﻿new 
  Shells 
  from 
  British 
  East 
  Africa. 
  467 
  

  

  with 
  very 
  fine 
  wavy 
  stria? 
  ; 
  umbilicus 
  very 
  narrow 
  ; 
  colu- 
  

   mella 
  short, 
  curved; 
  labium 
  simple, 
  acute; 
  aperture 
  broadly 
  

   sublimate. 
  

  

  Alt. 
  1*25, 
  diam. 
  maj. 
  2*5, 
  diam. 
  min. 
  225 
  mm. 
  

  

  Hah. 
  Between 
  Rumruti 
  and 
  Mount 
  Kenia, 
  British 
  East 
  

   Africa 
  ; 
  two 
  specimens 
  were 
  also 
  collected 
  at 
  Rumruti 
  on 
  the 
  

   Laikipia 
  Plateau. 
  

  

  Zingis 
  gaziensis, 
  sp. 
  n. 
  (Fig. 
  10.) 
  

  

  Shell 
  depressedly 
  turbinate, 
  thin, 
  pale 
  yellowish 
  brown 
  ; 
  

   whorls 
  4^, 
  sculptured 
  with 
  coarse, 
  transverse, 
  subplicate 
  lines 
  

   of 
  growth; 
  suture 
  impressed; 
  umbilicus 
  deep; 
  columella 
  

   arched, 
  outwardly 
  dilated 
  above 
  ; 
  labium 
  simple 
  ; 
  aperture 
  

   rather 
  broadly 
  lunate. 
  

  

  Alt. 
  4, 
  diam. 
  maj. 
  7*5, 
  diam. 
  min. 
  6*5 
  mm. 
  

  

  Aperture 
  : 
  alt. 
  3, 
  diam. 
  2*5 
  mm. 
  

  

  Hub. 
  Gazi, 
  British 
  East 
  Africa. 
  

  

  Zingis 
  consanguinea, 
  sp. 
  n. 
  (Fig. 
  11.) 
  

  

  Closely 
  allied 
  to 
  Z. 
  gaziensis, 
  but 
  darker 
  in 
  colour, 
  with 
  

   rather 
  more 
  produced 
  spire 
  and 
  wider 
  umbilicus 
  ; 
  the 
  aperture 
  

   also 
  is 
  rather 
  more 
  broadly 
  lunate. 
  

  

  Alt. 
  4*75, 
  diam. 
  maj. 
  8*25, 
  diam. 
  min. 
  7 
  mm. 
  

  

  Aperture 
  : 
  alt. 
  3'25, 
  diam. 
  3*5 
  mm. 
  

  

  Hah. 
  Between 
  Rumruti 
  and 
  Mount 
  Kenia, 
  British 
  East 
  

   Africa; 
  also 
  collected 
  on 
  Mount 
  Kenia 
  at 
  from 
  6000-8000 
  

   feet 
  altitude. 
  

  

  Zingis 
  keniana, 
  sp. 
  n. 
  (Fig. 
  12.) 
  

  

  Shell 
  turbinate, 
  with 
  moderately 
  exserted 
  spire, 
  thin, 
  pale 
  

   brown, 
  painted 
  with 
  a 
  rather 
  broad 
  band 
  of 
  pale 
  reddish 
  

   purple 
  just 
  above 
  the 
  periphery; 
  whorls 
  5^, 
  regularly 
  in- 
  

   creasing, 
  the 
  last 
  rather 
  globose, 
  marked 
  with 
  growth-ridges 
  

   and 
  sculptured 
  with 
  very 
  fine, 
  closely 
  set, 
  silky, 
  oblique, 
  

   transverse 
  and 
  fine, 
  spiral 
  striae 
  ; 
  suture 
  impressed, 
  somewhat 
  

   wrinkled 
  below 
  ; 
  base 
  of 
  shell 
  spirally 
  striate 
  ; 
  umbilicus 
  very 
  

   narrow, 
  deep, 
  overhung 
  by 
  the 
  expansion 
  of 
  the 
  columella 
  ; 
  

   columella 
  descending 
  in 
  a 
  curve, 
  outwardly 
  expanded 
  and 
  

   diffused 
  into 
  a 
  polished, 
  granular, 
  spirally 
  striate, 
  parietal 
  

   callus 
  which 
  readies 
  the 
  lip 
  above 
  ; 
  labrum 
  simple; 
  aperture 
  

   broadly 
  sublunate. 
  

  

  Alt. 
  10, 
  diam. 
  maj. 
  14"25, 
  diam. 
  min. 
  12*5 
  mm. 
  

  

  Aperture 
  : 
  alt. 
  7, 
  diam. 
  6 
  mm. 
  

  

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

   British 
  East 
  Africa. 
  

  

  31* 
  

  

  