﻿522 
  Mr. 
  G. 
  Dollman 
  on 
  

  

  effect 
  of 
  the 
  black 
  hair-tips 
  is 
  most 
  marked. 
  Face 
  and 
  head 
  

   pale 
  buff-coloured, 
  rather 
  darker 
  aud 
  redder 
  on 
  tbe 
  back 
  of 
  

   head 
  and 
  neck 
  (buff 
  no. 
  2, 
  ' 
  Repertoire 
  de 
  Couleurs 
  ') 
  . 
  Sides 
  

   of 
  face 
  and 
  flanks 
  pale 
  buff 
  (pale 
  buff 
  no. 
  1, 
  ' 
  Repertoire 
  de 
  

   Couleurs'); 
  hairs 
  with 
  slate-grey 
  bases, 
  paling 
  to 
  white 
  

   towards 
  the 
  tips, 
  apical 
  third 
  buff-coloured. 
  Ears 
  clothed 
  

   with 
  short 
  brownish 
  and 
  buff-colonred 
  hairs 
  ; 
  tips 
  of 
  cars 
  

   greyish 
  white. 
  Backs 
  of 
  hands 
  aud 
  feet 
  and 
  ventral 
  surface 
  

   of 
  body 
  white. 
  Tail 
  about 
  as 
  hairy 
  as 
  in 
  vicina, 
  much 
  lighter 
  

   above, 
  the 
  hairs 
  on 
  upper 
  surface 
  brownish 
  red. 
  Ventral 
  

   surface 
  of 
  tail, 
  like 
  that 
  of 
  vicina, 
  light 
  anteriorly 
  and 
  

   darkening 
  towards 
  the 
  tip. 
  

  

  Size 
  of 
  skull 
  rather 
  less 
  than 
  in 
  T. 
  vicina 
  ; 
  molar 
  teeth 
  a 
  

   good 
  deal 
  smaller. 
  

  

  Dimensions 
  of 
  the 
  type 
  (measured 
  in 
  the 
  flesh) 
  : 
  — 
  

  

  Head 
  and 
  body 
  145 
  mm. 
  ; 
  tail 
  182 
  ; 
  hind 
  foot 
  35 
  ; 
  ear 
  21'5. 
  

  

  Skull 
  : 
  greatest 
  length 
  41 
  ; 
  basilar 
  length 
  31*2; 
  condylo- 
  

   incisive 
  length 
  362 
  ; 
  zygomatic 
  breadth 
  21 
  ; 
  interorbital 
  

   breadth 
  7 
  ; 
  breadth 
  of 
  brain-case 
  (across 
  squamosal 
  region) 
  

   18; 
  length 
  of 
  nasals 
  18; 
  palatilar 
  length 
  19 
  ; 
  breadth 
  of 
  

   palate 
  (inside 
  m 
  1 
  ) 
  5 
  ; 
  length 
  of 
  palatal 
  foramina 
  7'5 
  ; 
  greatest 
  

   diameter 
  of 
  bullae 
  11 
  ; 
  alveolar 
  length 
  of 
  upper 
  cheek- 
  

   teeth 
  6 
  - 
  5. 
  

  

  Hab. 
  Nyama 
  Nyango, 
  Eusso 
  Nyiro. 
  Altitude 
  3000 
  feet. 
  

  

  Type. 
  Old 
  female. 
  Original 
  number 
  1799. 
  Collected 
  

   January 
  27th, 
  1911. 
  

  

  The 
  light 
  colour 
  of 
  the 
  upper 
  surface, 
  both 
  of 
  the 
  back 
  and 
  

   tail, 
  of 
  this 
  Eusso 
  Nyiro 
  7'atera 
  readily 
  distinguishes 
  it 
  from 
  

   the 
  Kitui 
  species, 
  T. 
  vicina, 
  and, 
  taking 
  into 
  consideration 
  

   the 
  cranial 
  differences 
  between 
  the 
  two 
  forms, 
  the 
  Eusso 
  

   Nyiro 
  specimens 
  must 
  be 
  regarded 
  as 
  specifically 
  distinct. 
  

  

  Tatera 
  nigricauda 
  nyama, 
  subsp. 
  n. 
  

  

  Closely 
  allied 
  to 
  Tatera 
  nigricauda, 
  Pet., 
  but 
  smaller 
  in 
  

   size 
  and 
  with 
  a 
  lighter- 
  coloured 
  tail. 
  

  

  Size 
  rather 
  less 
  than 
  in 
  T. 
  nigricauda, 
  a 
  feature 
  more 
  

   noticeable 
  in 
  the 
  skull- 
  than 
  in 
  the 
  skin-dimensions. 
  General 
  

   colour 
  of 
  upper 
  surface 
  much 
  as 
  in 
  T. 
  nigricauda, 
  the 
  dark 
  

   hair-tips 
  not 
  so 
  prominent, 
  the 
  general 
  effect 
  a 
  little 
  lighter 
  

   (buff 
  no. 
  1 
  mixed 
  with 
  snuff-brown 
  no. 
  2, 
  'Repertoire 
  de 
  

   Couleurs'). 
  Flanks 
  rather 
  purer 
  in 
  colour 
  (pale 
  buff 
  no. 
  1, 
  

   ' 
  Rep. 
  de 
  Coul.'), 
  the 
  grey 
  bases 
  of 
  the 
  hairs 
  much 
  lighter, 
  

   in 
  some 
  cases 
  being 
  almost 
  white. 
  Backs 
  of 
  hands 
  and 
  feet 
  

   and 
  entire 
  ventral 
  surface 
  white. 
  Tail 
  very 
  similar 
  to 
  that 
  

   of 
  nigricauda, 
  but 
  hairs 
  lighter 
  and 
  browner, 
  the 
  general 
  

  

  