﻿CATOPTERID-E. 
  O 
  

  

  P. 
  3515. 
  Fragment 
  showing 
  fine 
  serrations 
  on 
  flank-scales 
  ; 
  Dur- 
  

   ham. 
  EnniskUlen 
  Coll. 
  

  

  Catopterus 
  redfieldi, 
  Egerton. 
  

  

  1847. 
  Catopterus 
  redfieldi, 
  Sir 
  P. 
  Egerton, 
  Quart. 
  Journ. 
  Geol. 
  Soc. 
  

  

  vol. 
  iii. 
  p. 
  278. 
  

   1888. 
  Catopterus 
  redfieldi, 
  J. 
  S. 
  Newberry, 
  Foss. 
  Fishes 
  Trias. 
  IS". 
  Jersey 
  

  

  and 
  Connecticut 
  (3Ion. 
  U.S. 
  Geol. 
  Surv. 
  no. 
  xiv.), 
  p. 
  53, 
  pi. 
  xv. 
  

  

  figs. 
  1-3. 
  

  

  Type. 
  Nearly 
  complete 
  fish. 
  

  

  A 
  comparatively 
  robust 
  species 
  as 
  large 
  as 
  the 
  type. 
  Length 
  of 
  

   head 
  with 
  opercular 
  apparatus 
  not 
  more 
  than 
  two-thirds 
  as 
  great 
  as 
  

   the 
  maximum 
  depth 
  of 
  the 
  trunk 
  and 
  contained 
  nearly 
  six 
  times 
  

   iu 
  the 
  total 
  length 
  of 
  the 
  fish 
  ; 
  depth 
  of 
  caudal 
  pedicle 
  equalling 
  

   about 
  one-third 
  that 
  of 
  the 
  abdominal 
  region. 
  Cranial 
  bones 
  

   finely 
  granulated. 
  Pelvic 
  fins 
  arising 
  midway 
  between 
  the 
  pec- 
  

   torals 
  and 
  the 
  anal 
  ; 
  dorsal 
  and 
  anal 
  fins 
  nearly 
  equal 
  in 
  size, 
  and 
  

   the 
  former 
  arising 
  opposite 
  to 
  the 
  middle 
  of 
  the 
  latter. 
  Scales 
  

   mostly 
  smooth, 
  but 
  sometimes 
  in 
  part 
  longitudinally 
  striated, 
  the 
  

   striae 
  terminating 
  in 
  the 
  coarse 
  serrations 
  of 
  the 
  posterior 
  border 
  

   which 
  characterize 
  the 
  principal 
  flank-scales 
  : 
  many 
  of 
  the 
  flank- 
  

   scales 
  deeper 
  than 
  broad. 
  

  

  The 
  so-called 
  Catopterus 
  minor 
  (Newberry, 
  op. 
  cit. 
  18S8, 
  p. 
  57, 
  

   pi. 
  xvii.), 
  from 
  Durham, 
  Connecticut, 
  is 
  probably 
  founded 
  on 
  young 
  

   individuals 
  of 
  this 
  species 
  variously 
  distorted. 
  It 
  is 
  also 
  uncertain 
  

   whether 
  or 
  not 
  Catopterus 
  ornatus 
  (Newberry, 
  ibid. 
  p. 
  53, 
  pi. 
  xviii. 
  

   fig. 
  3) 
  must 
  be 
  placed 
  here. 
  The 
  type 
  is 
  a 
  unique, 
  much 
  distorted, 
  

   small 
  specimen 
  from 
  Durham, 
  which 
  seems 
  to 
  have 
  been 
  chemically 
  

   eroded 
  in 
  such 
  a 
  way 
  as 
  to 
  display 
  the 
  concentric 
  lines 
  of 
  growth 
  in 
  

   the 
  scales. 
  

  

  Form. 
  $• 
  Loc. 
  Triassic 
  : 
  Connecticut 
  and 
  New 
  Jersey, 
  U.S.A. 
  

  

  P. 
  3513. 
  Imperfectly 
  preserved 
  specimen 
  ; 
  Durham, 
  Connecticut. 
  

  

  EnniskUlen 
  Coll. 
  

  

  Vertically 
  crushed 
  specimens 
  of 
  Catopterus, 
  very 
  imperfectly 
  pre- 
  

   served, 
  seem 
  to 
  have 
  been 
  erroneously 
  described 
  as 
  representing 
  a 
  

   distinct 
  species, 
  Catopterus 
  anguilliformis 
  (W. 
  C. 
  Eedfield, 
  Amer. 
  

   Journ. 
  Sci. 
  vol. 
  xli. 
  1841, 
  p. 
  27, 
  and 
  J. 
  S. 
  Newberry, 
  Mon. 
  U.S. 
  

   Geol. 
  Surv. 
  no. 
  xiv. 
  1888, 
  p. 
  59, 
  pi. 
  xviii. 
  fig. 
  5), 
  the 
  type 
  being 
  in 
  

   the 
  Eedfield 
  Collection, 
  Tale 
  College 
  Museum. 
  The 
  following 
  is 
  a 
  

   specimen 
  of 
  this 
  character 
  : 
  — 
  

  

  P. 
  1019. 
  Imperfect, 
  vertically-crushed 
  remains 
  of 
  a 
  large 
  fish. 
  Tri- 
  

   assic 
  ; 
  Middletown, 
  "Westfield, 
  Connecticut. 
  Egerton 
  Coll. 
  

  

  