﻿semionotid^;. 
  127 
  

  

  Sphcerodus 
  (?) 
  cylindricoides, 
  F. 
  A. 
  Boemer, 
  Verstein. 
  Norddeutsch. 
  

  

  Oolithen-gebirges, 
  Nachtr. 
  (1839), 
  p. 
  55. 
  — 
  Pnrbeckian 
  ; 
  

  

  Deister. 
  

   Splicer 
  odus 
  glohulosus, 
  Pictet 
  & 
  Campiche, 
  Foss. 
  Terrain 
  Cret. 
  St. 
  

  

  Croix, 
  pt. 
  i. 
  (1860), 
  p. 
  73, 
  pi. 
  ix. 
  fig. 
  7.— 
  Middle 
  Gault 
  ; 
  

  

  St. 
  Croix. 
  [Tooth 
  ; 
  Campiche 
  Coll.] 
  

   Sphcerodus 
  hybridus, 
  subannidaris, 
  submammillaris, 
  subradiatus, 
  

  

  and 
  tetragonus, 
  G. 
  von 
  Mlinster, 
  Beitr. 
  Petrefakt. 
  pt. 
  vii. 
  

  

  (1846), 
  p. 
  39. 
  — 
  Corallian 
  ; 
  Lindnerberg, 
  Hanover. 
  

   SpTicerodus 
  irregidaris, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  ii. 
  

  

  (1844), 
  p. 
  213, 
  pi. 
  lxxiii. 
  figs. 
  74-81 
  ; 
  G. 
  von 
  Minister, 
  

  

  Beitr. 
  Petrefakt. 
  pt. 
  vii. 
  (1846), 
  p. 
  39; 
  "W. 
  Dunker, 
  

  

  Monogr. 
  Norddeutsch. 
  Wealdenbild. 
  (1846), 
  p. 
  66, 
  pi. 
  xv. 
  

  

  fig. 
  21. 
  — 
  U. 
  Jurassic 
  : 
  Oelingerberg, 
  near 
  Osnabriick, 
  

  

  and 
  Lindnerberg, 
  Hanover. 
  Wealden 
  ; 
  Schaumburg 
  and 
  

  

  Ravensberg. 
  1 
  [Palseontological 
  Museum, 
  Munich.] 
  

   Sphcerodus 
  semiglobosus, 
  "W. 
  Dunker, 
  Monogr. 
  JSTorddeutsch. 
  

  

  Wealdenbild. 
  (1846), 
  p. 
  66, 
  pi. 
  xv. 
  fig. 
  17.— 
  Wealden 
  ; 
  

  

  North 
  Germany. 
  

  

  An 
  indeterminable 
  detached 
  tooth, 
  not 
  of 
  Lepidotus, 
  from 
  the 
  

   Cenomanian 
  (Planerkalk) 
  of 
  Plauen, 
  Saxony, 
  is 
  named 
  Lepidotus 
  

   plauensis? 
  by 
  C. 
  E. 
  Fischer, 
  Allg. 
  deutsch. 
  Naturh. 
  Zeit. 
  n. 
  s. 
  

   vol. 
  ii. 
  (1856), 
  p. 
  137, 
  fig. 
  1. 
  

  

  The 
  undefined 
  name 
  Lepidotus 
  cottce 
  is 
  given 
  by 
  Agassiz 
  (Poiss. 
  

   Foss. 
  vol. 
  ii. 
  pt. 
  i. 
  1844, 
  p. 
  306) 
  to 
  unknown 
  fossils 
  from 
  the 
  " 
  Chalk 
  " 
  

   of 
  Hohenstein, 
  near 
  Schandau, 
  Saxony. 
  A 
  plaster 
  cast 
  of 
  a 
  portion 
  

   of 
  Sphserodont 
  dentition 
  in 
  the 
  Enniskillen 
  Collection 
  (P. 
  7422) 
  

   is 
  thus 
  named, 
  without 
  reference 
  to 
  locality. 
  

  

  Gyrolepidotus 
  schmidti 
  (J. 
  Y. 
  Rohon, 
  Mem. 
  Acad. 
  Imp. 
  Sci. 
  St. 
  

   Petersbourg, 
  [7] 
  vol. 
  xxxvi. 
  no. 
  13, 
  1889, 
  p. 
  8, 
  pi. 
  i. 
  figs. 
  4, 
  10, 
  

   13, 
  14) 
  from 
  supposed 
  Permian 
  in 
  the 
  province 
  of 
  Jenissei, 
  Siberia, 
  

   is 
  described 
  as 
  related 
  to 
  Lepidotus 
  ; 
  but 
  the 
  type 
  specimen 
  in 
  the 
  

   Academy 
  of 
  Sciences, 
  St. 
  Petersburg, 
  seems 
  to 
  the 
  present 
  writer 
  to 
  

   be 
  most 
  probably 
  an 
  imperfect 
  example 
  of 
  a 
  Palseoniscid. 
  The 
  

   same 
  remark 
  applies 
  to 
  Lepidopterus 
  crassus 
  (H. 
  Pohlig, 
  Festschr. 
  

   70ten 
  Geburtst. 
  E. 
  Leuckarts, 
  1892, 
  p. 
  63, 
  pi. 
  vii. 
  fig. 
  3) 
  from 
  the 
  

   Lower 
  Permian 
  of 
  Thuringia, 
  described 
  as 
  a 
  link 
  between 
  Ambly- 
  

   pterus 
  and 
  the 
  Semionotidae. 
  

  

  1 
  The 
  Tertiary 
  teeth 
  noticed 
  by 
  Agassiz 
  also 
  under 
  this 
  name 
  pertain 
  to 
  

   teleostean 
  fishes. 
  

  

  