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  RANLDiE. 
  

  

  confined 
  to 
  Italy, 
  the 
  origin 
  of 
  these 
  colonies 
  is 
  more 
  

   obscure 
  than 
  ever. 
  

  

  4. 
  Var. 
  chinensis, 
  Osb. 
  (marmorata, 
  Hallow. 
  ; 
  nigro- 
  

   maculata, 
  Hallow. 
  ; 
  reinhardti, 
  Ptrs. 
  ; 
  porosa, 
  Cope 
  ; 
  

   japonica, 
  Blgr.). 
  

  

  An 
  Eastern 
  form, 
  ranging 
  from 
  Corea 
  and 
  Japan 
  to 
  

   Southern 
  China 
  and 
  Siam 
  ; 
  the 
  exact 
  western 
  limits 
  

   of 
  its 
  habitat 
  have 
  still 
  to 
  be 
  ascertained, 
  and 
  it 
  would 
  

   be 
  particularly 
  desirable 
  to 
  know 
  whether 
  it 
  anywhere 
  

   comes 
  into 
  contact 
  with, 
  or 
  overlaps 
  the 
  area 
  of 
  the 
  

   ridibunda 
  form. 
  

  

  The 
  principal 
  characters 
  which 
  have 
  proved 
  of 
  ser- 
  

   vice 
  in 
  diagnosing 
  these 
  forms 
  are 
  the 
  following 
  : 
  

  

  1. 
  The 
  development 
  of 
  the 
  inner 
  metatarsal 
  tubercle, 
  

   whether 
  large 
  or 
  small, 
  blunt 
  or 
  compressed. 
  The 
  

   length 
  is 
  taken 
  along 
  the 
  attachment 
  of 
  the 
  tubercle 
  

   to 
  the 
  foot; 
  the 
  length 
  of 
  the 
  first 
  toe, 
  given 
  for 
  

   comparison, 
  is 
  taken 
  from 
  the 
  tubercle; 
  and 
  the 
  length 
  

   of 
  the 
  latter 
  is 
  also 
  compared 
  to 
  the 
  length 
  of 
  the 
  

   cms 
  or 
  tibia 
  measured 
  in 
  the 
  flesh. 
  

  

  2. 
  The 
  comparative 
  length 
  of 
  the 
  tibia 
  to 
  the 
  thigh. 
  

   This 
  is 
  shown 
  by 
  pressing 
  the 
  two 
  close 
  together 
  and 
  

   maintaining 
  the 
  tibia 
  at 
  right 
  angle 
  to 
  the 
  axis 
  of 
  the 
  

   body 
  ; 
  the 
  tibial 
  extremity, 
  or 
  heel, 
  is 
  then 
  found 
  to 
  

   overlap, 
  to 
  meet, 
  or 
  to 
  fail 
  to 
  meet 
  its 
  fellow 
  placed 
  

   in 
  the 
  same 
  position. 
  Only 
  in 
  Form 
  1 
  do 
  they 
  over- 
  

   lap, 
  and 
  this 
  character 
  alone 
  differentiates 
  it 
  from 
  the 
  

   three 
  others. 
  

  

  3. 
  The 
  presence 
  or 
  absence 
  of 
  short 
  glandular 
  folds 
  

   along 
  the 
  back, 
  in 
  addition 
  to 
  the 
  dorso-lateral. 
  The 
  

   presence 
  of 
  these 
  folds 
  differentiates 
  Form 
  4 
  from 
  the 
  

   three 
  others. 
  

  

  4. 
  The 
  presence 
  or 
  absence 
  of 
  bright 
  yellow 
  

   pigment 
  on 
  the 
  lumbar 
  and 
  post-femoral 
  regions. 
  

   This 
  pigment 
  is 
  constantly 
  absent 
  in 
  Form 
  1, 
  and 
  

   very 
  seldom 
  in 
  Form 
  2. 
  The 
  character 
  unfortunately 
  

   cannot 
  be 
  made 
  use 
  of 
  with 
  spirit 
  specimens. 
  

  

  By 
  means 
  of 
  the 
  first 
  three 
  characters 
  we 
  are 
  able 
  

  

  