﻿356 
  Forty-seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  In 
  considering 
  the 
  fossil 
  a 
  coccostean 
  fish, 
  of 
  which 
  there 
  seems 
  

   to 
  he 
  no 
  reasonable 
  doubt, 
  one 
  of 
  the 
  most 
  striking 
  and 
  peculiar 
  

   characters 
  is 
  the 
  expansion 
  of 
  the 
  shield 
  at 
  the 
  left, 
  where 
  it 
  has 
  

   unfortunately 
  been 
  impossible 
  to 
  make 
  out 
  the 
  structure 
  in 
  full 
  

   detail; 
  but 
  it 
  is 
  here, 
  presumably, 
  that 
  some 
  of 
  the 
  infra- 
  

   orbital 
  plates 
  on 
  one 
  side 
  have 
  been 
  turned 
  upward. 
  In 
  the 
  

   lithographic 
  figure 
  here 
  given 
  of 
  this 
  specimen 
  (Plate 
  I, 
  fig. 
  1), 
  

   no 
  attempt 
  has 
  been 
  made 
  to 
  distinguish 
  between 
  the 
  sutures 
  

   and 
  the 
  sensory 
  canals, 
  the 
  latter 
  appearing 
  the 
  more 
  con- 
  

   spicuously. 
  The 
  object 
  of 
  the 
  figure 
  is 
  to 
  give 
  the 
  general 
  

   aspect 
  of 
  the 
  specimen. 
  The 
  accompanying 
  diagram, 
  how- 
  

  

  ever, 
  will 
  serve 
  to 
  bring 
  out 
  these 
  features 
  as 
  far 
  as 
  it 
  has 
  

   been 
  safely 
  possible 
  to 
  go, 
  the 
  actual 
  sutures 
  being 
  repre- 
  

  

  