﻿290 
  COLLECTIONS 
  FEOM 
  MELANESIA. 
  

  

  Two 
  females 
  were 
  obtained 
  at 
  Albanj- 
  Island, 
  3-4 
  fms., 
  whence 
  

   also 
  it 
  is 
  recorded 
  by 
  Mr. 
  Haswell, 
  and 
  a 
  small 
  male 
  at 
  Warrior 
  

   Reef 
  (first 
  collection) 
  ; 
  also 
  an 
  adult 
  male 
  from 
  Prince 
  of 
  Wales 
  

   Channel, 
  7-9 
  fms., 
  and 
  three 
  from 
  Thursday 
  Island, 
  4-5 
  fms. 
  (No. 
  165), 
  

   from 
  the 
  second 
  collection. 
  

  

  Specimens 
  are 
  in 
  the 
  British-Museum 
  collection 
  from 
  Ceylon 
  

   (£'. 
  W. 
  H. 
  HoldswortJi), 
  and 
  I 
  have 
  also 
  seen 
  examples 
  from 
  Singa- 
  

   pore 
  (in 
  the 
  collection 
  of 
  A. 
  0. 
  Walker, 
  Esq.). 
  

  

  The 
  remarkable 
  development 
  of 
  the 
  rostrum 
  and 
  orbital 
  spines 
  

   and 
  the 
  form 
  of 
  the 
  antennal 
  scale 
  serve 
  to 
  distinguish 
  this 
  species. 
  

  

  According 
  to 
  Mr. 
  Haswell 
  (Cat. 
  p. 
  180), 
  Avhose 
  description 
  of 
  

   this 
  and 
  several 
  other 
  of 
  his 
  new 
  species 
  was 
  based 
  on 
  specimens 
  

   obtained 
  by 
  H.M.S. 
  ' 
  Alert,' 
  it 
  is 
  invariably 
  found 
  clinging 
  to 
  the 
  

   arms 
  of 
  a 
  species 
  of 
  Comatulid, 
  to 
  which 
  its 
  markings 
  give 
  it 
  a 
  

   general 
  resemblance. 
  The 
  carapace 
  is 
  marked 
  with 
  loiigitudinal 
  

   stripes 
  of 
  brownish 
  purple, 
  with 
  a 
  narrow 
  median 
  white 
  line, 
  which 
  

   is 
  continued 
  on 
  the 
  first 
  two 
  postabdominal 
  segments 
  ; 
  at 
  the 
  sides 
  

   are 
  three 
  short 
  white 
  markings, 
  the 
  abdomen 
  has 
  broad 
  brownish- 
  

   purple 
  and 
  narrow 
  white 
  lines, 
  bases 
  of 
  antennas 
  purple, 
  longitudinal 
  

   stripes 
  of 
  purple 
  on 
  the 
  ambulatory 
  legs 
  ; 
  large 
  hand 
  marked 
  with 
  

   longitudinal 
  lines 
  of 
  light 
  brown, 
  bordered 
  by 
  narrow 
  darker 
  

   bands. 
  

  

  10. 
  Alpheus 
  villosus, 
  M.-Edw. 
  

  

  An 
  adult 
  example 
  is 
  in 
  the 
  collection 
  from 
  Warrior 
  Reef 
  (first 
  

   collection), 
  and 
  two 
  specimens 
  (one 
  of 
  small 
  size) 
  from 
  Thursday 
  

   Island, 
  3-4 
  fms. 
  (No. 
  177), 
  in 
  the 
  second 
  collection. 
  

  

  A 
  female 
  with 
  ova 
  from 
  the 
  Australian 
  coast 
  (without 
  special 
  

   indication 
  of 
  locality) 
  is 
  in 
  the 
  Museum 
  from 
  the 
  collection 
  of 
  Dr. 
  

   J. 
  S. 
  Bowerbank. 
  

  

  To 
  the 
  characters 
  given 
  by 
  Milne-Edwards 
  I 
  may 
  add 
  that 
  there 
  

   exists 
  a 
  small 
  spinule 
  on 
  the 
  outer 
  margin 
  of 
  the 
  first 
  exposed 
  joint 
  

   of 
  the 
  antennulary 
  peduncles. 
  The 
  larger 
  chela 
  is 
  vertically 
  very 
  

   deep 
  at 
  its 
  base, 
  but 
  narrows 
  towards 
  the 
  fingers 
  ; 
  the 
  smaller 
  one 
  

   is 
  pubescent, 
  but 
  without 
  sulci 
  or 
  spiuules 
  ; 
  the 
  fingers 
  quite 
  as 
  

   long 
  as 
  the 
  palm. 
  

  

  11. 
  Pontonia 
  (Conchodytes) 
  tridacnae, 
  Peters. 
  

  

  A 
  large 
  series 
  of 
  specimens 
  was 
  obtained 
  at 
  Warrior 
  Reef, 
  at 
  

   from 
  10-16 
  fms. 
  (No. 
  137), 
  together 
  with 
  specimens 
  of 
  Pinnotheres 
  

   viUosuTus, 
  which 
  inhabited 
  " 
  pearl-shells 
  ;"• 
  whether 
  the 
  Pontonia 
  

   tridacncv 
  had 
  the 
  same 
  habitat 
  is 
  stated 
  to 
  be 
  uncertain. 
  By 
  far 
  the 
  

   greater 
  number 
  of 
  the 
  specimens 
  collected 
  were 
  females 
  with 
  ova. 
  

   In 
  the 
  full-sized 
  examples 
  the 
  second 
  pair 
  of 
  legs 
  are 
  very 
  much 
  

   larger 
  and 
  more 
  robust 
  than 
  in 
  the 
  specimen 
  figured 
  by 
  Dana 
  (the 
  

   only 
  one 
  he 
  had 
  seen), 
  having 
  the 
  palm 
  robust 
  and 
  elongated, 
  

   rounded 
  above 
  and 
  below, 
  and 
  the 
  fingers 
  loss 
  than 
  half 
  the 
  length 
  

   of 
  the 
  palm, 
  the 
  mobile 
  finger 
  strongly 
  carinated 
  above, 
  with 
  a 
  tooth 
  

  

  