﻿302 
  ACTINOl'TERYGII. 
  

  

  the 
  total 
  length 
  of 
  the 
  fish. 
  Dorsal 
  fin 
  arising 
  at 
  a 
  point 
  half 
  as 
  

   distant 
  from 
  the 
  occiput 
  as 
  from 
  the 
  upper 
  caudal 
  lobe 
  ; 
  caudal 
  fin 
  

   (according 
  to 
  Wagner) 
  with 
  convex 
  hinder 
  border. 
  

  

  Form. 
  Sf 
  Loc. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  : 
  

   Bavaria. 
  

  

  Not 
  represented 
  in 
  the 
  Collection. 
  

  

  Liodesmus 
  sprattiformis, 
  Wagner. 
  

  

  1863. 
  Liodesmus 
  sprattiformis, 
  A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  Akad. 
  Wiss., 
  

   math.-phys. 
  CI. 
  vol. 
  ix. 
  p. 
  713, 
  pi. 
  v. 
  fig. 
  1. 
  

  

  Type. 
  Nearly 
  complete 
  fish 
  ; 
  Palseontological 
  Museum, 
  Munich. 
  

  

  A 
  species 
  attaining 
  a 
  length 
  of 
  about 
  0*09, 
  similar 
  in 
  proportions 
  

   to 
  the 
  type, 
  but 
  the 
  caudal 
  fin 
  distinctly 
  cleft; 
  pelvic 
  fins 
  arising 
  

   immediately 
  behind 
  a 
  point 
  opposite 
  to 
  the 
  origin 
  of 
  the 
  dorsal 
  fin. 
  

  

  Form. 
  $ 
  Loc. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  : 
  

   Bavaria. 
  

  

  37931. 
  Fine 
  nearly 
  complete 
  specimen, 
  in 
  counterpart; 
  Solen- 
  

   hofen. 
  The 
  large, 
  spaced 
  conical 
  teeth 
  are 
  shown 
  in 
  the 
  

   premaxilla, 
  maxilla, 
  and 
  dentary; 
  and 
  beneath 
  the 
  

   mandible 
  there 
  are 
  remains 
  both 
  of 
  the 
  gular 
  plate 
  and 
  

   branchiostegal 
  ra}*s. 
  The 
  neural 
  and 
  haemal 
  arches 
  are 
  

   somewhat 
  separated 
  by 
  crushing 
  ; 
  but 
  the 
  slender 
  ribs 
  in 
  

   the 
  abdominal 
  region 
  and 
  the 
  thickened 
  haemal 
  spines 
  at 
  

   the 
  base 
  of 
  the 
  tail 
  are 
  distinct. 
  The 
  characters 
  of 
  the 
  

   median 
  fin-rays 
  are 
  especially 
  well-displayed 
  ; 
  and 
  the 
  

   few 
  short 
  rays 
  at 
  the 
  origin 
  of 
  the 
  dorsal 
  fin 
  are 
  con- 
  

   spicuous. 
  The 
  squamation 
  is 
  scarcely 
  displaced 
  in 
  any 
  

   part, 
  but 
  it 
  is 
  difficult 
  to 
  determine 
  the 
  precise 
  form 
  and 
  

   proportions 
  of 
  the 
  deeply 
  overlapping 
  scales. 
  

  

  Haberlein 
  Coll. 
  

  

  P. 
  912. 
  Specimen 
  with 
  more 
  imperfectly 
  preserved 
  scales 
  and 
  

   caudal 
  fin, 
  and 
  wanting 
  the 
  anterior 
  half 
  of 
  the 
  head 
  ; 
  

   Solenhofen. 
  The 
  axial 
  skeleton 
  of 
  the 
  trunk, 
  the 
  pelvic 
  

   fin-supports, 
  and 
  the 
  impression 
  of 
  hard 
  coprolitic 
  matter 
  

   in 
  the 
  intestinal 
  tract, 
  are 
  noteworthy 
  features. 
  

  

  Egerton 
  Coll. 
  

  

  P. 
  3659. 
  Imperfect 
  fish, 
  partly 
  dorsal 
  and 
  partly 
  lateral 
  aspect 
  ; 
  

   Kelheim. 
  Enniskillen 
  Coll. 
  

  

  An 
  imperfect 
  small 
  fish 
  in 
  the 
  Dresden 
  Museum, 
  from 
  the 
  Litho- 
  

   graphic 
  Stone 
  of 
  Bavaria, 
  described 
  under 
  the 
  name 
  of 
  Lopliiurw 
  

  

  