﻿230 
  COLLECTIONS 
  FROM 
  MELANESIA. 
  

  

  smaller 
  specimens 
  from 
  the 
  Arafura 
  Sea, 
  32-36 
  fms. 
  (No. 
  160). 
  lu 
  

   these 
  latter 
  the 
  carapace 
  is 
  more 
  convex 
  and 
  the 
  spines 
  at 
  the 
  pos- 
  

   tei-o-lateral 
  angles 
  of 
  the 
  carapace 
  less 
  developed. 
  Although 
  

   smaller, 
  most 
  of 
  these 
  are 
  adult, 
  since 
  among 
  tliem 
  are 
  females 
  

   with 
  ova. 
  

  

  There 
  are 
  besides 
  in 
  the 
  British-Museum 
  collection 
  a 
  female 
  from 
  

   the 
  Indian 
  Ocean 
  {Gen. 
  Hardwiche), 
  several 
  specimens 
  from 
  Hong 
  

   Kong 
  {Dr. 
  W. 
  A. 
  Harland), 
  and 
  others, 
  without 
  definite 
  locality, 
  

   from 
  the 
  collections 
  of 
  H.M.SS. 
  ' 
  Herald' 
  and 
  ' 
  Samarang.' 
  

  

  68. 
  Achelous 
  granulatus 
  {M.-Edw.). 
  (Plate 
  XXIII, 
  

   fig. 
  B, 
  var.) 
  

  

  A 
  male 
  of 
  this 
  common 
  and 
  widely 
  distributed 
  species 
  is 
  in 
  the 
  

   collection 
  from 
  Fiiday 
  Island, 
  Torres 
  Straits, 
  13 
  fms. 
  (No. 
  153). 
  An 
  

   enumeration 
  of 
  the 
  localities 
  whence 
  the 
  Museiim 
  possesses 
  speci- 
  

   mens 
  is 
  given 
  in 
  my 
  Heport 
  on 
  the 
  Crustacea 
  collected 
  at 
  Rodriguez 
  

   by 
  the 
  naturalists 
  of 
  the 
  British 
  Transit-of-Venus 
  Expedition*, 
  to 
  

   which 
  should 
  be 
  added 
  the 
  following 
  : 
  — 
  Seychelles 
  (Dr. 
  E. 
  Perceval 
  

   Wrir/Jit), 
  and 
  Loyalty 
  Islands, 
  Lifu 
  {Rev. 
  S. 
  J. 
  Whitmee). 
  It 
  is 
  

   recorded 
  by 
  Mr. 
  Haswell 
  from 
  Palm 
  Island 
  (as 
  Amphitrite 
  gla- 
  

   diator). 
  

  

  A 
  specimen 
  from 
  Prince 
  of 
  Wales 
  Channel, 
  7 
  fms. 
  (No. 
  169), 
  

   differs 
  from 
  all 
  the 
  specimens 
  of 
  A. 
  granulatus 
  that 
  I 
  have 
  examined 
  

   in 
  wanting 
  the 
  submedian 
  spine 
  of 
  the 
  posterior 
  margin 
  of 
  the 
  arm 
  

   of 
  the 
  chelipedes 
  (see 
  Plate 
  XXIII. 
  fig. 
  B) 
  ; 
  it 
  may 
  be 
  designated 
  vat.. 
  

   unisjiinosus. 
  The 
  carapace 
  is 
  less 
  granulated 
  and 
  the 
  teeth 
  of 
  the 
  

   antero-lateral 
  margins 
  less 
  produced 
  and 
  spiniform 
  than 
  is 
  usual 
  in 
  

   this 
  species, 
  and 
  much 
  less 
  so 
  than 
  in 
  the 
  specimen 
  from 
  Friday 
  

   Island. 
  

  

  69. 
  Thalamita 
  admete 
  {Herhst). 
  

  

  Here 
  are 
  referred 
  a 
  small 
  female 
  from 
  Port 
  Molle, 
  5-12 
  fms. 
  

   (No. 
  118), 
  in 
  the 
  first 
  collection, 
  and 
  another 
  from 
  Port 
  Jackson, 
  

   5 
  fms., 
  and 
  five 
  males 
  (adult 
  and 
  young) 
  found 
  on 
  a 
  coral-reef 
  at 
  

   Clairmont 
  Islands, 
  N.E. 
  coast 
  of 
  Australia 
  (No. 
  151), 
  in 
  the 
  second 
  

   collection. 
  

  

  In 
  the 
  smaller 
  examples 
  of 
  this 
  species 
  the 
  minute 
  rudimentary 
  

   fourth 
  tooth 
  of 
  the 
  antero-lateral 
  margins 
  is 
  occasionally 
  deficient, 
  

   as 
  has 
  been 
  noted 
  by 
  A. 
  Milne-Edwards 
  in 
  Thalamita 
  savignyi. 
  

  

  Specimens 
  are 
  in 
  the 
  British-Museum 
  collection 
  from 
  Conway 
  

   Eeef 
  {H.M.S. 
  'Herald'), 
  and 
  also 
  from 
  the 
  Fiji 
  Islands 
  {H.M.S. 
  

   * 
  Herald'), 
  Samoa 
  Islands 
  {Rev. 
  S. 
  J. 
  Whitmee), 
  and 
  Sandwich 
  

   Islands 
  ( 
  W. 
  H. 
  Pease). 
  

  

  I 
  regard 
  the 
  Thalamita 
  savignyi 
  of 
  Prof. 
  A. 
  Milne-Edwards 
  f 
  as 
  

   probably 
  merely 
  a 
  variety 
  of 
  Th. 
  admete, 
  Herbst. 
  Specimens 
  appa- 
  

   rently 
  referable 
  to 
  this 
  variety 
  are 
  in 
  the 
  British-Museum 
  collection 
  

   from 
  the 
  Gulf 
  of 
  Suez 
  {R. 
  Mac 
  Andrew) 
  and 
  Nicol 
  Bay, 
  N.W. 
  Aus- 
  

  

  * 
  Phil. 
  Trans, 
  clxviii. 
  p. 
  488 
  (1879). 
  

  

  t 
  Arch, 
  du 
  Mus. 
  d'Hist. 
  Nat. 
  x. 
  p. 
  357 
  (1861). 
  

  

  