﻿SEMI0N0TID2E. 
  1 
  03 
  

  

  hofen. 
  The 
  head 
  is 
  much 
  crushed 
  and 
  abradod, 
  but 
  a 
  few- 
  

   tubercles 
  remain 
  upon 
  the 
  cranial 
  roof 
  and 
  the 
  mouth 
  is 
  

   opened 
  to 
  display 
  the 
  characteristic 
  teeth. 
  The 
  anal 
  and 
  

   caudal 
  fins 
  are 
  especially 
  well 
  preserved, 
  the 
  latter 
  ex- 
  

   hibiting 
  its 
  gently 
  excavated 
  posterior 
  margin. 
  

  

  H'dberlein 
  Coll. 
  

  

  Lepidotus 
  lsevis, 
  Agassiz. 
  

  

  1837-44. 
  Lepidotus 
  kevis, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  i. 
  p. 
  254, 
  

  

  pi. 
  xxix. 
  c. 
  figs. 
  4-6. 
  

   (?) 
  1846. 
  Lepidotus 
  subundatus, 
  G. 
  von 
  Minister 
  (errore), 
  Beitr. 
  Petre- 
  

  

  fakt. 
  pt. 
  vii. 
  p. 
  37, 
  pi. 
  iii. 
  fig. 
  16. 
  [Detached 
  scales 
  and 
  teeth 
  ; 
  

  

  Palreontological 
  Museum, 
  Munich.] 
  

   1860. 
  Lepidotus 
  Icevis, 
  F. 
  J. 
  Pictet, 
  Descript. 
  Rept. 
  & 
  Poiss. 
  Foss. 
  Jura 
  

  

  Neuchfitelois, 
  p. 
  26, 
  pis. 
  vi 
  M 
  vii. 
  

   (?) 
  1875. 
  Lepidotus 
  lesvis, 
  K. 
  Fricke, 
  Paheontogr. 
  vol. 
  xxii. 
  p. 
  377, 
  

  

  pi. 
  xxi. 
  fig. 
  1. 
  

  

  Type. 
  Scale 
  ; 
  Museum 
  of 
  Solcure, 
  Switzerland. 
  

  

  An 
  imperfectly 
  known 
  species 
  of 
  moderate 
  size. 
  Teeth 
  short 
  and 
  

   stout 
  and 
  smooth, 
  tho 
  majority 
  oval 
  in 
  outline 
  and 
  with 
  a 
  well- 
  

   defined 
  median 
  coronal 
  tubercle 
  or 
  apex 
  ; 
  splenial 
  teeth 
  apparently 
  

   in 
  more 
  than 
  three 
  concentric 
  series. 
  Scales 
  as 
  in 
  L. 
  palliatus. 
  

  

  The 
  dentition 
  described 
  and 
  figured 
  as 
  mandibular 
  by 
  Fricke 
  

   seems 
  to 
  be 
  more 
  probably 
  ptcrygo-palatine 
  and 
  exhibits 
  four 
  

   longitudinal 
  series 
  of 
  teeth. 
  

  

  Form. 
  $- 
  Loc. 
  Kimmeridgian 
  : 
  Switzerland. 
  Upper 
  Corallian 
  and 
  

   Lower 
  Kimmeridgian: 
  Hanover 
  '. 
  

  

  P. 
  3519. 
  Limestone 
  with 
  fragmentary 
  scales, 
  probably 
  of 
  this 
  

   species 
  ; 
  Soleure. 
  EnnisJcillen 
  Coll. 
  

  

  P. 
  1108. 
  Four 
  scales, 
  labelled 
  by 
  Agassiz 
  ; 
  Solcure. 
  Egerton 
  Coll. 
  

  

  Lepidotus 
  palliatus, 
  Agassiz. 
  

  

  1837. 
  Lepidotus 
  palliatus, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  i. 
  p. 
  255, 
  

  

  pi. 
  xxix. 
  c. 
  figs. 
  2, 
  3. 
  

   1833-44. 
  Lepidotus 
  radiatus, 
  L. 
  Agassiz, 
  ibid. 
  pt. 
  i. 
  pp. 
  9, 
  256, 
  pt. 
  ii. 
  

  

  p. 
  287, 
  pi. 
  xxx. 
  figs. 
  2, 
  3. 
  [Scales 
  ; 
  Paris 
  Museum 
  of 
  Natural 
  

  

  History.] 
  

  

  1 
  Specifically 
  indeterminable 
  scales 
  from 
  the 
  Upper 
  Kimmeridgian 
  and 
  

   Portlandian 
  of 
  Boulogne 
  are 
  referred 
  to 
  this 
  spocies 
  by 
  II. 
  E. 
  Sauvage, 
  Catal. 
  

   Poiss. 
  Form. 
  Second. 
  Boulonnais 
  (Mem. 
  Soc. 
  Acad. 
  Boulogne-sur-Mer, 
  vol. 
  ii. 
  

   1867), 
  p. 
  16, 
  pi. 
  i. 
  figs. 
  3-16, 
  and 
  Bull. 
  Soc. 
  G£ol. 
  France, 
  [3] 
  vol. 
  viii. 
  (1880), 
  

   p. 
  525 
  ; 
  also 
  others 
  from 
  the 
  Neocomian 
  of 
  Wassy, 
  Hauto 
  Marno, 
  by 
  J. 
  

   Cornuel, 
  Bull. 
  Soc. 
  G6ol. 
  France, 
  [3 
  J 
  vol. 
  v. 
  (1877) 
  p. 
  607. 
  

  

  