﻿SEIIIONOTID^. 
  

  

  75 
  

  

  1891. 
  Lepidotus 
  ragazzonii, 
  A. 
  de 
  Zigno, 
  Mem. 
  R. 
  Accad. 
  Lincei, 
  [4] 
  

   yoI. 
  vii. 
  p. 
  8, 
  pi. 
  ii. 
  figs. 
  1, 
  2. 
  [Nearly 
  complete 
  fish 
  ; 
  University 
  

   of 
  Padua.] 
  

  

  1892. 
  Lepidotus 
  (Colobodus?) 
  latus, 
  F. 
  Bassani, 
  Mem. 
  Soc. 
  Ital. 
  Sci. 
  

   [3] 
  vol. 
  ix. 
  no. 
  3, 
  p. 
  24. 
  

  

  Type. 
  Portion 
  of 
  fish. 
  : 
  Palaeontological 
  Museum, 
  Munich. 
  

  

  A 
  species 
  attaining 
  a 
  length 
  of 
  about 
  035 
  ; 
  general 
  proportions, 
  

   teeth, 
  and 
  external 
  ornamentation 
  of 
  hones 
  as 
  in 
  C. 
  ornatus. 
  Scales 
  

   smooth 
  and 
  without 
  serrations, 
  except 
  in 
  the 
  lower 
  half 
  of 
  the 
  

   abdominal 
  flank, 
  where 
  they 
  are 
  often 
  marked 
  with 
  feeble 
  oblique 
  

   striations 
  and 
  pectinated 
  at 
  the 
  hinder 
  margin 
  ; 
  principal 
  flank- 
  

   scales 
  considerably 
  deeper 
  than 
  broad. 
  

  

  Form. 
  <Sr 
  Log. 
  Upper 
  Triassic 
  : 
  Tyrol 
  ; 
  Italy. 
  

  

  21377. 
  Portion 
  of 
  trunk, 
  with 
  fragment 
  of 
  head 
  ; 
  Seefeld, 
  Tyrol. 
  

  

  Purchased, 
  1847. 
  

  

  P. 
  1104, 
  P. 
  3622 
  a. 
  Imperfect 
  head 
  and 
  abdominal 
  region 
  of 
  smaller 
  

   fish, 
  in 
  counterpart 
  ; 
  Seefeld. 
  

  

  Egerton 
  and 
  Enniskillen 
  Colls. 
  

  

  P. 
  604. 
  Caudal 
  region, 
  showing 
  anal 
  and 
  caudal 
  fins, 
  described 
  by 
  

   Egerton 
  (he. 
  tit. 
  1843) 
  as 
  the 
  type 
  specimen 
  of 
  Semionotus 
  

   pentlandi 
  ; 
  Giffoni, 
  province 
  of 
  Salerno, 
  Italy. 
  

  

  Egerton 
  Coll. 
  

  

  P. 
  602. 
  Very 
  imperfect 
  fragment 
  of 
  opercular 
  apparatus 
  and 
  flank- 
  

   squama 
  tion 
  probably 
  pertaining 
  to 
  this 
  species, 
  described 
  by 
  

   Egerton 
  (Joe. 
  cit. 
  1843) 
  as 
  the 
  type 
  specimen 
  of 
  Semionotus 
  

   jpustidifer 
  ; 
  Giffoni. 
  Egerton 
  Coll. 
  

  

  P. 
  1549. 
  Portion 
  of 
  trunk 
  of 
  a 
  small 
  fish, 
  perhaps 
  young 
  of 
  this 
  

   species 
  ; 
  Seefeld. 
  The 
  principal 
  flank-scales 
  are 
  extremely 
  

   finely 
  serrated 
  on 
  their 
  hinder 
  margin, 
  and 
  the 
  specimen 
  

   bears 
  the 
  MS. 
  name 
  of 
  Semionotus 
  tenuiserratus, 
  Egerton. 
  

  

  Egerton 
  Coll. 
  

  

  Scales 
  of 
  an 
  undetermined 
  species 
  of 
  Colobodus 
  have 
  been 
  recorded 
  

   from 
  the 
  Rhsetic 
  of 
  Aust 
  ClifT, 
  near 
  Bristol 
  (M. 
  Browne, 
  Rep. 
  Brit. 
  

   Assoc. 
  1891, 
  p. 
  645), 
  and 
  the 
  undermentioned 
  scale 
  appears 
  to 
  be 
  

   referable 
  to 
  this 
  genus 
  : 
  — 
  

  

  P. 
  7405. 
  Rhombic 
  scale 
  0*007 
  in 
  depth, 
  with 
  a 
  few 
  superficial 
  

   pittings 
  tending 
  to 
  oblique 
  elongation 
  and 
  at 
  least 
  four 
  

   long 
  slender 
  digitations 
  obliquely 
  directed 
  downwards 
  at 
  

   its 
  postero-inferior 
  angle 
  ; 
  Rhgetic 
  Bone-bed, 
  Aust 
  Cliff. 
  

  

  Egerton 
  Coll. 
  

  

  