﻿CRUSTACEA, 
  557 
  

  

  of 
  carapace, 
  in 
  the 
  middle 
  line, 
  about 
  6k 
  lines 
  (14 
  milliiu.) 
  ; 
  length 
  of 
  

   larger 
  (left) 
  chelipede 
  nearly 
  11 
  lines 
  (23 
  millim.) 
  ; 
  of 
  second 
  (left) 
  

   ambulatory 
  leg 
  1 
  inch 
  1-^ 
  line 
  (28 
  millim.). 
  

  

  Seychelles, 
  4-12 
  fms. 
  "(No. 
  194); 
  an 
  adult 
  female. 
  

  

  P. 
  guttatus, 
  Olivier, 
  as 
  described 
  and 
  figured, 
  differs 
  somewhat 
  in 
  

   the 
  spinulation 
  of 
  the 
  chelipedes 
  and 
  two 
  following 
  legs 
  and 
  in 
  the 
  

   coloration. 
  

  

  In 
  the 
  form 
  and 
  spinulation 
  of 
  the 
  larger 
  chelipede 
  it 
  somewhat 
  

   resembles 
  P. 
  varipes. 
  Heller*; 
  but 
  that 
  species 
  is 
  distinguished 
  by 
  

   many 
  important 
  characters, 
  as(^. 
  (/.)by 
  the 
  shorter 
  eye-peduncles, 
  

   the 
  existence 
  of 
  a 
  strong 
  tooth 
  on 
  the 
  upper 
  margin 
  of 
  the 
  merus- 
  

   joint 
  of 
  the 
  larger 
  chelipede, 
  and 
  in 
  the 
  form 
  and 
  sculpture 
  of 
  the 
  

   left 
  leg 
  of 
  the 
  third 
  pair 
  {cf. 
  Dr. 
  Heller's 
  figure, 
  t. 
  c. 
  pi. 
  ii. 
  fig. 
  3). 
  

  

  The 
  type 
  of 
  P. 
  (juttatns 
  was 
  from 
  the 
  Mauritius 
  ; 
  Lenz 
  and 
  

   Kichters 
  record 
  this 
  species 
  from 
  Madagascar. 
  

  

  Dana 
  refers 
  specimens 
  from 
  Upolu 
  (which 
  may, 
  however, 
  be 
  

   specifically 
  distinct) 
  to 
  this 
  species. 
  

  

  8. 
  Calcinus 
  tibicen 
  (Herhst). 
  

  

  Mozambique, 
  between 
  tide-marks 
  (No. 
  225) 
  ; 
  a 
  female. 
  

  

  X. 
  specimen 
  from 
  the 
  same 
  locality 
  was 
  presented 
  to 
  the 
  British 
  

   Museum 
  by 
  the 
  late 
  Dr. 
  Livingstone. 
  Specimens 
  are 
  in 
  the 
  Museum 
  

   collection 
  from 
  llodriguez 
  (//. 
  H. 
  Slater) 
  ; 
  Madagascar, 
  Tamatave 
  

   (Bev. 
  B. 
  Cotvan) 
  ; 
  Keeling 
  or 
  Cocos 
  Islands 
  {Lieut. 
  Burnahy) 
  ; 
  Pelew 
  

   Islands 
  {Br. 
  G. 
  L. 
  Kincj) 
  ; 
  and 
  Sandwich 
  Islands 
  ( 
  TF. 
  //. 
  Pease) 
  ; 
  

   besides 
  a 
  series 
  of 
  specimens 
  from 
  the 
  ' 
  Herald 
  ' 
  collection 
  without 
  

   locality. 
  

  

  9. 
  Petrolistlies 
  lamarckii 
  {Leach). 
  

  

  Darros 
  Island, 
  beach 
  (No. 
  200) 
  ; 
  an 
  adult 
  male 
  and 
  female. 
  

  

  These 
  specimens 
  present 
  the 
  distinctive 
  characters 
  of 
  the 
  species 
  

   referred 
  to 
  in 
  tlie 
  preceding 
  part 
  of 
  this 
  Report 
  (p. 
  268). 
  The 
  body 
  

   (in 
  spirit) 
  is 
  of 
  a 
  reddish 
  colour, 
  punctulated 
  with 
  yellow 
  ; 
  the 
  

   carpus 
  and 
  penultimate 
  joints 
  of 
  the 
  first 
  and 
  second 
  ambulatory 
  

   legs 
  alternately 
  banded 
  with 
  yellow 
  and 
  red. 
  In 
  some 
  specimens 
  

   from 
  Ceylon 
  {Br. 
  W. 
  Ondaatje) 
  the 
  yellowish 
  colour 
  predominates, 
  

   as 
  in 
  the 
  following 
  variety. 
  

  

  10. 
  Petrolisthes 
  lamarckii, 
  var. 
  asiaticus, 
  LeacJi. 
  

  

  Of 
  this 
  variety, 
  if 
  it 
  can 
  be 
  so 
  styled, 
  three 
  specimens 
  were 
  col- 
  

   lected 
  with 
  the 
  typical 
  P. 
  lamarckii 
  at 
  Darros 
  Island. 
  In 
  these 
  

   specimens, 
  and 
  in 
  almost 
  all 
  I 
  have 
  examined, 
  except 
  Leach's 
  type, 
  

   from 
  the 
  Mauritius, 
  a 
  longitudinal 
  purplish 
  line 
  exists 
  on 
  the 
  upper 
  

   surface 
  of 
  the 
  palms 
  of 
  the 
  chelipedes, 
  and 
  the 
  outer 
  (or 
  posterior) 
  

   margin 
  of 
  the 
  palm 
  and 
  mobile 
  finger 
  is 
  marked 
  with 
  a 
  series 
  of 
  

  

  * 
  Sitz. 
  Akad. 
  Wissenscli. 
  Birliii, 
  xliv. 
  (1) 
  p. 
  244, 
  pi. 
  i. 
  fig. 
  1, 
  and 
  ul 
  ii 
  Am 
  

   2, 
  3 
  (18(52). 
  ■ 
  ^ 
  ■ 
  

  

  