﻿452 
  

  

  ACTINOPTERTGII. 
  

  

  

  fig. 
  1, 
  and 
  the 
  apparent 
  depth 
  of 
  the 
  trunk 
  is 
  increased 
  by 
  

   the 
  extension 
  of 
  the 
  dorsal 
  and 
  ventral 
  squamation. 
  One 
  

   of 
  the 
  pectoral 
  fins 
  is 
  fringed 
  with 
  minute 
  fulcra. 
  

  

  Purchased, 
  1866. 
  

  

  39857. 
  Ventral 
  aspect 
  of 
  an 
  equally 
  large 
  specimen, 
  showing 
  the 
  

   paired 
  fins 
  without 
  fulcra. 
  Purchased, 
  1866. 
  

  

  38107-9. 
  A 
  somewhat 
  smaller 
  fish 
  and 
  two 
  distorted 
  specimens. 
  

   The 
  first 
  exhibits 
  at 
  least 
  10 
  branchiostegal 
  rays 
  on 
  the 
  

   right 
  side, 
  and 
  also 
  the 
  small 
  triangular 
  premaxilla 
  ; 
  the 
  

   third 
  shows 
  minute 
  fulcra 
  on 
  the 
  right 
  pelvic 
  fin. 
  

  

  Purchased, 
  1864. 
  

  

  P. 
  1051 
  a. 
  Well-preserved 
  fish 
  0*13 
  in 
  length, 
  distorted 
  by 
  crushing 
  

   ventrally. 
  Egerton 
  Coll. 
  

  

  21504. 
  Distorted 
  fish. 
  

  

  Purchased, 
  1847. 
  

  

  P. 
  6030. 
  Fish 
  0-12 
  in 
  length, 
  imperfectly 
  preserved 
  but 
  apparently 
  

   not 
  distorted. 
  Presented 
  by 
  George 
  Clifton, 
  Esq., 
  1889. 
  

  

  38535. 
  Slightly 
  smaller 
  fish, 
  distorted 
  ventrally. 
  Purchased, 
  1864. 
  

  

  P. 
  3587. 
  Another 
  similar 
  specimen, 
  labelled 
  " 
  Pholidophorus 
  ony- 
  

   chius, 
  Ag.," 
  in 
  Agassiz' 
  handwriting, 
  but 
  exhibiting 
  

   flank-scales 
  with 
  pegs 
  as 
  stout 
  as 
  those 
  supposed 
  to 
  

   characterize 
  P. 
  bechei. 
  Enniskillen 
  Coll. 
  

  

  P. 
  3588, 
  P. 
  3589 
  a-c. 
  Four 
  specimens 
  from 
  0-11 
  to 
  0*067 
  in 
  

   length, 
  the 
  first 
  labelled 
  "Pholidophorus 
  latiusculus, 
  

   Ag.," 
  in 
  Agassiz' 
  handwriting, 
  the 
  third 
  especially 
  well- 
  

   preserved 
  in 
  side 
  view 
  and 
  showing 
  much 
  variation 
  in 
  

   the 
  length 
  and 
  stoutness 
  of 
  the 
  articular 
  pegs 
  of 
  the 
  

   flank-scales 
  (PI. 
  XII. 
  fig. 
  2). 
  Enniskillen 
  Coll. 
  

  

  36473-74, 
  37372 
  ? 
  37377. 
  Three 
  small 
  individuals 
  and 
  one 
  0-14 
  in 
  

   length, 
  all 
  distorted. 
  Purchased, 
  1862-63. 
  

  

  P. 
  153-4. 
  Two 
  small 
  distorted 
  specimens. 
  

  

  Purchased, 
  1880. 
  

  

  39859. 
  Fish 
  0*075 
  in 
  length, 
  deepened 
  anteriorly 
  by 
  crushing. 
  

  

  Purchased, 
  1866. 
  

  

  19010. 
  Imperfect 
  pyritized 
  specimen, 
  probably 
  of 
  this 
  species, 
  

   showing 
  ring- 
  vertebras 
  in 
  the 
  caudal 
  region. 
  

  

  Purchased. 
  1844. 
  

  

  