﻿LEPTOLEPIDJE. 
  513 
  

  

  P. 
  930. 
  Smaller 
  specimen, 
  wanting 
  the 
  greater 
  part 
  of 
  the 
  head, 
  

   labelled 
  " 
  Leptolepis 
  paucispondylus 
  " 
  by 
  Miinster 
  ; 
  

   Kelheim. 
  Egerton 
  Coll* 
  

  

  22519. 
  Imperfect 
  small 
  fish 
  0*055 
  in 
  length 
  ; 
  Solenhofen. 
  

  

  Purchased, 
  1848. 
  

  

  37063. 
  Two 
  more 
  immature 
  specimens 
  ; 
  Solenhofen. 
  

  

  JSaberlein 
  ColL 
  

  

  P. 
  934. 
  Immature 
  fish, 
  somewhat 
  contorted, 
  probably 
  of 
  this 
  

   species 
  ; 
  Pointen. 
  Egerton 
  Coll. 
  

  

  37063, 
  37894, 
  37891, 
  37896. 
  Four 
  immature 
  fishes 
  with 
  incomplete 
  

   vertebral 
  centra, 
  probably 
  of 
  this 
  species 
  ; 
  Solenhofen. 
  

  

  Hdberlein 
  Coll* 
  

  

  P. 
  3671. 
  Similar 
  specimen, 
  labelled 
  " 
  Leptolepis 
  polyspondylus" 
  by 
  

   Miinster 
  ; 
  Pointen. 
  Enniskillen 
  Coll* 
  

  

  P. 
  935. 
  Another 
  immature 
  fish 
  ; 
  Kelheim. 
  Egerton 
  Coll. 
  

  

  Leptolepis 
  sprattiformis 
  (Blainville). 
  

  

  1755. 
  Figures 
  by 
  Gr. 
  TV. 
  Knorr, 
  Samml. 
  Merkwiirdigk. 
  Natur, 
  pi. 
  xxiii. 
  

  

  figs. 
  2, 
  3, 
  pi. 
  xxviii. 
  fig. 
  3, 
  pi. 
  xxix. 
  figs. 
  2-4. 
  

   1818. 
  Clupea 
  sprattiformis, 
  H. 
  D. 
  de 
  Blainville, 
  Nouv. 
  Diet. 
  d'Hist. 
  

  

  Nat. 
  vol. 
  xxvii. 
  p. 
  330. 
  

   (?) 
  1839. 
  Leptolepis 
  pusillus, 
  G. 
  von 
  Miinster, 
  Neues 
  Jahrb. 
  p. 
  680. 
  

  

  [Immature 
  fish 
  ; 
  Palseootological 
  Museum, 
  Munich.] 
  

   1833-44. 
  Leptolepis 
  sprattiformis 
  ', 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  i. 
  

  

  p. 
  13 
  ; 
  pt. 
  ii. 
  pp. 
  130, 
  294, 
  pi. 
  lxi. 
  a. 
  fig. 
  1. 
  

   1839-44. 
  Leptolepis 
  macrolepidotus, 
  L. 
  Agassiz, 
  ibid. 
  pt. 
  ii. 
  p. 
  132, 
  

  

  pi. 
  lxi. 
  figs. 
  4-6. 
  [Immature 
  fish.] 
  

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

  

  math.-phvs. 
  CI. 
  vol. 
  ix. 
  pp. 
  741, 
  744. 
  

   1888. 
  Leptolepis 
  sprattiformis, 
  K. 
  A. 
  von 
  Zittel, 
  Handb. 
  Palaeont. 
  

   Vol. 
  iii. 
  p. 
  272, 
  fig. 
  279. 
  

  

  Type. 
  Nearly 
  complete 
  fish 
  ; 
  Museum 
  of 
  Natural 
  History, 
  Paris. 
  

  

  A 
  small, 
  slender 
  species, 
  attaining 
  a 
  length 
  of 
  about 
  O'll, 
  but 
  

   usually 
  less. 
  Length 
  of 
  head 
  with 
  opercular 
  apparatus 
  considerably 
  

   exceeding 
  the 
  maximum 
  depth 
  of 
  the 
  trunk, 
  and 
  equalling 
  about 
  

   one-quarter 
  of 
  the 
  total 
  length 
  of 
  the 
  fish 
  ; 
  caudal 
  pedicle 
  compara- 
  

   tively 
  robust, 
  its 
  depth 
  about 
  half 
  the 
  maximum 
  depth 
  of 
  the 
  

   abdominal 
  region. 
  Vertebrae 
  about 
  50 
  in 
  number, 
  the 
  centra 
  short 
  

   and 
  stout, 
  and 
  the 
  neural 
  and 
  haemal 
  spines 
  in 
  the 
  anterior 
  part 
  of 
  

   the 
  caudal 
  region 
  gently 
  arcuated. 
  Pelvic 
  fins 
  arising 
  much 
  nearer 
  

   to 
  the 
  anal 
  than 
  to 
  the 
  pectorals 
  ; 
  dorsal 
  with 
  about 
  14 
  rays, 
  arising 
  

  

  PAET 
  III. 
  2 
  L 
  

  

  