﻿PKOE. 
  H. 
  Gr. 
  SEELEY 
  ON 
  THE 
  PELVIS 
  OF 
  OENITHOPSIS. 
  397 
  

  

  be 
  did 
  not 
  follow 
  Mr. 
  Hulkc 
  in 
  referring 
  the 
  three 
  Saurischians 
  to 
  

   Ornithopsis, 
  and 
  while 
  he 
  offered 
  a 
  restoration 
  of 
  the 
  pelvis 
  of 
  

   Cetiosaurus 
  oxoniensis 
  to 
  illustrate 
  its 
  relation 
  to 
  the 
  Oxford-clay 
  

   and 
  Wealden 
  types, 
  the 
  grounds 
  had 
  been 
  stated 
  on 
  which 
  the 
  

   Oxford 
  and 
  Peterborough 
  animals 
  might 
  be 
  referred 
  to 
  another 
  

   genus, 
  when 
  the 
  evidence 
  was 
  more 
  fully 
  set 
  out. 
  The 
  affinity 
  of 
  

   Cetiosaurus 
  oxoniensis 
  to 
  Morosaurus 
  cannot 
  be 
  determined, 
  because 
  

   the 
  distal 
  end 
  of 
  the 
  ischium 
  is 
  not 
  preserved. 
  Prof. 
  Seeley 
  regarded 
  

   nomenclature 
  as 
  a 
  matter 
  of 
  scientific 
  convenience, 
  and 
  he 
  was 
  not 
  

   prepared 
  to 
  give 
  up 
  names 
  associated 
  with 
  the 
  history 
  of 
  research 
  

   in 
  favour 
  of 
  an 
  obscure 
  name 
  that 
  was 
  casually 
  exhumed 
  and 
  intro- 
  

   duced 
  doubt 
  in 
  our 
  interpretations. 
  

  

  