﻿Mammals 
  from 
  British 
  East 
  Africa. 
  525 
  

  

  Skull: 
  greatest 
  length 
  32*1; 
  basilar 
  length 
  26'6 
  ; 
  con- 
  

   dylo-incisive 
  length 
  31; 
  zygomatic 
  breadth 
  15; 
  breadth 
  of 
  

   brain-case 
  (across 
  squamosal 
  region) 
  125 
  ; 
  interorbital 
  

   breadth 
  4*7 
  ; 
  greatest 
  length 
  of 
  nasals 
  13'5 
  ; 
  palatilar 
  

   length 
  15 
  ; 
  width 
  of 
  palate 
  (inside 
  m 
  1 
  ) 
  3*2 
  ; 
  length 
  of 
  

   palatal 
  foramina 
  8 
  ; 
  alveolar 
  length 
  of 
  upper 
  molar 
  

   series 
  5*2. 
  

  

  Hab. 
  Baringo. 
  Altitude 
  4000 
  feet. 
  

  

  Type. 
  Old 
  female. 
  B.M. 
  no. 
  10. 
  12. 
  19. 
  27. 
  Original 
  

   number 
  1353. 
  Collected 
  on 
  October 
  10th, 
  1910. 
  

  

  The 
  smaller 
  size 
  of 
  this 
  species 
  is 
  at 
  once 
  sufficient 
  to 
  

   distinguish 
  it 
  from 
  de 
  Winton's 
  E. 
  Uganda. 
  This 
  new 
  form 
  

   appears 
  to 
  be 
  fairly 
  widely 
  distributed 
  and 
  to 
  occur 
  side 
  by 
  

   side 
  with 
  the 
  larger 
  species, 
  as 
  is 
  evident 
  by 
  examination 
  of 
  

   the 
  series 
  of 
  specimens 
  in 
  the 
  Museum 
  collection. 
  Both 
  

   species 
  were 
  obtained 
  by 
  the 
  Ruwenzori 
  Expedition, 
  and 
  

   Mr. 
  Kemp 
  has 
  collected 
  E. 
  uyandce 
  and 
  E. 
  effectus 
  at 
  

   Mumias 
  and 
  Mt. 
  Elgon. 
  There 
  is 
  a 
  considerable 
  range 
  of 
  

   variation 
  in 
  size 
  and 
  colour 
  presented 
  by 
  the 
  series 
  of 
  

   specimens 
  from 
  Elgon 
  and 
  Ruwenzori, 
  but 
  not 
  sufficient 
  to 
  

   indicate 
  that 
  they 
  represent 
  more 
  than 
  one 
  species. 
  As 
  

   regards 
  the 
  other 
  known 
  forms 
  of 
  this 
  group, 
  the 
  coast 
  

   species, 
  E. 
  hildebrandti, 
  is 
  rather 
  similar 
  in 
  size 
  to 
  E. 
  effectus, 
  

   but 
  greyer 
  and 
  lighter 
  in 
  colour. 
  E. 
  panya. 
  recently 
  de- 
  

   scribed 
  by 
  Heller 
  from 
  the 
  Athi 
  Plains, 
  appears 
  to 
  resemble 
  

   this 
  new 
  species 
  in 
  general 
  colour, 
  except 
  that 
  the 
  dorsal 
  

   and 
  ventral 
  surfaces 
  in 
  panya 
  are 
  described 
  as 
  merging 
  

   gradually 
  into 
  one 
  another, 
  whereas 
  in 
  effectus 
  there 
  is 
  a 
  

   distinct 
  line 
  of 
  demarcation 
  between 
  the 
  rich 
  buffy 
  tint 
  of 
  

   the 
  flanks 
  and 
  the 
  white 
  under 
  surface. 
  The 
  dimensions 
  of 
  

   the 
  two 
  species 
  are 
  also 
  conspicuously 
  different. 
  

  

  It 
  is 
  evident 
  from 
  Heller's 
  description 
  of 
  E. 
  panya 
  that 
  

   it 
  is 
  not 
  generally 
  known 
  that 
  the 
  type 
  specimen 
  of 
  uyandce 
  

   is 
  a 
  young 
  individual, 
  and 
  to 
  this 
  fact 
  are 
  due 
  both 
  its 
  dark 
  

   colouring 
  and 
  small 
  size. 
  In 
  the 
  Museum 
  collection 
  is 
  a 
  

   series 
  of 
  adult 
  specimens 
  from 
  Entebbe, 
  the 
  type 
  locality, 
  

   received 
  since 
  de 
  Wiuton 
  described 
  the 
  species, 
  and 
  the 
  

   following 
  brief 
  description 
  of 
  the 
  appearance 
  of 
  E. 
  uyandce 
  

   in 
  the 
  adult 
  phase 
  may 
  not 
  here 
  be 
  out 
  of 
  place 
  : 
  — 
  

  

  Size 
  rather 
  large, 
  hind 
  foot 
  measuring 
  27 
  or 
  28 
  mm. 
  

   in 
  length. 
  

  

  General 
  colour 
  of 
  back 
  dark 
  brown 
  washed 
  with 
  buff, 
  

   rather 
  darker 
  and 
  blacker 
  down 
  the 
  back 
  and 
  more 
  buffy 
  on 
  

   the 
  flanks. 
  Buffy 
  tint 
  on 
  flanks 
  gradually 
  merging 
  into 
  the 
  

   greyish-white 
  underparts. 
  Sides 
  of 
  base 
  buffy 
  orange. 
  

   Hands 
  and 
  feet 
  white. 
  Underparts 
  dirty 
  white, 
  hairs 
  with 
  

  

  