﻿new 
  ^Fammalx 
  fi'om 
  the 
  Malay 
  Peninsula. 
  227 
  

  

  Cranial 
  measurements 
  : 
  greatest 
  length 
  56*1 
  ; 
  condylo- 
  

   basilar 
  length 
  48'2 
  ; 
  interorbital 
  breadth 
  19'9 
  ; 
  zygomatic 
  

   breadth 
  32"8 
  ; 
  cranial 
  breadth 
  252 
  ; 
  median 
  length 
  of 
  nasals 
  

   18" 
  1 
  ; 
  diastema 
  126 
  ; 
  upper 
  molar 
  series, 
  including 
  ^5??/^, 
  

   111. 
  

  

  Specimens 
  examined. 
  — 
  Forty, 
  all 
  from 
  the 
  type-localit^^ 
  

   Remarks. 
  — 
  Amongst 
  the 
  series 
  obtained 
  are 
  a 
  large 
  pro- 
  

   portion 
  which 
  differ 
  from 
  the 
  specimen 
  described 
  above 
  in 
  

   having 
  the 
  rufous 
  hazel 
  of 
  the 
  shoulders 
  and 
  flanks 
  invading 
  

   the 
  dorsal 
  area 
  and 
  coalescing 
  on 
  the 
  nape. 
  It 
  is 
  possible 
  

   that 
  this 
  indicates 
  that 
  the 
  form 
  possesses 
  two 
  seasonal 
  

   pelages, 
  as 
  is 
  apparently 
  the 
  case 
  in 
  Sc. 
  caniceps, 
  but 
  is 
  

   almost' 
  certainly 
  not 
  so 
  in 
  Sc. 
  concolor 
  and 
  allied 
  races. 
  

   Since 
  the 
  whole 
  series 
  before 
  us 
  was 
  obtained 
  within 
  a 
  

   period 
  of 
  one 
  month 
  it 
  is 
  at 
  present 
  impossible 
  to 
  make 
  any 
  

   detinite 
  pronouncement 
  on 
  the 
  point. 
  

  

  Ratufa 
  melanopepla 
  decolorata, 
  subsp. 
  n. 
  

  

  Type. 
  — 
  Adult 
  female 
  (skin 
  and 
  skull), 
  No. 
  251/13. 
  

   Federated 
  Malay 
  States 
  Museum, 
  collected 
  on 
  Koh 
  Samui, 
  

   N.E. 
  Malay 
  Peninsula, 
  15th 
  May, 
  1913, 
  by 
  H.C.Robinson 
  

   and 
  F. 
  Seimund. 
  Original 
  no. 
  5350. 
  

  

  Characters. 
  — 
  Nearer 
  in 
  colour 
  to 
  R. 
  m. 
  melanopepla 
  from 
  

   the 
  mainland 
  than 
  to 
  the 
  other 
  island 
  races, 
  but 
  very 
  much 
  

   smaller. 
  Skull 
  more 
  slenderly 
  built. 
  

  

  Colour. 
  — 
  Apparently 
  as 
  in 
  R. 
  melanopepla 
  melanopepla. 
  

  

  Skull 
  and 
  teeth. 
  — 
  Interpterygoid 
  space 
  relatively 
  wider 
  

   than 
  in 
  the 
  typical 
  form 
  and 
  zygomatic 
  much 
  lighter. 
  

  

  Measurements. 
  — 
  Collectors' 
  external 
  measurements 
  (taken 
  

   in 
  the 
  flesh) 
  : 
  — 
  

  

  Head 
  and 
  body 
  328 
  (3i2 
  *) 
  ; 
  tail 
  417 
  (455) 
  ; 
  hind 
  foot 
  

   68 
  (75). 
  

  

  Cranial 
  measurements 
  : 
  greatest 
  length 
  68*7 
  (72'8) 
  ; 
  con- 
  

   dylo-basilar 
  length 
  57' 
  1 
  (Gr2) 
  ; 
  interorbital 
  breadth 
  26'2 
  

   (29*3); 
  zygomatic 
  breadth 
  42*6 
  (■4'58); 
  greatest 
  length 
  of 
  

   nasals 
  23'0 
  (24*8) 
  ; 
  diastema 
  14'1 
  (16"0) 
  ; 
  upper 
  molar 
  series 
  

   134 
  (141). 
  

  

  Specimens 
  exaniined. 
  — 
  Thirteen, 
  twelve 
  from 
  the 
  type- 
  

   locality 
  and 
  one 
  from 
  Koh 
  Pen 
  nan. 
  

  

  Remarks. 
  — 
  With 
  one 
  exception 
  all 
  the 
  specimens 
  are 
  in 
  

   highly 
  bleached 
  pelage, 
  though 
  some 
  are 
  assuming 
  the 
  new 
  

   coat 
  on 
  the 
  anterior 
  half 
  of 
  the 
  body. 
  It 
  is 
  therefore 
  difli- 
  

   cult 
  to 
  state 
  whether 
  any 
  colour-differences 
  exist 
  between 
  

   this 
  form 
  and 
  that 
  of 
  the 
  mainland. 
  

  

  * 
  l\rpasurenients 
  in 
  parentheses 
  are 
  those 
  of 
  an 
  adnlt 
  female 
  from 
  

   Kao 
  Nawnji', 
  1100 
  ft., 
  on 
  tlie 
  adjacent 
  niainhnid 
  ; 
  Federated 
  Malay 
  States 
  

   Mnseum, 
  No. 
  250/13. 
  

  

  