﻿470 
  ACTINOPTERYGIl. 
  

  

  P. 
  1068. 
  Scattered 
  remains 
  of 
  a 
  small 
  fish, 
  probably 
  of 
  this 
  species, 
  

   labelled 
  " 
  Pholidophorus 
  latus, 
  Agass.," 
  by 
  Agassiz 
  ; 
  Solen- 
  

   hofen. 
  Egerton 
  Coll. 
  

  

  Pholidophorus 
  similis, 
  sp. 
  nov. 
  

   [Plate 
  XIII. 
  fig. 
  2.] 
  

  

  Type. 
  Nearly 
  complete 
  fish 
  ; 
  British 
  Museum. 
  

  

  A 
  species 
  of 
  moderate 
  size. 
  Length 
  of 
  head 
  with 
  opercular 
  

   apparatus 
  nearly 
  equalling 
  the 
  maximum 
  depth 
  of 
  the 
  trunk, 
  which 
  

   is 
  contained 
  from 
  four- 
  and- 
  a-half 
  to 
  five 
  times 
  in 
  the 
  total 
  length 
  

   of 
  the 
  fish. 
  Head 
  and 
  opercular 
  bones 
  very 
  finely 
  rugose. 
  Fin-rays 
  

   stout 
  and 
  smooth. 
  Pelvic 
  fins 
  arising 
  far 
  in 
  advance 
  of 
  the 
  middle 
  

   point 
  of 
  the 
  trunk, 
  and 
  the 
  dorsal 
  fin 
  opposed 
  to 
  them. 
  Scales 
  large, 
  

   ornamented 
  with 
  fine 
  oblique 
  striations, 
  more 
  or 
  less 
  radiating, 
  and 
  

   terminating 
  at 
  the 
  hinder 
  margin 
  in 
  denticulations 
  ; 
  several 
  series 
  

   of 
  flank-scales 
  deeper 
  than 
  broad 
  ; 
  the 
  orifices 
  of 
  the 
  lateral 
  line 
  

   inconspicuous. 
  

  

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

   France. 
  

  

  P. 
  1083. 
  Type 
  specimen, 
  wanting 
  the 
  anterior 
  half 
  of 
  the 
  head, 
  

   shown 
  of 
  the 
  natural 
  size 
  in 
  PI. 
  XIII. 
  fig. 
  2 
  ; 
  Cirin. 
  The 
  

   squamation 
  and 
  caudal 
  fin 
  are 
  well 
  shown, 
  and 
  portions 
  

   of 
  all 
  the 
  other 
  fins 
  occur, 
  the 
  dorsal 
  being 
  evidently 
  dis- 
  

   placed 
  a 
  little 
  forwards. 
  The 
  large 
  ridge-scale 
  on 
  the 
  

   upper 
  border 
  of 
  the 
  caudal 
  pedicle 
  is 
  especially 
  prominent. 
  

  

  Egerton 
  Coll. 
  

  

  Pholidophorus 
  granulatus, 
  Egerton. 
  

  

  1854. 
  Pholidophorus 
  granulatus, 
  Sir 
  P. 
  Egerton, 
  Ann. 
  Mag. 
  Nat. 
  Hist. 
  

   [2] 
  vol. 
  xiii. 
  p. 
  434. 
  

  

  1855. 
  Pholidophorus 
  granulatus, 
  Sir 
  P. 
  Egerton, 
  Figs. 
  & 
  Descript. 
  Brit. 
  

   Organic 
  Eemains, 
  dec. 
  viii. 
  (Mem. 
  Geol. 
  Surv.), 
  no. 
  4, 
  pi. 
  iv. 
  

   figs. 
  1, 
  2. 
  

  

  Type. 
  Fish 
  wanting 
  caudal 
  fin: 
  Dorset 
  County 
  Museum, 
  Dor- 
  

   chester. 
  

  

  A 
  large 
  robust 
  species, 
  attaining 
  a 
  length 
  of 
  about 
  0*3. 
  Maximum 
  

   depth 
  of 
  trunk 
  equalling 
  about 
  one-third 
  of 
  the 
  total 
  length 
  of 
  the 
  

   fish. 
  Head 
  and 
  opercular 
  bones 
  finely 
  tuberculated 
  or 
  rugose, 
  the 
  

   tuberculations 
  extending 
  upon 
  the 
  dorsal 
  scales 
  of 
  the 
  abdominal 
  

   region. 
  Fin-rays 
  smooth 
  and 
  stout; 
  fulcra 
  conspicuous. 
  Pelvic 
  

   fins 
  arising 
  far 
  in 
  advance 
  of 
  the 
  middle 
  point 
  of 
  the 
  trunk, 
  and 
  

   the 
  dorsal 
  fin 
  opposed 
  to 
  them. 
  Scales 
  large, 
  ornamented 
  with 
  very 
  

  

  