﻿LEPTOLEPIDJE. 
  519 
  

  

  Form. 
  4' 
  Loc. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone): 
  

  

  Bavaria. 
  

  

  49130. 
  Plaster 
  cast 
  of 
  fine 
  specimen 
  noticed 
  by 
  Wagner, 
  loc. 
  cit. 
  

   p. 
  729 
  ; 
  Eichstadt. 
  Purchased, 
  1878. 
  

  

  49134. 
  Plaster 
  cast 
  of 
  type 
  specimen 
  of 
  so-called 
  Aethalion 
  inflatus 
  ; 
  

   Kelheim. 
  Purchased, 
  1878. 
  

  

  P. 
  1095. 
  Counterpart 
  of 
  the 
  same, 
  showing 
  most 
  of 
  the 
  principal 
  

   characters 
  of 
  the 
  species 
  ; 
  Kelheim. 
  Egerton 
  Coll. 
  

  

  37903. 
  Nearly 
  complete 
  fish 
  displaying 
  the 
  form 
  of 
  the 
  mandible 
  

  

  Haberlein 
  Coll. 
  

  

  and 
  the 
  situation 
  of 
  the 
  fins 
  ; 
  Solenhofen. 
  

  

  37042. 
  Remains 
  of 
  a 
  coiled-up 
  fish, 
  in 
  counterpart, 
  displaying 
  the 
  

   jaws 
  and 
  caudal 
  fin 
  ; 
  Solenhofen. 
  Haberlein 
  Coll. 
  

  

  32477. 
  Another 
  imperfect 
  specimen, 
  wanting 
  dorsal 
  and 
  anal 
  fins 
  ; 
  

   Solenhofen. 
  Tesson 
  Coll. 
  

  

  Aethalion 
  angustus, 
  Miinster. 
  

  

  1839. 
  Caturus 
  angustus, 
  G. 
  yon 
  Miinster, 
  Neues 
  Jahrb. 
  p. 
  679. 
  

  

  1842. 
  Aethalion 
  angustus, 
  G. 
  von 
  Miinster, 
  ibid. 
  p. 
  42. 
  

  

  1842. 
  Aethalion 
  tenuis, 
  G. 
  von 
  Miinster, 
  ibid. 
  p. 
  42. 
  [Imperfect 
  fish 
  ; 
  

  

  Palseontological 
  Museum, 
  Munich.] 
  

   1842. 
  Aethalion 
  parvus, 
  G. 
  von 
  Miinster, 
  ibid. 
  p. 
  43. 
  [Ditto.] 
  

   1863. 
  Aethalion 
  tenuis, 
  A. 
  Wagner, 
  Abh. 
  k. 
  bay. 
  Akad. 
  Wiss., 
  math.- 
  

  

  phys. 
  CI. 
  vol. 
  ix. 
  p. 
  730. 
  

  

  Type. 
  Imperfect 
  fish 
  ; 
  Palssontological 
  Museum, 
  Munich. 
  

  

  A 
  small 
  fish, 
  possibly 
  the 
  young 
  of 
  the 
  preceding 
  species 
  (as 
  

   suggested 
  by 
  Wagner), 
  but 
  with 
  a 
  more 
  slender 
  trunk. 
  The 
  

   specimen 
  noticed 
  below, 
  which 
  is 
  labelled 
  by 
  Miinster, 
  also 
  has 
  the 
  

   anal 
  fin 
  slightly 
  further 
  forwards 
  than 
  in 
  A.. 
  Tcnorri. 
  

  

  Form. 
  6f- 
  Loc. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  : 
  

   Bavaria. 
  

  

  P. 
  3575. 
  Pish 
  measuring 
  0-075 
  in 
  length 
  without 
  the 
  caudal 
  fin, 
  

   which 
  is 
  wanting 
  ; 
  Kelheim. 
  The 
  head 
  with 
  opercular 
  

   apparatus 
  measures 
  about 
  0*02 
  in 
  length, 
  while 
  the 
  

   maximum 
  depth 
  of 
  the 
  trunk 
  appears 
  to 
  have 
  been 
  0*013. 
  

   Ten 
  supports 
  can 
  be 
  counted 
  in 
  the 
  anal 
  fin, 
  and 
  there 
  

   are 
  distinctly 
  more 
  in 
  the 
  dorsal. 
  The 
  vertebral 
  centra 
  

   are 
  fully 
  formed 
  and 
  are 
  suggestive 
  of 
  an 
  adult 
  fish. 
  

  

  Ennisl'illcn 
  Coll. 
  

  

  