﻿ASPIDORHYSTCHLD.E. 
  431 
  

  

  Belonostomus 
  kochi, 
  Agassiz. 
  

  

  1834. 
  Aspidorhynchus 
  lepturus, 
  L. 
  Agassiz, 
  Verhandl. 
  Ges. 
  vaterland. 
  

  

  Mus. 
  Boknien, 
  p. 
  70 
  (name 
  only). 
  

   1844. 
  Aspidorhynchus 
  lepturus, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  ii. 
  

  

  p. 
  139 
  (undefined). 
  

   1844. 
  Belonostomus 
  kochii, 
  L. 
  Agassiz, 
  ibid. 
  p. 
  143. 
  

   1863. 
  Belonostomus 
  Jcochii, 
  A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  Akad. 
  Wiss., 
  

  

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

  

  Type. 
  Nearly 
  complete 
  fish 
  ; 
  Palaeontological 
  Museum, 
  Munich. 
  

  

  A 
  species 
  closely 
  related 
  to 
  B. 
  muensteri, 
  but 
  less 
  elongated 
  and 
  of 
  

   more 
  delicate 
  proportions 
  ; 
  head 
  with 
  opercular 
  apparatus 
  occupying 
  

   one-quarter 
  of 
  the 
  total 
  length. 
  Jaws 
  equal 
  in 
  length. 
  

  

  An 
  immature 
  example 
  apparently 
  of 
  this 
  species 
  in 
  the 
  Palseon- 
  

   tological 
  Museum, 
  Munich, 
  is 
  labelled 
  B. 
  longimanus 
  by 
  Miinster. 
  

  

  Form. 
  <$f 
  Log. 
  Lower 
  Kimmeridgian 
  : 
  Bavaria. 
  

  

  49136. 
  Plaster 
  cast 
  of 
  type 
  specimen 
  0*275 
  in 
  length 
  ; 
  Lithographic 
  

   Stone, 
  Kelheim. 
  Purchased, 
  1878. 
  

  

  Belonostomus 
  tenuirostris, 
  Agassiz. 
  

   [Plate 
  XVII. 
  fig. 
  12.] 
  

  

  1833. 
  Aspidorhynchus 
  tenuirostris, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  i. 
  

   p. 
  14. 
  

  

  1834. 
  Belonostomus 
  tenuirostris, 
  L. 
  Agassiz, 
  Neues 
  Jahrb. 
  p. 
  388. 
  

   1837. 
  Belanostomus 
  tenuirostris, 
  L. 
  Agassiz, 
  Bericht.Versamml. 
  deutsch. 
  

  

  Naturf., 
  Jena, 
  1836, 
  p. 
  127. 
  

  

  1837. 
  Belanostomus 
  tabulatus, 
  L. 
  Agassiz, 
  ibid. 
  p. 
  127 
  (name 
  only). 
  

  

  1844. 
  Belonostomus 
  tenuii-ostris, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  ii. 
  

   pp. 
  143, 
  297. 
  

  

  1844. 
  Belonosto?nus 
  subulatus, 
  L. 
  Agassiz, 
  ibid. 
  pp. 
  143, 
  297. 
  [Imper- 
  

   fect 
  anterior 
  half 
  of 
  fish 
  ; 
  Palaeontological 
  Museum, 
  Munich.] 
  

  

  1863. 
  Belonostomus 
  tenuirostris, 
  A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  Akad. 
  Wiss., 
  

   math.-phys. 
  CI. 
  vol. 
  ix. 
  p. 
  691. 
  

  

  1863. 
  Belonostomus 
  tenuirostris, 
  var. 
  brevivertebralis, 
  A. 
  Wagner, 
  ibid. 
  

   p. 
  691. 
  

  

  1881. 
  Belonostomus 
  tenuirostris, 
  B. 
  Vetter, 
  Mittheil. 
  k. 
  mineral.-geol. 
  

   Mus. 
  Dresden, 
  pt. 
  iv. 
  p. 
  85. 
  

  

  Type. 
  Head, 
  &c. 
  ; 
  unknown. 
  

  

  A 
  species 
  of 
  very 
  slender 
  proportions 
  attaining 
  a 
  length 
  of 
  about 
  

   0*3. 
  Head 
  with 
  opercular 
  apparatus 
  occupying 
  one-third 
  of 
  the 
  

   total 
  length 
  ; 
  maximum 
  depth 
  of 
  trunk 
  contained 
  fourteen 
  times 
  in 
  

   the 
  total 
  length. 
  Cranium 
  about 
  nine 
  times 
  as 
  long 
  as 
  its 
  maximum 
  

   depth, 
  having 
  the 
  snout 
  excessively 
  elongated, 
  and 
  projecting 
  to 
  

  

  