﻿364 
  

  

  ACTINOFIEKYGII. 
  

  

  its 
  hinder 
  extremity 
  and 
  the 
  end 
  of 
  the 
  upper 
  caudal 
  lobe 
  ; 
  pelvic 
  

   fins 
  arising 
  opposite 
  the 
  origin 
  of 
  the 
  dorsal, 
  and 
  the 
  anal 
  fin 
  

   comprising 
  about 
  9 
  rays, 
  opposed 
  to 
  the 
  hinder 
  portion 
  of 
  the 
  

   latter. 
  

  

  It 
  is 
  not 
  improbable 
  that 
  the 
  skull 
  from 
  the 
  Lithographic 
  Stone 
  

   of 
  Nusplingen, 
  Wiirtemberg, 
  described 
  under 
  the 
  name 
  of 
  Strobi- 
  

   lodus 
  suevicus 
  (F. 
  A. 
  Quenstedt, 
  Der 
  Jura, 
  1858, 
  p. 
  809, 
  pi. 
  c. 
  

   fig. 
  10), 
  also 
  pertains 
  to 
  this 
  species. 
  The 
  type 
  specimen 
  is 
  pre- 
  

   served 
  in 
  the 
  University 
  Museum, 
  Tubingen, 
  Wiirtemberg. 
  

  

  Form. 
  6r 
  Loc. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  : 
  Bavaria. 
  

  

  37366. 
  Plaster 
  cast 
  of 
  type 
  specimen 
  ; 
  Solenhofen. 
  

  

  Purchased, 
  1863. 
  

  

  P. 
  952. 
  Fish 
  0-355 
  in 
  length, 
  well 
  preserved 
  but 
  chiefly 
  as 
  an 
  

   impression 
  ; 
  probably 
  from 
  Solenhofen. 
  Nineteen 
  sup- 
  

   ports 
  are 
  distinctly 
  shown 
  in 
  the 
  dorsal, 
  and 
  nine 
  in 
  the 
  

   anal 
  fin. 
  Egerton 
  Coll. 
  

  

  P. 
  953. 
  Immature 
  fish 
  wanting 
  the 
  head 
  and 
  the 
  greater 
  part 
  of 
  

   the 
  fins 
  : 
  Kelheim. 
  Egerton 
  Coll. 
  

  

  Megalurus 
  elongatus, 
  Agassiz. 
  

  

  1839-44. 
  Megalurus 
  elongatus, 
  L. 
  Agassiz 
  (ex 
  Minister, 
  MS.), 
  Poiss. 
  

  

  Foss. 
  vol. 
  ii. 
  pt. 
  ii. 
  p. 
  148, 
  pi. 
  h. 
  figs. 
  1, 
  2. 
  

   1851. 
  Megalurus 
  elongatus, 
  A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  Akad. 
  Wiss., 
  

  

  math.-phys. 
  01. 
  vol. 
  vi. 
  p. 
  70. 
  

   1851. 
  Megalurus 
  polgspondglus, 
  A. 
  Wagner 
  (ex 
  Munster, 
  MS.), 
  ibid. 
  

  

  vol. 
  vi. 
  p. 
  71. 
  [Nearly 
  complete 
  fish; 
  Palaeontological 
  Museum, 
  

  

  Munich.] 
  

   1863. 
  Megalurus 
  grandis, 
  A. 
  Wagner, 
  ibid. 
  vol. 
  ix. 
  p. 
  714. 
  [Ditto.] 
  

   1863. 
  Megalurus 
  jJolysp)ondylus, 
  A. 
  Wagner, 
  ibid. 
  vol. 
  ix. 
  p. 
  718. 
  

   1863. 
  Megalurus 
  elongatus, 
  A. 
  Wagner, 
  ibid. 
  vol. 
  ix. 
  p. 
  719. 
  

   1873. 
  Megalurus 
  polgspondglus?, 
  V. 
  Thiolliere, 
  Poiss. 
  Foss. 
  Bugey, 
  

  

  pt. 
  ii.' 
  p. 
  22, 
  pi. 
  viii. 
  fig. 
  1. 
  

   1881. 
  Megalurus 
  polgspondglus, 
  B. 
  Vetter, 
  Mittheil. 
  k. 
  mineral.-geol. 
  

  

  Mus. 
  Dresden, 
  pt. 
  iv. 
  p. 
  116. 
  

   1887. 
  Megalurus 
  polgspondglus, 
  K. 
  A. 
  von 
  Zittel, 
  Handb. 
  Palaeont. 
  

  

  vol. 
  iii. 
  p. 
  234, 
  fig. 
  247. 
  

  

  Type. 
  Nearly 
  complete 
  fish 
  ; 
  Palseontological 
  Museum, 
  Munich. 
  

  

  A 
  species 
  attaining 
  a 
  length 
  of 
  about 
  0*45. 
  Head 
  with 
  oper- 
  

   cular 
  apparatus 
  occupying 
  not 
  more 
  than 
  one-fifth 
  of 
  the 
  total 
  length 
  

   of 
  the 
  fish, 
  and 
  the 
  depth 
  of 
  the 
  caudal 
  pedicle 
  contained 
  more 
  than 
  

   five 
  times 
  in 
  the 
  length 
  from 
  the 
  hinder 
  border 
  of 
  the 
  operculum 
  to 
  

   the 
  base 
  of 
  the 
  middle 
  caudal 
  fin-rays. 
  Vertebra? 
  about 
  60 
  in 
  

  

  