﻿CETTSTACEA. 
  5G1 
  

  

  what 
  dilated, 
  and 
  vertically 
  flattened 
  and 
  compressed; 
  the 
  marf!;ins, 
  

   both 
  of 
  palm 
  and 
  fingers, 
  spinulose, 
  but 
  the 
  surface 
  smooth, 
  -without 
  

   spines. 
  But 
  one 
  ambulatory 
  leg 
  remains 
  attached 
  to 
  the 
  body 
  (on 
  

   the 
  left 
  side) 
  ; 
  this 
  is 
  rather 
  small 
  and 
  slender, 
  and 
  has 
  the 
  upper 
  

   margin 
  of 
  the 
  merus, 
  carpus, 
  and 
  penultimate 
  joints 
  spinulose, 
  the 
  

   dactyl 
  obscurely 
  denticulated 
  below. 
  Colour 
  light 
  brownish 
  pink 
  

   or 
  yellowish. 
  Length 
  of 
  the 
  body 
  to 
  end 
  of 
  rostrum 
  nearly 
  6 
  lines 
  

   (12millim.); 
  of 
  a 
  chelipede 
  about 
  6| 
  lines 
  (14 
  millim.). 
  

  

  The 
  single 
  specimen 
  (which 
  is, 
  I 
  think, 
  a 
  male) 
  was 
  obtained 
  at 
  

   He 
  des 
  Neufs, 
  15 
  fms. 
  (No. 
  187), 
  with 
  Galathea 
  spinosirostn's. 
  

  

  The 
  spinulation 
  of 
  the 
  carapace, 
  with 
  the 
  form 
  of 
  the 
  chelipedes, 
  

   distinguishes 
  it 
  from 
  all 
  the 
  species 
  with 
  which 
  I 
  am 
  acquainted. 
  

  

  The 
  presence 
  of 
  supraocular 
  spines 
  will 
  at 
  once 
  separate 
  it 
  from 
  

   the 
  Oriental 
  forms 
  Munida 
  gregaria 
  (Fabr.) 
  = 
  i/. 
  subna/osa, 
  Dana, 
  

   31. 
  japonica, 
  Stimpson, 
  and 
  also 
  from 
  M. 
  sj)inulifera, 
  described 
  at 
  

   p. 
  279 
  of 
  this 
  Keport. 
  

  

  MACRUIIA. 
  

  

  1. 
  Alpheus 
  olbesomanus, 
  Dana. 
  

  

  A 
  specimen 
  was 
  obtained 
  at 
  the 
  Seychelles, 
  4-12 
  fms. 
  (No. 
  194). 
  

   It 
  has 
  been 
  already 
  noticed 
  at 
  p. 
  2b7 
  of 
  this 
  Eeport. 
  

  

  2. 
  Alpheus 
  edwardsii 
  (Audouiii). 
  

  

  A 
  specimen, 
  in 
  which 
  the 
  smaller 
  chelipede 
  is 
  wanting, 
  was 
  ob- 
  

   tained 
  at 
  the 
  Seychelles, 
  4-12 
  fms. 
  (No. 
  194). 
  I 
  have 
  already 
  

   referred 
  to 
  the 
  distribution, 
  sexual 
  characteristics, 
  and 
  variability 
  of 
  

   this 
  species 
  at 
  p. 
  284 
  of 
  this 
  Report. 
  

  

  3. 
  Alpheus 
  laevis, 
  Bandall. 
  

  

  Of 
  this 
  widely 
  distributed 
  species 
  specimens 
  were 
  collected 
  at 
  the 
  

   Seychelles, 
  4-12 
  fms. 
  (No. 
  194); 
  African 
  or 
  Eagle 
  Island, 
  10 
  fms. 
  

   (No. 
  184) 
  ; 
  and 
  Etoile 
  Island, 
  13 
  fms. 
  (No. 
  191) 
  : 
  most 
  of 
  these 
  are 
  

   ova-bearing 
  females. 
  

  

  Specimens 
  are 
  in 
  the 
  British-Museum 
  collection 
  from 
  the 
  Red 
  Sea, 
  

   Gulf 
  of 
  Suez 
  {R. 
  MacAndrew); 
  Gulf 
  of 
  Akaba 
  {Major 
  Burton); 
  

   El 
  Tor 
  {Major 
  MacDonald); 
  Daedalus 
  Shoal 
  {Lt.-Gul. 
  Pkn/fair); 
  

   also 
  Eed-Sea 
  specimens 
  received 
  from 
  the 
  Godeffroy 
  Museum, 
  and 
  

   wrongly 
  designated 
  A. 
  tricuspid 
  atus. 
  Heller; 
  also 
  from 
  Rodriguez 
  

   {H. 
  U. 
  Slater) 
  ; 
  Ceylon, 
  Galle 
  {Br. 
  W. 
  Onduatje) 
  ; 
  Samoa 
  Islands 
  

   {Rev. 
  S. 
  J. 
  WJiitmee) 
  ; 
  and 
  Fiji 
  Islands, 
  Matuka 
  {HJI.S. 
  'Herald'). 
  

  

  There 
  is 
  in 
  the 
  collection 
  a 
  specimen 
  of 
  Alpheus 
  from 
  African 
  or 
  

   Eagle 
  Island, 
  10 
  fms. 
  (No. 
  184), 
  which 
  for 
  the 
  present 
  I 
  refrain 
  

   from 
  designating 
  by 
  a 
  distinct 
  specific 
  name. 
  It 
  is 
  evidently 
  very 
  

   nearly 
  allied 
  to 
  Alpheus 
  collumianus, 
  Stimpson*, 
  from 
  the 
  Bonin 
  

  

  * 
  Proc. 
  Acad. 
  Nat. 
  Sci. 
  riiilad. 
  p. 
  31 
  (1860). 
  

  

  2o 
  

  

  