﻿506 
  ACTINOPTERYGII. 
  

  

  tively 
  robust. 
  Vertebral 
  centra 
  in 
  the 
  form 
  of 
  thin 
  cylinders, 
  not 
  

   much 
  constricted 
  and 
  none 
  much 
  longer 
  than 
  deep. 
  Fins 
  as 
  in 
  the 
  

   type 
  species. 
  

  

  Form. 
  Sf 
  Loc. 
  Upper 
  Lias 
  : 
  Wiirtemberg. 
  

  

  19637-40. 
  Three 
  specimens, 
  one 
  being 
  in 
  counterpart 
  and 
  the 
  largest 
  

   about 
  0*12 
  in 
  length 
  ; 
  Boll. 
  In 
  the 
  third 
  specimen 
  the 
  

   head 
  is 
  elongated 
  by 
  crushing 
  and 
  displays 
  several 
  of 
  the 
  

   bones. 
  Purchased, 
  1845. 
  

  

  Leptolepis 
  autissiodorensis, 
  Sauvage. 
  

  

  1892. 
  Leptolepis 
  autissiodorensis, 
  H. 
  E. 
  Sauvage, 
  Bull. 
  Soc. 
  Hist. 
  Nat. 
  

   Autun, 
  vol. 
  v. 
  p. 
  393, 
  pi. 
  xvi. 
  fig. 
  2 
  (reprinted 
  in 
  Bull. 
  Soc. 
  Sci. 
  

   Yonne, 
  vol. 
  xlvii. 
  1893, 
  p. 
  28, 
  pi. 
  i. 
  fig. 
  2). 
  

  

  Type. 
  Nearly 
  complete 
  fish. 
  

  

  A 
  robust 
  species 
  attaining 
  a 
  length 
  of 
  about 
  01. 
  Length 
  of 
  head 
  

   with 
  opercular 
  apparatus 
  about 
  equalling 
  the 
  maximum 
  depth 
  of 
  

   the 
  trunk 
  and 
  contained 
  about 
  four-and-a-half 
  times 
  in 
  the 
  total 
  

   length 
  of 
  the 
  fish 
  ; 
  width 
  of 
  caudal 
  pedicle 
  equalling 
  one- 
  quarter 
  

   the 
  maximum 
  depth 
  of 
  the 
  abdominal 
  region. 
  Vertebrae 
  and 
  fins 
  

   as 
  in 
  the 
  type 
  species. 
  

  

  Form. 
  Sf 
  Log. 
  Upper 
  Lias: 
  Yonne, 
  France. 
  

  

  Not 
  represented 
  in 
  the 
  Collection. 
  

  

  Leptolepis 
  talbragarensis, 
  A. 
  S. 
  Woodward. 
  

  

  [Described 
  in 
  forthcoming 
  Mem. 
  Geol. 
  Surv. 
  N. 
  S. 
  Wales, 
  Palaeont. 
  

   no. 
  9, 
  with 
  drawings 
  on 
  pi. 
  vi. 
  figs. 
  1-8.] 
  

  

  Type. 
  Nearly 
  complete 
  fish 
  ; 
  Geol. 
  Survey 
  Museum, 
  Sydney. 
  

  

  A 
  robust 
  species 
  ordinarily 
  attaining 
  a 
  length 
  not 
  exceeding 
  0*15. 
  

   Length 
  of 
  head 
  with 
  opercular 
  apparatus 
  less 
  than 
  the 
  maximum 
  

   depth 
  of 
  the 
  trunk, 
  and 
  somewhat 
  less 
  than 
  one-fifth 
  of 
  the 
  total 
  

   length 
  of 
  the 
  fish 
  ; 
  caudal 
  pedicle 
  robust, 
  nearly 
  half 
  as 
  deep 
  as 
  the 
  

   abdominal 
  region. 
  Vertebrae 
  about 
  45 
  in 
  number, 
  the 
  centra 
  

   scarcely 
  longer 
  than 
  deep 
  in 
  the 
  anterior 
  part 
  of 
  the 
  caudal 
  region, 
  

   and 
  forming 
  thin, 
  smooth 
  constricted 
  cylinders 
  ; 
  the 
  neural 
  and 
  

   haemal 
  arches 
  in 
  the 
  anterior 
  part 
  of 
  the 
  caudal 
  region 
  gently 
  

   arcuated, 
  not 
  depressed. 
  Pelvic 
  fins 
  arising 
  slightly 
  nearer 
  to 
  the 
  

   anal 
  than 
  to 
  the 
  pectorals; 
  dorsal 
  with 
  about 
  12 
  rays, 
  arising 
  in 
  

   advance 
  of 
  the 
  middle 
  point 
  of 
  the 
  back 
  and 
  immediately 
  behind 
  

   the 
  origin 
  of 
  the 
  pelvic 
  fins 
  ; 
  anal 
  fin 
  with 
  about 
  9 
  rays, 
  arising 
  

   midway 
  between 
  the 
  pelvic 
  and 
  caudal 
  fins. 
  

  

  Form. 
  Sf 
  Loc. 
  Upper 
  Hawkesbury-Wianamatta 
  Series 
  : 
  Talbra- 
  

   gar, 
  New 
  South 
  Wales. 
  

  

  Not 
  represented 
  in 
  the 
  Collection. 
  

  

  