﻿CHONDROSTEID^. 
  

  

  39 
  

  

  "Viewed 
  from 
  the 
  front 
  and 
  below, 
  it 
  appears 
  as 
  if 
  the 
  

   palatine 
  bone 
  were 
  fused 
  with 
  the 
  maxilla, 
  as 
  sometimes 
  

   occurs 
  in 
  Acijpenser. 
  Ennishillen 
  Coll. 
  

  

  43304. 
  Ceratohyal, 
  shown 
  of 
  one-third 
  the 
  natural 
  size 
  in 
  fig. 
  13, 
  

   described 
  and 
  figured 
  loc. 
  cit. 
  pp. 
  33, 
  35, 
  fig. 
  3. 
  

  

  Purchased, 
  1871. 
  

  

  P. 
  2262 
  c. 
  Finer 
  example 
  of 
  the 
  same 
  bone, 
  labelled 
  " 
  Gyrosteus 
  

   mirabilis, 
  Ag." 
  by 
  Agassiz, 
  shown 
  of 
  one-third 
  the 
  natural 
  

   size 
  in 
  fig. 
  12, 
  described 
  and 
  figured, 
  ibid. 
  

  

  Egerton 
  Coll. 
  

  

  Pig. 
  12. 
  

  

  Pig. 
  13. 
  

  

  Ceratohyals 
  of 
  Gyrosteus 
  mirabilis, 
  one-third 
  nat. 
  size. 
  

   [Nos. 
  P. 
  2262 
  c, 
  43304.] 
  

  

  