﻿188 
  ACTINOPTERYGII. 
  

  

  minal 
  region 
  is 
  slightly 
  deeper. 
  Anterior 
  portion 
  of 
  dorsal 
  fin 
  

   nearly 
  twice 
  as 
  much 
  extended 
  as 
  the 
  second 
  portion, 
  both 
  about 
  

   equally 
  elevated 
  and 
  the 
  first 
  three 
  rays 
  of 
  each 
  more 
  approximated 
  

   than 
  the 
  others 
  ; 
  the 
  anterior 
  portion 
  with 
  about 
  13 
  rays, 
  the 
  pos- 
  

   terior 
  portion 
  with 
  not 
  less 
  than 
  11 
  or 
  12 
  rays, 
  which 
  are 
  somewhat 
  

   less 
  widely 
  spaced. 
  Anal 
  fin 
  arising 
  opposite 
  the 
  middle 
  of 
  the 
  

   hinder 
  portion 
  of 
  the 
  dorsal. 
  Scales 
  conspicuously 
  denticulated, 
  

   except 
  those 
  of 
  the 
  pectoral 
  region, 
  which 
  are 
  more 
  or 
  less 
  cycloidal. 
  

   Form. 
  <$f 
  Loc. 
  Lower 
  Kimmeridgian 
  (Lithographic 
  Stone) 
  : 
  Ba- 
  

   varia. 
  

  

  P. 
  3610-11. 
  Two 
  specimens, 
  the 
  first 
  with 
  imperfect 
  head, 
  the 
  

   second 
  very 
  fragmentary 
  and 
  chiefly 
  in 
  impression 
  ; 
  Kel- 
  

   heim, 
  Bavaria. 
  Ennislcillen 
  Coll. 
  

  

  P. 
  1089. 
  Another 
  imperfect 
  specimen 
  exhibiting 
  the 
  rounded 
  scales 
  

   in 
  the 
  pectoral 
  region 
  ; 
  Kelheim. 
  Egerton 
  Coll. 
  

  

  P. 
  1090. 
  Small 
  fish 
  about 
  0*055 
  in 
  length, 
  probably 
  young 
  of 
  this 
  

   species; 
  Kelheim. 
  Egerton 
  Coll. 
  

  

  Notagogus 
  inimontis, 
  Thiolliere. 
  

  

  1850. 
  Notagogus 
  Imi 
  montis, 
  V. 
  Thiolliere, 
  Ann. 
  Soc. 
  Sci. 
  Phys. 
  & 
  Nat. 
  

  

  Lyon, 
  [2] 
  vol. 
  iii. 
  p. 
  137. 
  

   1858. 
  Notagogus 
  iunismontis, 
  V. 
  Thiolliere, 
  Bull. 
  Soc. 
  G6ol. 
  France, 
  

  

  [2] 
  vol. 
  xv. 
  p. 
  783 
  (name 
  only). 
  

   1873. 
  Notagogus 
  inimontis, 
  V. 
  Thiolliere, 
  Poiss. 
  Foss. 
  Bugey, 
  pt. 
  ii. 
  

  

  p. 
  15, 
  pi. 
  vi. 
  fig. 
  3. 
  

   1893. 
  Notagogus 
  inimontis, 
  H. 
  E. 
  Sauvage, 
  Bull. 
  Soc. 
  Hist. 
  Nat. 
  

  

  Autun, 
  vol. 
  vi. 
  p. 
  428. 
  

  

  Type. 
  Nearly 
  complete 
  fish 
  ; 
  Lyons 
  Museum. 
  

  

  A 
  species 
  doubtfully 
  distinct 
  from 
  N. 
  denticulatus, 
  but 
  described 
  

   by 
  Sauvage 
  as 
  separated 
  by 
  its 
  relatively 
  larger 
  teeth 
  and 
  steeper 
  

   facial 
  profile 
  of 
  the 
  head. 
  

  

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

   France. 
  

   P. 
  4692. 
  Trunk 
  without 
  head 
  ; 
  Cirin, 
  Ain. 
  Purchased, 
  1884. 
  

  

  Notagogus 
  macropterus, 
  Vetter. 
  

  

  1881. 
  Notagogus 
  macropterus, 
  B. 
  Vetter, 
  Mittheil. 
  k. 
  mineral.-geol. 
  

   Mus. 
  Dresden, 
  pt. 
  iv. 
  p. 
  46. 
  

  

  Type. 
  Fish, 
  wanting 
  caudal 
  fin 
  ; 
  Dresden 
  Museum. 
  

  

  A 
  species 
  closely 
  related 
  to 
  N. 
  denticulatus, 
  described 
  as 
  differing 
  

  

  