﻿482 
  ACTINOPTERYGII. 
  

  

  anal 
  midway 
  between 
  these 
  and 
  the 
  caudal. 
  Scales 
  smooth, 
  not 
  

   serrated. 
  

  

  Form. 
  Sj- 
  Loc. 
  Upper 
  Trias 
  : 
  Raibl, 
  Carinthia. 
  

  

  P. 
  1099 
  a. 
  The 
  type 
  specimen, 
  counterpart 
  of 
  specimen 
  described 
  

   and 
  figured 
  by 
  Bronn, 
  loc. 
  cit. 
  Egerton 
  Coll. 
  

  

  P. 
  1099 
  b. 
  A 
  more 
  imperfect, 
  vertically-crushed 
  fish, 
  shown 
  of 
  the 
  

   natural 
  size 
  in 
  PI. 
  XIV. 
  fig. 
  4 
  ; 
  displaying 
  one 
  median 
  

   and 
  one 
  paired 
  series 
  of 
  scales 
  above 
  the 
  deepened 
  flank- 
  

   scales, 
  also 
  the 
  situation 
  of 
  the 
  very 
  short 
  dorsal 
  fin 
  (d). 
  

  

  Egerton 
  Coll. 
  

  

  Peltopleurus 
  humilis, 
  Kner. 
  

  

  1850. 
  Semionotus 
  curtulus, 
  0. 
  G. 
  Costa, 
  Atti 
  Accad. 
  Pontan. 
  vol. 
  v. 
  

  

  p. 
  294, 
  pi. 
  vi. 
  figs. 
  4, 
  5 
  (in 
  part). 
  

   1867. 
  Peltopleurus 
  humilis, 
  R. 
  Kner, 
  Sitzungsb. 
  k. 
  Akad. 
  Wiss., 
  math.- 
  

  

  naturw. 
  CI. 
  vol. 
  lvi. 
  pt. 
  i. 
  p. 
  905, 
  pi. 
  i. 
  fig. 
  2. 
  

   1892. 
  Peltopleurus 
  humilis, 
  F. 
  Bassani, 
  Mem. 
  Soc. 
  ltal. 
  Sci. 
  [3] 
  vol. 
  ix. 
  

  

  no. 
  3, 
  pp. 
  12, 
  23. 
  

  

  Type. 
  Imperfect 
  fish 
  ; 
  Innsbruck 
  Museum. 
  

  

  A 
  species 
  much 
  smaller 
  than 
  the 
  type, 
  with 
  relatively 
  large 
  head 
  

   and 
  more 
  elongated 
  trunk. 
  Length 
  of 
  head 
  with 
  opercular 
  apparatus 
  

   equalling 
  the 
  maximum 
  depth 
  of 
  the 
  trunk 
  and 
  contained 
  about 
  

   four 
  times 
  in 
  the 
  total 
  length 
  of 
  the 
  fish 
  ; 
  width 
  of 
  caudal 
  pedicle 
  

   about 
  equalling 
  one-half 
  the 
  depth 
  of 
  the 
  deepest 
  flank-scales. 
  

   Pelvic 
  fins 
  arising 
  slightly 
  in 
  advance 
  of 
  the 
  middle 
  point 
  of 
  the 
  

   trunk, 
  the 
  anal 
  very 
  shortly 
  behind, 
  and 
  the 
  dorsal 
  opposed 
  to 
  the 
  

   intervening 
  space. 
  Scales 
  smooth, 
  not 
  serrated. 
  

  

  Form. 
  <Sf 
  Loc. 
  Upper 
  Trias 
  : 
  Tyrol 
  ; 
  GifToni, 
  Province 
  of 
  Salerno, 
  

   Italy. 
  

  

  P. 
  1103. 
  Slab 
  with 
  two 
  imperfect 
  specimens, 
  one 
  in 
  counterpart 
  ; 
  

  

  Seefeld. 
  Egerton 
  Coll. 
  

  

  Another 
  imperfect 
  fish 
  from 
  Raibl, 
  with 
  horizontally 
  striated 
  

   flank-scales, 
  now 
  in 
  the 
  Museum 
  of 
  the 
  Imperial 
  Geological 
  Survey, 
  

   Vienna, 
  is 
  provisionally 
  named 
  Peltopleurus 
  gracilis 
  by 
  R. 
  Kner, 
  

   Sitzungsb. 
  k. 
  Akad. 
  Wiss., 
  math.-naturw. 
  CI. 
  vol. 
  liii. 
  pt. 
  i. 
  (1866), 
  

   p. 
  183, 
  footnote. 
  

  

  Genus 
  PLEUROPHOLIS, 
  Egerton. 
  

  

  [Pigs. 
  & 
  Descript. 
  Brit. 
  Organic 
  Remains, 
  dec. 
  ix. 
  (Mem. 
  

   Geol.Surv. 
  1858), 
  no. 
  7.] 
  

  

  Trunk 
  elongate-fusiform, 
  and 
  upper 
  caudal 
  lobe 
  conspicuous. 
  

   External 
  bones 
  smooth 
  or 
  delicately 
  ornamented 
  with 
  rugae 
  and 
  

  

  