﻿512 
  ACTIffOPlEKYGII. 
  

  

  Leptolepis 
  voithi, 
  Agassiz. 
  

  

  (?) 
  1839. 
  Ascalabos 
  voithii, 
  G. 
  von 
  Minister, 
  Beitr. 
  Petrefakt. 
  pt. 
  i. 
  

  

  p. 
  112, 
  pi. 
  xii. 
  fig. 
  5. 
  

   1844. 
  Leptolepis 
  voithii, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  ii. 
  pp. 
  131, 
  

  

  295, 
  pi. 
  lxi. 
  a. 
  figs. 
  2-4. 
  

   1844. 
  Leptolepis 
  contractus, 
  L. 
  Agassiz, 
  ibid. 
  pt. 
  ii. 
  pp. 
  134, 
  294. 
  

   1844. 
  Leptolepis 
  poly 
  spondylus, 
  L. 
  Agassiz, 
  ibid. 
  p. 
  133, 
  pi. 
  lxi. 
  figs. 
  7, 
  8. 
  

  

  [Immature 
  fish.] 
  

   1844. 
  Leptolepis 
  paucispondylus, 
  L. 
  Agassiz, 
  ibid. 
  p. 
  134 
  (name 
  only). 
  

   (?) 
  1848. 
  Tharsis 
  radiatus, 
  C. 
  G-. 
  Giebel, 
  Fauna 
  d. 
  Vorw., 
  Fische, 
  

  

  p. 
  146. 
  [Nearly 
  complete 
  fish 
  ; 
  Halle 
  Museum.] 
  

   1863. 
  Leptolepis 
  voithii, 
  A. 
  Wagner, 
  Abh. 
  k. 
  hay. 
  Akad. 
  Wiss., 
  math.- 
  

  

  phys. 
  CI. 
  vol. 
  ix. 
  pp. 
  741, 
  744. 
  

  

  Type. 
  Nearly 
  complete 
  fishes 
  ; 
  Palaaontological 
  Museum, 
  Munich. 
  

  

  A 
  small 
  species, 
  attaining 
  a 
  length 
  of 
  about 
  0*12. 
  Length 
  of 
  

   head 
  with 
  opercular 
  apparatus 
  considerably 
  exceeding 
  the 
  maximum 
  

   depth 
  of 
  the 
  trunk, 
  and 
  equalling 
  about 
  one-quarter 
  of 
  the 
  total 
  

   length 
  of 
  the 
  fish 
  ; 
  caudal 
  pedicle 
  comparatively 
  robust, 
  its 
  depth 
  

   exceeding 
  one-third 
  the 
  maximum 
  depth 
  of 
  the 
  abdominal 
  region. 
  

   Vertebras 
  about 
  35 
  to 
  40 
  in 
  number, 
  the 
  centra 
  in 
  the 
  caudal 
  region 
  

   longer 
  than 
  deep 
  and 
  all 
  comparatively 
  robust, 
  being 
  strengthened 
  

   by 
  the 
  addition 
  of 
  small 
  longitudinal 
  ridges 
  of 
  secondary 
  bone 
  ; 
  

   neural 
  and 
  haemal 
  spines 
  in 
  the 
  anterior 
  part 
  of 
  the 
  caudal 
  region 
  

   gently 
  arcuated. 
  Pelvic 
  fins 
  arising 
  much 
  nearer 
  to 
  the 
  anal 
  than 
  

   to 
  the 
  pectorals 
  ; 
  dorsal 
  with 
  about 
  14 
  rays, 
  arising 
  opposite 
  the 
  

   pelvic 
  pair 
  and 
  extending 
  almost 
  as 
  far 
  as 
  a 
  point 
  opposite 
  the 
  anal, 
  

   which 
  comprises 
  about 
  10 
  rays 
  and 
  arises 
  much 
  nearer 
  to 
  the 
  pelvic 
  

   fins 
  than 
  to 
  the 
  caudal. 
  

  

  Form. 
  $• 
  Loc. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  : 
  Ba- 
  

   varia. 
  

  

  37059, 
  37062, 
  37064, 
  37077, 
  37080, 
  37900, 
  37908-10, 
  37916-18, 
  

   37921. 
  Thirteen 
  specimens, 
  three 
  being 
  in 
  counterpart, 
  

   variously 
  preserved 
  and 
  exhibiting 
  all 
  the 
  principal 
  cha- 
  

   racters 
  of 
  the 
  species 
  ; 
  Solenhofen. 
  Haberlein 
  Coll. 
  

  

  P. 
  931, 
  P. 
  3672. 
  Fine 
  specimen 
  0-085 
  in 
  length, 
  in 
  counterpart; 
  

   Solenhofen. 
  Egerton 
  6f 
  Enniskillen 
  Colls. 
  

  

  P. 
  3673. 
  Two 
  large 
  contorted 
  specimens, 
  probably 
  of 
  this 
  species 
  ; 
  

   Kelheim. 
  Enniskillen 
  Coll. 
  

  

  P. 
  3673 
  a. 
  Typical 
  well-preserved 
  fish 
  0'075 
  in 
  length 
  ; 
  Kelheim. 
  

  

  Enniskillen 
  Coll. 
  

  

  46315. 
  Similar 
  specimen 
  ; 
  Kelheim. 
  History 
  unknown. 
  

  

  