﻿140 
  J. 
  W. 
  HTJLZE 
  OKT 
  SOME 
  IGTTANODON-EEMAINS. 
  

  

  probably 
  thrown 
  down 
  the 
  cliff 
  with 
  the 
  rubbish 
  ; 
  and 
  later, 
  when 
  

   missed, 
  it 
  could 
  not 
  be 
  found. 
  The 
  proximal 
  phalanx 
  is 
  remarkably 
  

   stout. 
  Its 
  extreme 
  length 
  is 
  13 
  centim. 
  (5^ 
  in.). 
  The 
  horizontal 
  

   diameter 
  of 
  its 
  proximal 
  end 
  is 
  14*1 
  centim. 
  (5|- 
  in.), 
  and 
  the 
  

   vertical 
  diameter 
  10-1 
  centim. 
  (4 
  in.). 
  The 
  breadth 
  across 
  the 
  

   condyles 
  is 
  12*6 
  centim. 
  (5 
  in.), 
  and 
  the 
  vertical 
  diameter 
  at 
  the 
  

   intercondylar 
  groove 
  7*5 
  centim. 
  (3 
  in.). 
  The 
  vertical 
  diameter 
  at 
  

   the 
  middle 
  of 
  the 
  phalanx 
  is 
  7*3 
  centim. 
  (2^ 
  in.), 
  the 
  horizontal 
  

   diameter 
  10-5 
  centim. 
  (4 
  J 
  in.). 
  From 
  these 
  dimensions 
  it 
  will 
  be 
  

   seen 
  that 
  the 
  figure 
  of 
  this 
  phalanx 
  is 
  short, 
  stout, 
  somewhat 
  

   flattened, 
  and 
  slightly 
  contracted 
  at 
  the 
  middle. 
  The 
  third 
  phalanx 
  

   is 
  very 
  short, 
  only 
  4-2 
  centim. 
  (If 
  in.) 
  long, 
  measured 
  along 
  the 
  

   upper 
  surface. 
  Its 
  shape 
  is 
  rudely 
  triangular. 
  The 
  vertical 
  dia- 
  

   meter 
  of 
  the 
  proximal 
  articular 
  surface 
  is 
  8*3 
  centim. 
  (3| 
  in.), 
  

   the 
  horizontal 
  12*3 
  centim. 
  (44 
  in.). 
  This 
  surface 
  is 
  concave 
  ver- 
  

   tically 
  and 
  sinuous 
  transversely. 
  The 
  dorsal 
  surface 
  in 
  this 
  as 
  in 
  all 
  

   the 
  other 
  short 
  phalanges 
  is 
  prolonged 
  backwards 
  in 
  a 
  lip-like 
  form, 
  

   adapted 
  to 
  the 
  pulley-like 
  articular 
  surface 
  of 
  the 
  phalanx 
  behind 
  it 
  ; 
  

   and 
  the 
  distal 
  articular 
  surface, 
  which 
  has 
  the 
  form 
  of 
  a 
  wide 
  

   shallow 
  pulley, 
  is, 
  as 
  in 
  the 
  other 
  short 
  phalanges, 
  prolonged 
  on 
  the 
  

   plantar 
  aspect 
  nearly 
  to 
  the 
  proximal 
  surface 
  of 
  the 
  bone. 
  The 
  ter- 
  

   minal 
  or 
  ungual 
  phalanx 
  of 
  this 
  toe 
  may 
  be 
  distinguished 
  from 
  

   that 
  of 
  the 
  other 
  toes 
  by 
  its 
  symmetry. 
  Its 
  extreme 
  length 
  is 
  

   17'6 
  centim. 
  (6^- 
  in.). 
  The 
  horizontal 
  diameter 
  of 
  the 
  proximal 
  

   end 
  is 
  9 
  centim. 
  (3| 
  in.), 
  and 
  the 
  vertical 
  diameter 
  about 
  7 
  centim. 
  

   (2-J 
  in.). 
  The 
  articular 
  surface 
  is 
  sinuous 
  horizontally 
  and 
  concave 
  

   vertically. 
  The 
  transverse 
  or 
  horizontal 
  diameter 
  at 
  the 
  base 
  of 
  

   the 
  nail-groove 
  is 
  11*2 
  centim. 
  (4|- 
  in.), 
  and 
  at 
  the 
  distance 
  of 
  2 
  

   centim. 
  (-| 
  in.) 
  from 
  its 
  distal 
  end 
  6 
  centim. 
  (2-J 
  in.). 
  

  

  The 
  third 
  or 
  outer 
  toe 
  has 
  five 
  phalanges. 
  The 
  proximal 
  of 
  these 
  

   resembles 
  that 
  of 
  the 
  middle 
  toe 
  more 
  than 
  that 
  of 
  the 
  outer 
  toe 
  ; 
  

   but 
  it 
  is 
  shorter 
  and, 
  relatively 
  to 
  its 
  length, 
  it 
  is 
  stouter 
  than 
  the 
  

   former. 
  The 
  horizontal 
  diameter 
  of 
  its 
  proximal 
  end 
  is 
  12-2 
  

   centim. 
  (44 
  in.), 
  the 
  vertical 
  is 
  10 
  centim. 
  (3^- 
  in.). 
  The 
  same 
  

   diameters 
  of 
  the 
  distal 
  end 
  are 
  10*2 
  centim. 
  (4^ 
  in.), 
  and 
  7*6 
  

   centim. 
  (3 
  in.). 
  The 
  breadth 
  of 
  this 
  phalanx 
  at 
  its 
  middle 
  is 
  8*6 
  

   centim. 
  (3J- 
  in.). 
  The 
  lateral 
  mesial 
  surface 
  is 
  flattened. 
  The 
  

   three 
  succeeding 
  phalanges 
  resemble 
  one 
  another 
  so 
  closely 
  as 
  not 
  to 
  

   require 
  separate 
  descriptions. 
  They 
  resemble 
  those 
  phalanges 
  which 
  

   in 
  the 
  other 
  toes 
  are 
  intermediate 
  between 
  the 
  proximal 
  and 
  the 
  

   ungual, 
  and 
  differ 
  from 
  these 
  chiefly 
  in 
  their 
  proportions, 
  as 
  may 
  be 
  

   seen 
  by 
  the 
  following 
  measurements 
  : 
  — 
  

  

  2nd 
  phal. 
  3rd 
  phal. 
  4th. 
  phal. 
  

  

  centim. 
  centim. 
  centim. 
  

  

  Length 
  along 
  dorsal 
  

  

  surface 
  4 
  (If 
  in.) 
  3-5 
  (1§ 
  in.) 
  2-3 
  (^ 
  in.) 
  

  

  Horizontal 
  transverse 
  

  

  diameter 
  9-7 
  (3± 
  in.) 
  9-3 
  (3| 
  in.) 
  8-4 
  (3£ 
  in.) 
  

  

  Vertical 
  transverse 
  

  

  diameter 
  8-4 
  (3± 
  in.) 
  6-1 
  (2f 
  in.) 
  6-2 
  (2fi 
  in.) 
  

  

  All 
  the 
  three 
  phalanges 
  are 
  therefore 
  very 
  short 
  relatively 
  to 
  their 
  

   horizontal 
  diameter 
  or 
  breadth. 
  In 
  all, 
  the 
  dorsal 
  surface 
  sends 
  

  

  