﻿430 
  ACTINOPTEEYGII. 
  

  

  1863. 
  Belonostomus 
  munsteri, 
  A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  Akad. 
  Wi.^ 
  

  

  math.-phys. 
  01. 
  vol. 
  ix. 
  p. 
  689. 
  

   1863. 
  Belonostomus 
  speciosus, 
  A. 
  Wagner, 
  ibid. 
  p. 
  689. 
  [Imperfect 
  fish. 
  

  

  Palseontological 
  Museum, 
  Municb.] 
  

   1887. 
  Belonostomus 
  speciosus, 
  O. 
  Heis, 
  Sitzungsb. 
  k. 
  bay. 
  Akad. 
  Wiss., 
  

  

  matb.-pbys. 
  CI. 
  vol. 
  xvii. 
  p. 
  159, 
  pi. 
  i. 
  fig. 
  4. 
  

  

  Type. 
  Head 
  and 
  anterior 
  part 
  of 
  trunk 
  ; 
  British 
  Museum. 
  

  

  A 
  species 
  of 
  moderate 
  size 
  attaining 
  a 
  length 
  of 
  about 
  0*4. 
  Head 
  

   with 
  opercular 
  apparatus 
  occupying 
  about 
  one-quarter 
  of 
  the 
  total 
  

   length 
  ; 
  maximum 
  depth 
  of 
  trunk 
  contained 
  fifteen 
  times 
  in 
  the 
  

   total 
  length. 
  Cranium 
  about 
  five 
  times 
  as 
  long 
  as 
  its 
  maximum 
  

   depth 
  ; 
  jaws 
  equal 
  in 
  length, 
  the 
  pointed 
  anterior 
  extremity 
  of 
  the 
  

   dentary 
  hones 
  suturally 
  united 
  with 
  a 
  deep 
  re-entering 
  angle 
  in 
  the 
  

   presymphysial 
  bone 
  ; 
  external 
  ornament 
  very 
  finely 
  rugose. 
  Ver- 
  

   tebrae 
  in 
  the 
  form 
  of 
  robust 
  constricted 
  rings, 
  longer 
  than 
  deep. 
  

   Space 
  between 
  the 
  origin 
  of 
  the 
  pelvic 
  fins 
  and 
  that 
  of 
  the 
  anal 
  

   fin 
  about 
  equal 
  to 
  the 
  space 
  between 
  the 
  latter 
  and 
  the 
  caudal. 
  

   Scales 
  finely 
  tuberculated, 
  partly 
  rugose 
  ; 
  those 
  of 
  the 
  lateral 
  line 
  

   not 
  much 
  exceeding 
  in 
  depth 
  the 
  series 
  below. 
  

  

  Form. 
  S[ 
  Loc. 
  Lower 
  Kimmeridgian 
  : 
  Bavaria, 
  and 
  (?) 
  Ain, 
  France. 
  

  

  P. 
  505, 
  P. 
  3801 
  . 
  The 
  type 
  specimen 
  described 
  and 
  figured 
  by 
  Agassiz, 
  

   in 
  counterpart 
  ; 
  Lithographic 
  Stone, 
  Solenhofen. 
  The 
  

   suture 
  at 
  the 
  proximal 
  end 
  of 
  the 
  presymphysial 
  bone 
  is 
  

   well 
  shown. 
  Egerton 
  <$f 
  EnnisJcillen 
  Colls. 
  

  

  37798. 
  Large 
  specimen 
  in 
  counterpart, 
  wanting 
  the 
  dorsal, 
  anal, 
  

   and 
  pelvic 
  fins, 
  and 
  part 
  of 
  the 
  caudal 
  fin, 
  with 
  much- 
  

   disturbed 
  squamation 
  ; 
  Solenhofen. 
  Haberlein 
  Coll. 
  

  

  37796,37799, 
  37801. 
  Three 
  large 
  specimens, 
  variously 
  imperfect, 
  

   showing 
  several 
  of 
  the 
  principal 
  characters 
  of 
  the 
  species 
  ; 
  

   Solenhofen. 
  Haberlein 
  Coll. 
  

  

  P. 
  3802. 
  A 
  similar 
  specimen, 
  contorted, 
  wanting 
  all 
  the 
  fins 
  except 
  

   the 
  basal 
  half 
  of 
  the 
  caudal 
  ; 
  Solenhofen. 
  

  

  Enniskillen 
  Coll. 
  

  

  37797. 
  Imperfect 
  vertebral 
  column, 
  with 
  remains 
  of 
  the 
  head 
  and 
  

   scattered 
  scales 
  ; 
  Solenhofen. 
  The 
  suture 
  between 
  the 
  pre- 
  

   symphysial 
  and 
  dentary 
  bones 
  is 
  shown 
  ; 
  and 
  in 
  the 
  caudal 
  

   region 
  the 
  short 
  neural 
  and 
  hasmal 
  arches 
  and 
  spines 
  are 
  

   preserved. 
  Haberlein 
  Coll. 
  

  

  P. 
  4690. 
  Head 
  wanting 
  rostrum, 
  with 
  trunk 
  wanting 
  caudal 
  region, 
  

   of 
  the 
  form 
  ascribed 
  to 
  this 
  species 
  by 
  Thiolliere, 
  Poiss. 
  

   Foss. 
  Bugey, 
  pt. 
  ii. 
  (1873), 
  p. 
  24 
  ; 
  Cirin, 
  Ain, 
  France. 
  

  

  Purchased, 
  1884. 
  

  

  