﻿L86 
  PAL 
  EONTOLOGI 
  OF 
  tLLLNO] 
  

  

  from 
  the 
  obtuse 
  inner 
  angle; 
  posterolateral 
  border 
  also 
  obliquely 
  

   and 
  rapidly 
  converging 
  from 
  the 
  subacute 
  posterior 
  extremity 
  towards 
  

   inrolled 
  margin, 
  basal 
  portion 
  channeled 
  and 
  posteriorly 
  expandi 
  

  

  ■ 
  ond 
  the 
  limits 
  of 
  the 
  rounded, 
  inbeveled 
  coronal 
  fold; 
  inner 
  mar- 
  

   gin 
  strongly 
  arched 
  round 
  the 
  base 
  of 
  the 
  posterior 
  prominen 
  

   Bharply 
  contracted 
  in 
  front, 
  and 
  broadly 
  arched 
  round 
  tl 
  :ior 
  

  

  lobe 
  to 
  the 
  antero-lateral 
  border. 
  Coronal 
  region 
  divided 
  into 
  nearly 
  

   equal 
  parts 
  by 
  the 
  relatively 
  narrow, 
  deeply 
  excaval 
  an 
  de- 
  

  

  rior 
  promin. 
  daily 
  arched 
  tri 
  ato 
  the 
  

  

  l/road 
  rounded 
  crest, 
  which 
  is 
  interrupted 
  by 
  a 
  few 
  relatively 
  Btron 
  

  

  e 
  furrows 
  and 
  corresponding 
  rid 
  

   outer 
  half 
  or 
  more 
  of 
  its 
  extent: 
  anterior 
  ridge 
  also 
  quite 
  prominent 
  

   with 
  regular 
  transverse 
  convexity, 
  and 
  similarly 
  marked 
  by 
  trai 
  

   verse 
  corrugations. 
  Surface 
  generally 
  minutely 
  punctate. 
  A 
  specimen 
  

   below 
  medium 
  size 
  measures, 
  in 
  greatest 
  diameter 
  across 
  the 
  ini 
  

   margin, 
  13 
  mm.; 
  length 
  along 
  antero-lateral 
  border, 
  3 
  mm., 
  more 
  

   or 
  less. 
  

  

  Other 
  associate 
  forms 
  of 
  the 
  species 
  remain 
  unknown: 
  tin 
  small 
  

   size 
  of 
  tl 
  gnized 
  terminal 
  teeth 
  indicate 
  for 
  the 
  unknown 
  for 
  

  

  a 
  diminutive 
  size 
  and 
  delicacy 
  that, 
  in 
  a 
  m< 
  • 
  \plains 
  their 
  

  

  absence 
  in 
  the 
  collections, 
  which, 
  indie. 
  1. 
  contain 
  comparal 
  vely 
  I* 
  

   individuals 
  of 
  either 
  of 
  the 
  representative 
  forms 
  described 
  above. 
  The 
  

   prominent 
  trac 
  - 
  ornamenting 
  the 
  coronal 
  rid| 
  

  

  e 
  to 
  distinguish 
  the 
  sp 
  s 
  of 
  th< 
  nl 
  

  

  formations 
  and 
  subsequent 
  di 
  -. 
  In 
  the 
  

  

  latti 
  ot, 
  also, 
  it 
  presents 
  qui 
  Larked 
  a 
  

  

  European 
  species, 
  originally 
  distinguished 
  under 
  th< 
  hu 
  

  

  Jonerii 
  and 
  Pacilodus 
  obliqtu 
  

  

  tgical 
  position 
  and 
  locality: 
  > 
  

  

  1 
  M. 
  St. 
  .1. 
  

  

  PL 
  vin. 
  

  

  'I'll. 
  I 
  

   dibular 
  terminal 
  tooth 
  of 
  /■ 
  • 
  •-- 
  which 
  

  

  markedly 
  distincl 
  from 
  all 
  others 
  known 
  t 
  

   obtained, 
  probably, 
  from 
  the 
  limi 
  

  

  which 
  the 
  i 
  

  

  :i 
  aniqu< 
  kind. 
  ith 
  

  

  belongs 
  t<» 
  the 
  left 
  ramus, 
  and. 
  

   I 
  by 
  the 
  following 
  chat 
  

  

  