, 
  pi. 
  xxvii. 
  

  

  1843. 
  Semionotus 
  pentlandi, 
  Sir 
  P. 
  Egerton, 
  Proc. 
  Geol. 
  Soc. 
  vol. 
  iv. 
  

   p. 
  183. 
  [Caudal 
  region 
  ; 
  British 
  Museum.] 
  

  

  (?) 
  1843. 
  Semionotus 
  pustulifer, 
  Sir 
  P. 
  Egerton, 
  ibid. 
  p. 
  183. 
  [Fragment 
  

   of 
  opercular 
  apparatus 
  and 
  squamation 
  ; 
  British 
  Museum.] 
  

  

  1844. 
  Lepidotus 
  parvulus, 
  L. 
  Agassiz 
  (ex 
  Miinster, 
  MS.), 
  torn. 
  cit. 
  

   p. 
  267, 
  pi. 
  xxxiv 
  a. 
  figs. 
  8, 
  9. 
  [Imperfect 
  fish 
  ; 
  Palseontological 
  

   Museum, 
  Munich.] 
  

  

  1850. 
  Lepidotus 
  notopterus, 
  0. 
  G. 
  Costa 
  (err 
  ore), 
  Atti 
  Accad. 
  Pontan. 
  

  

  vol. 
  v. 
  pp. 
  303, 
  426, 
  pi. 
  viii. 
  figs. 
  1 
  b, 
  4. 
  

   1850. 
  Semionotus 
  curtulus, 
  0. 
  G. 
  Costa, 
  ibid. 
  vol. 
  v. 
  p. 
  294, 
  pi. 
  vii. 
  fig. 
  6, 
  

  

  pi. 
  viii. 
  fig. 
  2. 
  

   1853-64. 
  Lepidotus 
  acutirostris, 
  O. 
  G. 
  Costa, 
  ibid. 
  vol. 
  viii. 
  pp. 
  76, 
  193, 
  

  

  pi. 
  ix. 
  fig. 
  1, 
  and 
  Ittiol. 
  Foss. 
  Ital. 
  p. 
  7, 
  pi. 
  ii. 
  fig. 
  1. 
  

   1853-64. 
  Semionotus 
  curtulus, 
  0. 
  G. 
  Costa, 
  ibid. 
  vol. 
  viii. 
  pp. 
  78, 
  194, 
  

  

  pi. 
  xi. 
  fig. 
  1, 
  and 
  Ittiol. 
  Foss. 
  Ital. 
  p. 
  25, 
  pi. 
  iii. 
  fig. 
  1. 
  

  

  1861. 
  Semionotus 
  latus, 
  0. 
  Fraas, 
  Wiirtt. 
  Jahresh. 
  vol. 
  xvii. 
  p. 
  85. 
  

  

  1862. 
  Semionotus 
  curtulus, 
  0. 
  G. 
  Costa, 
  Atti 
  R. 
  Accad. 
  Sci. 
  Napoli, 
  

   Append, 
  p. 
  43, 
  pi. 
  v. 
  fig. 
  1. 
  

  

  1864. 
  Semionotus 
  curtulus, 
  0. 
  G. 
  Costa, 
  Atti 
  Istit. 
  Inc. 
  Sci. 
  Nat. 
  Napoli, 
  

   [2] 
  vol. 
  i. 
  p. 
  238, 
  pi. 
  iii. 
  fig. 
  1. 
  

  

  Semionotus 
  latus, 
  R. 
  Kner, 
  Sitzungsb. 
  k. 
  Akad. 
  Wiss., 
  math.- 
  

   naturw. 
  CI. 
  vol. 
  liv. 
  pt. 
  i. 
  p. 
  319, 
  pi. 
  iii. 
  fig. 
  5, 
  pi. 
  iv. 
  

  

  