﻿346 
  Mr. 
  R. 
  I. 
  Pocock 
  on 
  some 
  

  

  humerus 
  7, 
  of 
  brachium 
  7£, 
  of 
  " 
  hand-back 
  " 
  3f 
  , 
  of 
  movable 
  

   finger 
  8| 
  ; 
  width 
  of 
  hand 
  3, 
  of 
  brachium 
  3^ 
  ; 
  length 
  of 
  pecten 
  

  

  Five 
  specimens 
  : 
  — 
  two 
  males 
  from 
  West 
  Africa 
  ; 
  three 
  fe- 
  

   males, 
  two 
  from 
  South 
  Africa 
  collected 
  by 
  Dr. 
  Quain 
  and 
  Dr. 
  

   Smith, 
  and 
  one, 
  without 
  locality, 
  presented 
  by 
  Capt. 
  Belcher, 
  

   R.N. 
  

  

  This 
  species 
  is 
  closely 
  allied 
  to 
  B. 
  liosoma, 
  Ehr., 
  and 
  to 
  

   B. 
  raudas 
  (Simon, 
  Ann. 
  Soc. 
  Ent. 
  Fr. 
  (6) 
  vii. 
  p. 
  377), 
  but 
  

   differs 
  from 
  both 
  in 
  the 
  flatness 
  of 
  the 
  upper 
  surface 
  of 
  the 
  

   first 
  two 
  caudal 
  segments 
  and 
  in 
  the 
  straightness 
  of 
  the 
  keels 
  

   which 
  laterally 
  bound 
  this 
  surface 
  in 
  the 
  second 
  segment 
  ; 
  in 
  

   B. 
  liosoma 
  these 
  keels 
  sensibly 
  converge 
  behind. 
  Further- 
  

   more, 
  the 
  posterior 
  segments 
  are 
  considerably 
  higher 
  and 
  more 
  

   deeply 
  excavated 
  than 
  in 
  liosoma, 
  and 
  the 
  granules 
  of 
  the 
  

   intercarinal 
  spaces 
  are 
  smaller, 
  more 
  numerous, 
  and 
  more 
  

   close-set. 
  

  

  Buthus 
  hmbatus, 
  sp. 
  n. 
  (PI. 
  XV. 
  figs. 
  7, 
  7 
  a.) 
  

  

  Colour. 
  — 
  Middle 
  of 
  each 
  tergite 
  occupied 
  by 
  a 
  wide 
  black 
  

   band 
  ; 
  lateral 
  portions 
  testaceous 
  or 
  ochraceous 
  ; 
  the 
  extreme 
  

   lateral 
  border 
  black 
  ; 
  anterior 
  portion 
  of 
  the 
  cephalothorax 
  

   from 
  the 
  median 
  eyes 
  to 
  the 
  lateral 
  eyes 
  black 
  ; 
  posterior 
  

   half 
  above 
  fuscous, 
  at 
  the 
  sides 
  ochraceous 
  or 
  testaceous 
  ; 
  

   extreme 
  lateral 
  margin 
  black. 
  Upper 
  and 
  side 
  surfaces 
  of 
  

   anterior 
  four 
  caudal 
  segments 
  ochraceous, 
  of 
  the 
  fifth 
  seg- 
  

   ment 
  fuscous 
  ; 
  under 
  surface 
  of 
  fifth 
  deep 
  black, 
  of 
  the 
  first 
  

   four 
  ochraceous, 
  with 
  four 
  black 
  keels 
  ; 
  vesicle 
  ochraceous, 
  

   with 
  a 
  median 
  dark 
  line 
  beneath, 
  fuscous 
  above 
  and 
  at 
  the 
  

   sides. 
  Palpi, 
  cheliceraB, 
  and 
  legs 
  ochraceous 
  or 
  testaceous 
  ; 
  

   sternites 
  and 
  pectines 
  testaceous. 
  

  

  Cephalothorax. 
  — 
  Anterior 
  border 
  slightly 
  concave, 
  nar- 
  

   rowed 
  in 
  front, 
  wider 
  behind 
  than 
  long. 
  Resembles 
  that 
  of 
  

   B. 
  liosoma) 
  Ehr., 
  in 
  being 
  without 
  a 
  trace 
  of 
  granular 
  keels. 
  

   The 
  greater 
  part 
  covered 
  with 
  fine 
  close-set 
  granules 
  ; 
  inter- 
  

   ocular 
  area 
  with 
  a 
  smooth 
  median 
  sulcus 
  which 
  can 
  be 
  traced 
  

   in 
  front 
  and 
  behind 
  nearly 
  to 
  the 
  anterior 
  and 
  posterior 
  mar- 
  

   gins 
  of 
  the 
  cephalothorax 
  ; 
  in 
  the 
  posterior 
  half 
  from 
  this 
  

   smooth 
  median 
  tract 
  proceed 
  obscurely 
  marked, 
  smooth, 
  trans- 
  

   verse 
  tracts, 
  which 
  extend 
  over 
  the 
  lateral 
  portions 
  of 
  the 
  

   cephalothorax. 
  

  

  Abdomen. 
  — 
  First 
  six 
  tergites 
  marked 
  with 
  but 
  one 
  median 
  

   smooth 
  keel 
  in 
  the 
  hinder 
  half; 
  the 
  rest 
  of 
  each 
  very 
  finely 
  

   granular, 
  with 
  a 
  coarser 
  row 
  on 
  the 
  hinder 
  margin. 
  Seventh 
  

  

  