﻿OF 
  FIVE 
  GENERA 
  OF 
  ME80Z0IC 
  REPTILES. 
  

  

  53 
  

  

  species 
  This 
  type 
  of 
  ischium 
  is 
  longer 
  than 
  that 
  of 
  the 
  typical 
  species 
  

   of 
  Plesiosaurus, 
  and 
  is 
  quite 
  un 
  distinguishable 
  from 
  that 
  of 
  Pliosaurus, 
  

   of 
  which 
  there 
  is 
  an 
  enormous 
  specimen 
  in 
  the 
  collection 
  of 
  Mr. 
  M. 
  

   Fisher 
  of 
  Ely. 
  

  

  In 
  the 
  limbs, 
  the 
  humerus 
  (fig. 
  9) 
  and 
  femur 
  respectively 
  articu- 
  

  

  Kg. 
  7. 
  

  

  Pubes 
  of 
  

  

  philarchus. 
  (Eeduced.) 
  a, 
  acetabular 
  facet. 
  

   Fig. 
  8. 
  

  

  Ischia 
  of 
  Peloneustes. 
  The 
  specimen 
  on 
  the 
  right 
  side 
  is 
  from 
  the 
  Kimeridge 
  

   Clay, 
  and 
  that 
  on 
  the 
  left 
  from 
  the 
  Bedford 
  specimen. 
  (Reduced*.) 
  

  

  late 
  with 
  only 
  two 
  bones, 
  which 
  still 
  retain 
  evidence 
  of 
  their 
  

   original 
  character 
  as 
  " 
  long 
  bones," 
  and 
  are 
  separated 
  by 
  a 
  distinct 
  

   interval. 
  

  

  Having 
  now 
  reached 
  the 
  end 
  of 
  the 
  description 
  of 
  this 
  interesting 
  

  

  * 
  The 
  artist 
  has 
  made 
  an 
  error 
  in 
  this 
  figure, 
  since 
  the 
  specimen 
  on 
  the 
  

   right 
  should 
  have 
  been 
  restored 
  simply 
  from 
  that 
  on 
  the 
  left, 
  which 
  merely 
  

   required 
  the 
  reproduction 
  of 
  the 
  antero-internal 
  angle. 
  

  

  