﻿444 
  On 
  a 
  new 
  Bandicoot. 
  

  

  Skull 
  : 
  condylo-basal 
  length 
  83 
  ; 
  zygomatic 
  breadth 
  305 
  ; 
  

   length 
  of 
  nasals 
  36*5 
  ; 
  intertemporal 
  breadth 
  14"8 
  ; 
  height 
  

   from 
  condyle 
  to 
  occipital 
  protuberances 
  23 
  ; 
  palatal 
  length 
  

   51'5 
  ; 
  combined 
  length 
  of 
  three 
  anterior 
  molariform 
  teeth 
  12'8. 
  

  

  Range. 
  New 
  Guinea 
  and 
  D'Entrecasteaux 
  Islands. 
  Type 
  

   from 
  Mimika 
  River, 
  S.W. 
  Dutch 
  New 
  Guinea. 
  

  

  Tijpe. 
  Young 
  adult 
  male. 
  B 
  M. 
  no. 
  11. 
  11. 
  11. 
  97. 
  

   Original 
  number 
  3045. 
  Collected 
  30ili 
  August, 
  1910, 
  by 
  

   G. 
  C. 
  Shortridge. 
  Presented 
  by 
  the 
  B.O.U. 
  Expedition 
  to 
  

   New 
  Guinea. 
  

  

  After 
  renewed 
  consideration 
  I 
  have 
  come 
  to 
  the 
  conclusion 
  

   that 
  it 
  is 
  impossible 
  to 
  consider 
  the 
  very 
  large 
  Echymijjera, 
  of 
  

   which 
  skull-measurements 
  have 
  been 
  occasionally 
  published 
  *, 
  

   as 
  the 
  same 
  species 
  as 
  E. 
  doreyana. 
  I 
  have 
  bfore 
  me 
  three 
  

   of 
  the 
  large 
  form 
  and 
  twelve 
  of 
  the 
  smaller, 
  and 
  among 
  tiiese 
  

   latter 
  there 
  are 
  individuals 
  of 
  both 
  sexes 
  and 
  all 
  ages 
  ; 
  and 
  

   the 
  only 
  explanation 
  seems 
  to 
  be 
  that 
  there 
  are 
  really 
  two 
  

   species 
  occurring 
  in 
  the 
  same 
  ai'ea, 
  and 
  as 
  distinct 
  from 
  each 
  

   other 
  by 
  size 
  as 
  are 
  the 
  stoat 
  and 
  the 
  weasel. 
  

  

  The 
  gap 
  in 
  size 
  of 
  skull 
  between 
  the 
  two 
  is 
  very 
  marked, 
  

   both 
  in 
  actual 
  length 
  (73 
  mm. 
  in 
  the 
  largest 
  doreyana^ 
  83 
  in 
  

   the 
  smallest 
  gargantua) 
  and 
  in 
  general 
  bulk. 
  

  

  With 
  regard 
  to 
  nomenclature, 
  all 
  the 
  names 
  seem 
  to 
  have 
  

   been 
  applied 
  to 
  the 
  smaller 
  of 
  the 
  two 
  forms. 
  Dr. 
  Jentink, 
  

   as 
  I 
  did 
  formerly, 
  considered 
  them 
  all 
  one 
  ; 
  but 
  his 
  measures 
  

   show 
  the 
  same 
  gap 
  as 
  ours 
  do. 
  Whether 
  any 
  of 
  the 
  large 
  

   form 
  were 
  before 
  Dr. 
  Colin 
  when 
  writing 
  his 
  somewhat 
  

   eccentrically 
  prepared 
  paper 
  on 
  the 
  group 
  f 
  is 
  not 
  clear, 
  as 
  

   he 
  only 
  gives 
  proportional 
  (and 
  not 
  absolute) 
  measures; 
  but, 
  

   in 
  any 
  case, 
  if 
  they 
  were, 
  he 
  took 
  them 
  for 
  the 
  typical 
  

   dorei/ana, 
  giving 
  the 
  duplicate 
  names 
  alticeps 
  and 
  hreviceps 
  

   to 
  the 
  smaller 
  form, 
  and 
  keiensis 
  to 
  the 
  Key 
  Island 
  one, 
  

   which 
  already 
  had 
  a 
  special 
  name 
  {riifescens). 
  

  

  It 
  may 
  be 
  noted 
  that 
  the 
  type 
  of 
  doreyam 
  was 
  an 
  old 
  male 
  

   with 
  much 
  worn 
  teeth, 
  and 
  that 
  its 
  skull-length 
  is 
  conspicu- 
  

   ously 
  less 
  than 
  is 
  that 
  of 
  the 
  type 
  of 
  gargantua, 
  which 
  is 
  a 
  

   youngish 
  adult, 
  its 
  teeth 
  almost 
  unworn. 
  The 
  largest 
  

   gargantua 
  attains 
  a 
  condylo-basal 
  length 
  of 
  88 
  mm. 
  

  

  * 
  E. 
  g., 
  Thos. 
  Cat. 
  Mars. 
  B. 
  M. 
  p. 
  249, 
  tlie 
  male 
  specimen, 
  and 
  Jentink, 
  

   Nova 
  Guinea, 
  ix. 
  p. 
  179. 
  Male 
  no. 
  306 
  and 
  male 
  without 
  number, 
  

   t 
  Zool. 
  Anz. 
  1910, 
  p. 
  718. 
  

  

  