﻿new 
  African 
  Muridse. 
  379 
  

  

  ochraceous 
  buff 
  in 
  continuation 
  with 
  the 
  huffy 
  line 
  on 
  the 
  

   sides. 
  Hairs 
  round 
  base 
  of 
  tail 
  with 
  bright 
  buffy 
  ends. 
  Tail 
  

   practically 
  naked, 
  dark 
  brown, 
  scarcely 
  lighter 
  below. 
  

  

  Skull 
  conspicuously 
  smaller 
  than 
  that 
  of 
  (E. 
  hypoxanthus. 
  

   Cranial 
  ridges 
  less 
  strongly 
  developed. 
  Supraorbital 
  ridges 
  

   more 
  divergent 
  posteriorly. 
  Palatal 
  foramina 
  broad 
  in 
  front, 
  

   strongly 
  narrowed 
  behind. 
  Palate 
  between 
  molars 
  very 
  

   narrow. 
  Teeth 
  essentially 
  as 
  in 
  CE. 
  hypoxanthus. 
  

   Dimensions 
  of 
  the 
  type 
  (measured 
  in 
  flesh) 
  : 
  — 
  

   Head 
  and 
  body 
  112 
  mm. 
  ; 
  tail 
  157 
  ; 
  hind 
  foot 
  29; 
  ear 
  17. 
  

   Skull: 
  greatest 
  length 
  305 
  ; 
  basilar 
  length 
  23*6; 
  greatest 
  

   breadth 
  15*3 
  ; 
  nasals 
  11*6 
  ; 
  interorbital 
  breadth 
  4'8 
  ; 
  pala- 
  

   tilar 
  length 
  13 
  ; 
  palatal 
  foramina 
  5*1 
  ; 
  breadth 
  of 
  palate 
  

   between 
  m 
  1 
  1*8 
  ; 
  upper 
  molar 
  series 
  66. 
  

  

  Hub. 
  Bibianaha, 
  near 
  Dunkwa, 
  Gold 
  Coast. 
  Alt. 
  700'. 
  

   Type. 
  Young 
  adult 
  female. 
  B.M. 
  no. 
  11. 
  2. 
  14. 
  9. 
  

   Original 
  number 
  58. 
  Collected 
  12th 
  Jan., 
  1911, 
  and 
  pre- 
  

   sented 
  by 
  Dr. 
  H. 
  Gr. 
  F. 
  Spurrell. 
  Two 
  young 
  specimens 
  

   also 
  sent. 
  

  

  This 
  beautiful 
  species 
  presents 
  the 
  extreme 
  of 
  a 
  type 
  of 
  

   colouring 
  found 
  in 
  several 
  different 
  parts 
  of 
  the 
  world 
  — 
  for 
  

   instance, 
  in 
  S. 
  America, 
  in 
  Peramys 
  (sea/ops 
  &c.) 
  and 
  in 
  

   Akodon 
  [bacchante 
  &c). 
  In 
  Africa 
  all 
  the 
  members 
  of 
  

   (Enomys 
  show 
  something 
  of 
  it, 
  the 
  different 
  subspecies 
  being- 
  

   characterized 
  by 
  its 
  degree 
  of 
  intensity. 
  

  

  The 
  young 
  specimens 
  of 
  (E. 
  ornatus 
  are 
  even 
  more 
  vividly 
  

   coloured 
  than 
  the 
  adult, 
  the 
  ears 
  especially 
  standing 
  out 
  in 
  

   marked 
  contrast 
  to 
  the 
  rest 
  of 
  the 
  head. 
  

  

  As 
  a 
  species 
  CE. 
  ornatus 
  is 
  at 
  once 
  separable 
  from 
  the 
  

   Western 
  CE. 
  hypoxanthus, 
  and 
  in 
  a 
  less 
  degree 
  from 
  the 
  

   Eastern 
  CE. 
  bacchante, 
  by 
  its 
  much 
  smaller 
  skull 
  and 
  teeth, 
  

   though 
  the 
  hind 
  foot 
  is 
  of 
  nearly 
  equal 
  length 
  to 
  that 
  of 
  the 
  

   latter. 
  

  

  The 
  opposite 
  extreme 
  of 
  the 
  (Enomys 
  coloration 
  is 
  pre- 
  

   sented 
  by 
  the 
  following 
  : 
  — 
  

  

  (Enomys 
  bacchante 
  mcerens, 
  subsp. 
  n. 
  

  

  An 
  (Enomys 
  almost 
  without 
  buffy 
  markings, 
  the 
  belly 
  

   suffused 
  with 
  slaty. 
  

  

  Size 
  and 
  other 
  essential 
  characters 
  as 
  in 
  bacchante. 
  Colour 
  

   throughout 
  much 
  darker 
  and 
  less 
  ornamented. 
  Upper 
  

   surface 
  dark, 
  between 
  "olive" 
  and 
  " 
  bistre," 
  the 
  rump 
  and 
  

   legs 
  with 
  an 
  almost 
  imperceptible 
  suffusion 
  of 
  clay-colour. 
  

   Under 
  surface 
  lighter 
  than 
  the 
  upper, 
  the 
  hairs 
  dark 
  slaty 
  

   proximally, 
  dull 
  clay-colour 
  terminally, 
  no 
  lateral 
  line 
  of 
  

  

  25* 
  

  

  