﻿semionotid^;. 
  69 
  

  

  ment 
  of 
  the 
  characters 
  of 
  the 
  trunk 
  is 
  based 
  on 
  the 
  assumption 
  

   that 
  the 
  nearly 
  complete 
  specimens 
  of 
  fishes 
  from 
  the 
  Tyrol 
  and 
  

   Italy, 
  recorded 
  below 
  under 
  the 
  names 
  of 
  C. 
  ornatus 
  and 
  G. 
  latus, 
  

   are 
  generically 
  identical 
  with 
  the 
  unknown 
  fish 
  to 
  which 
  the 
  first- 
  

   discovered 
  example 
  of 
  dentition 
  belongs. 
  The 
  name 
  Colobodus 
  is 
  

   here 
  preferred 
  to 
  that 
  of 
  Asterodon, 
  because 
  it 
  seems 
  to 
  have 
  been 
  

   universally 
  employed 
  and 
  is 
  adopted 
  by 
  Professor 
  W. 
  Dames 
  in 
  his 
  

   memoir 
  giving 
  the 
  first 
  satisfactory 
  account 
  of 
  the 
  genus 
  (Palaeont. 
  

   Abhandl. 
  vol. 
  iv. 
  1888, 
  p. 
  153). 
  

  

  Colobodus 
  hogardi, 
  Agassiz. 
  

  

  1844. 
  Colobodus 
  hogardi, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  ii. 
  pp. 
  237 
  

   244. 
  

  

  1852. 
  Colobodus 
  hogardi, 
  P. 
  Gervais, 
  Zool. 
  et 
  Pal. 
  FranQ., 
  Poiss., 
  Explic. 
  

   Planches, 
  p. 
  13, 
  pi. 
  lxxvii. 
  fig. 
  15. 
  

  

  1853. 
  Colobodus 
  hogardi, 
  C. 
  G. 
  Giebel, 
  Zeitschr. 
  naturw. 
  Vereins 
  Halle, 
  

   vol. 
  ii. 
  p. 
  325. 
  

  

  1888. 
  Colobodus 
  hogardi, 
  W. 
  Dames, 
  Palaeont. 
  Abhandl. 
  vol. 
  iv. 
  p. 
  159. 
  

  

  Type, 
  Fragment 
  of 
  dentition 
  ; 
  Strassburg 
  Museum. 
  

  

  The 
  type 
  species, 
  known 
  only 
  by 
  portions 
  of 
  dentition. 
  Teeth 
  

   crowded 
  and 
  thus 
  of 
  irregular 
  polygonal 
  form, 
  with 
  feebly 
  striated 
  

   crown 
  and 
  an 
  apical 
  tubercle 
  not 
  surrounded 
  by 
  an 
  annular 
  indent. 
  

  

  The 
  type 
  specimen 
  was 
  obtained 
  from 
  the 
  Muschelkalk 
  of 
  Luneville. 
  

  

  Form. 
  Sf 
  Log. 
  Upper 
  Mnschelkalk 
  : 
  Luneville, 
  France. 
  Letten- 
  

   kohl 
  : 
  Wiirtemberg. 
  

  

  Not 
  represented 
  in 
  the 
  Collection. 
  

  

  Colobodus 
  frequens 
  9 
  Dames. 
  

  

  1837. 
  Gyrolepis 
  albertii, 
  H. 
  B. 
  Geinitz, 
  Beitr. 
  Kennt. 
  Thiiring. 
  Muschel- 
  

  

  kalkgeb. 
  p. 
  21, 
  pi. 
  iii. 
  figs. 
  3 
  a, 
  b 
  (errors). 
  

   1844. 
  Scales 
  described 
  and 
  figured 
  by 
  Meyer 
  and 
  Plieninger, 
  Beitr. 
  

  

  Palaeont. 
  Wiirttem 
  bergs, 
  p. 
  84, 
  pi. 
  xi. 
  tigs. 
  21-23, 
  25. 
  

  

  1851. 
  Scales 
  described 
  and 
  figured 
  by 
  H. 
  von 
  Meyer, 
  Paleeontogr. 
  vol. 
  i. 
  

   pp. 
  200, 
  248, 
  pi. 
  xxix. 
  figs. 
  2, 
  4, 
  5, 
  10, 
  11, 
  14-16, 
  18-21, 
  23, 
  27-29 
  

   (? 
  figs. 
  3, 
  6), 
  pi. 
  xxxi. 
  figs. 
  35-41. 
  

  

  1852. 
  Gyrolepis 
  albertii, 
  F. 
  A. 
  Quenstedt 
  (errore), 
  Handb. 
  Petrefakt. 
  

   p. 
  206, 
  pi. 
  xvii. 
  tigs. 
  6, 
  7, 
  12 
  (? 
  fig. 
  8). 
  

  

  1861. 
  Tholodus 
  x 
  minutus, 
  E. 
  E. 
  Schmid, 
  Nova 
  Acta 
  Acad. 
  Caes. 
  Leop.- 
  

  

  1 
  The 
  genus 
  Tholodus 
  was 
  originally 
  founded 
  by 
  H. 
  von 
  Meyer 
  on 
  a 
  fragment 
  

   of 
  dentition 
  from 
  the 
  Muschelkalk 
  of 
  Upper 
  Silesia, 
  which 
  may 
  be 
  reptilian. 
  

   The 
  type 
  species 
  is 
  T. 
  schmidi 
  (H. 
  von 
  Meyer, 
  in 
  Schmid 
  & 
  Schleiden, 
  Geogn. 
  

   Verhalt. 
  Saalthals 
  Jena 
  (1816), 
  p. 
  37.. 
  and 
  Palaeontogr. 
  vol. 
  i. 
  (1849), 
  p. 
  199, 
  

   pi. 
  xxxi. 
  figs. 
  27, 
  28). 
  

  

  