﻿• 
  On 
  new 
  Shells 
  from 
  British 
  East 
  Africa. 
  463 
  

  

  coming 
  vertical 
  terminally. 
  Last 
  molar 
  disproportionately 
  

   smaller 
  than 
  the 
  other 
  cheek-teeth. 
  

  

  Dimensions 
  of 
  the 
  type 
  (measured 
  in 
  flesh) 
  : 
  — 
  

  

  Head 
  and 
  body 
  143 
  mm.; 
  tail 
  13; 
  hind 
  foot 
  28. 
  

  

  Skull 
  : 
  condylo-basal 
  length 
  37*6 
  ; 
  condylo-incisive 
  length 
  

   30-6; 
  zygomatic 
  breadth 
  28"7; 
  nasals 
  16x4*7; 
  inteiorbital 
  

   breadth 
  10*8; 
  palatilar 
  length 
  22'6; 
  upper 
  molar 
  series 
  

   (crowns) 
  6*8. 
  

  

  Hab. 
  and 
  Type 
  as 
  above. 
  

  

  This 
  interesting 
  rodent-mole, 
  which 
  I 
  have 
  named 
  in 
  

   honour 
  of 
  the 
  donor 
  of 
  the 
  collection, 
  is 
  widely 
  different 
  from 
  

   any 
  described 
  species, 
  as 
  is, 
  indeed, 
  to 
  be 
  expected 
  from 
  its 
  

   locality. 
  Perhaps 
  its 
  nearest 
  ally 
  is 
  the 
  G. 
  Jecliei 
  of 
  Mon- 
  

   buttu, 
  but 
  that 
  is 
  considerably 
  larger. 
  The 
  only 
  other 
  West- 
  

   African 
  species, 
  G. 
  zechi, 
  of 
  Togoland, 
  is 
  a 
  very 
  pale 
  animal, 
  

   while 
  G.foxi 
  is 
  one 
  of 
  the 
  darkest 
  species 
  of 
  the 
  genus. 
  

  

  L1V. 
  — 
  Descriptions 
  of 
  Thirty-six 
  new 
  Species 
  of 
  Land 
  and 
  

   Freshwater 
  Shells 
  from 
  British 
  East 
  Africa, 
  chiefly 
  fi\m 
  

   Mount 
  Kenta 
  and 
  the 
  neighbouring 
  District. 
  By 
  H. 
  B. 
  

   Preston, 
  F.Z.S. 
  

  

  [Plates 
  XI. 
  & 
  XII.] 
  

  

  Ennea 
  consobrina, 
  sp. 
  n. 
  (Fig. 
  1.) 
  

  

  Allied 
  to 
  E. 
  unilirata, 
  Smith 
  *, 
  which 
  also 
  occurred 
  at 
  the 
  

   same 
  locality, 
  but 
  differing 
  from 
  that 
  species 
  in 
  its 
  larger, 
  

   more 
  solid, 
  and 
  more 
  cylindrical 
  form, 
  the 
  later 
  whorls 
  in 
  the 
  

   present 
  species 
  not 
  decreasing 
  in 
  size, 
  its 
  coarsely 
  striate 
  

   sculpture, 
  broader 
  and 
  more 
  rectangular 
  aperture, 
  and 
  thick 
  

   rather 
  broadly 
  reflexed 
  labrum 
  ; 
  moreover 
  it 
  has 
  one 
  whorl 
  

   more, 
  the 
  whorls 
  are 
  flatter, 
  and 
  the 
  suture 
  is 
  shallower. 
  

  

  Alt. 
  4*25, 
  diam. 
  maj. 
  2*25 
  mm. 
  

  

  Aperture: 
  alt. 
  1, 
  diam. 
  "75 
  mm. 
  

  

  Hab. 
  Mount 
  Kenia, 
  at 
  an 
  altitude 
  of 
  9000-10,000 
  feet, 
  

   British 
  East 
  Africa. 
  

  

  Ennea 
  iota, 
  sp. 
  n. 
  (Fig. 
  2.) 
  

  

  Shell 
  minute, 
  ovately 
  pyramidal, 
  thin, 
  white; 
  whorls 
  5, 
  

   regularly 
  increasing, 
  the 
  last 
  ascending 
  in 
  front, 
  sculptured 
  

  

  * 
  J. 
  Couch, 
  x. 
  p. 
  315. 
  

  

  