﻿On 
  new 
  Mammals 
  from 
  the 
  Trengganu 
  Archipelago. 
  115 
  

  

  Rhipidomys 
  hicullus, 
  sp. 
  n. 
  

  

  A 
  large 
  species, 
  with 
  grey-based 
  belly-hairs 
  and 
  broad 
  

   palate. 
  

  

  General 
  external 
  appearance 
  very 
  much 
  as 
  in 
  Rh. 
  leuco- 
  

   dactylus, 
  Tschudi, 
  to 
  which 
  I 
  refer 
  specimens 
  from 
  Marcapata 
  

   and 
  Ocabamba. 
  But 
  while 
  the 
  belly-hairs 
  of 
  leucodactylus 
  

   are 
  grey-based 
  laterally 
  and 
  wholly 
  white 
  down 
  the 
  centre 
  of 
  

   the 
  belly, 
  in 
  lucullus 
  they 
  are 
  grey-based 
  throughout. 
  Tail 
  

   more 
  heavily 
  haired 
  than 
  in 
  leiicodactylus 
  , 
  the 
  hairs 
  of 
  the 
  

   terminal 
  tuft 
  attaining 
  15-17 
  mm. 
  in 
  length. 
  Feet 
  coloured 
  

   as 
  in 
  leucodactylus. 
  

  

  Skull 
  with 
  rather 
  larger 
  brain-case 
  than 
  in 
  leucodactylus 
  . 
  

   Nasals 
  very 
  narrow. 
  Supraorbital 
  space 
  narrow, 
  its 
  edges 
  

   nearly 
  parallel, 
  with 
  faintly 
  indicated 
  postorbital 
  projections. 
  

   Palate 
  broader 
  than 
  in 
  leucodactylus, 
  especially 
  behind, 
  the 
  

   two 
  molar 
  series 
  almost 
  diverging 
  posteriorly, 
  and 
  the 
  breadth 
  

   across 
  the 
  narrowest 
  point 
  on 
  the 
  bone 
  behind 
  the 
  molars 
  at 
  

   the 
  anterior 
  base 
  of 
  the 
  pterygoids 
  conspicuously 
  greater 
  ; 
  

   the 
  mesopterygoid 
  fossa 
  also 
  broader. 
  

  

  Dimensions 
  of 
  the 
  type 
  (measured 
  in 
  the 
  flesh 
  by 
  the 
  

   collector) 
  :— 
  

  

  Head 
  and 
  body 
  180 
  mm.; 
  tail 
  220 
  ; 
  hind 
  foot 
  34. 
  

  

  Skull: 
  greatest 
  length 
  41"5 
  ; 
  basilar 
  length 
  33; 
  zygo- 
  

   matic 
  breadth 
  23*3 
  ; 
  nasals 
  8*2 
  X 
  4'5 
  ; 
  interoibital 
  breadth 
  5'7 
  ; 
  

   breadth 
  of 
  brain-case 
  17*3; 
  palatilar 
  length 
  17*5; 
  diastema 
  

   11; 
  palatal 
  foramina 
  8*3 
  ; 
  breadth 
  between 
  outer 
  sides 
  of 
  

   m 
  3 
  8*7; 
  outside 
  breadth 
  across 
  necks 
  of 
  pterygoids 
  7*1; 
  

   breadth 
  of 
  mesopterygoid 
  fossa 
  3*4 
  ; 
  upper 
  molar 
  series 
  6"8. 
  

  

  Bab. 
  Garita 
  del 
  Sol, 
  Valley 
  of 
  Vitoc, 
  Upper 
  Perene, 
  Central 
  

   Peru. 
  Alt. 
  5700'. 
  

  

  Type. 
  Adult 
  female. 
  B.M. 
  no. 
  94. 
  10. 
  1. 
  11. 
  Collected 
  

   by 
  J. 
  Kalinowski, 
  5th 
  July, 
  1891. 
  Received 
  in 
  exchange 
  

   from 
  the 
  Branicki 
  Museum. 
  

  

  Readily 
  distinguishable 
  by 
  the 
  grey 
  -based 
  belly-hairs 
  and 
  

   he 
  various 
  cranial 
  characters 
  described. 
  

  

  XII. 
  — 
  Diagnoses 
  of 
  new 
  Mammals 
  from 
  the 
  Trengganu 
  Archi- 
  

   pelago, 
  East 
  Coast 
  of 
  the 
  Malay 
  Peninsula. 
  By 
  C. 
  BoDEN 
  

   Kloss. 
  

  

  The 
  following 
  are 
  diagnoses 
  of 
  new 
  mammals 
  obtained 
  by 
  

   Mr. 
  C. 
  Boden 
  Kloss 
  in 
  the 
  Redang, 
  Perhentian, 
  and 
  other 
  

   small 
  islands 
  off 
  the 
  coast 
  of 
  Trengganu. 
  Full 
  descriptions, 
  

  

  8* 
  

  

  