﻿CRUSTACEA. 
  189 
  

  

  frontal 
  lobes 
  very 
  small 
  and 
  subacute. 
  On 
  the 
  cardiac 
  region 
  is 
  a 
  

   bilobated 
  prominence, 
  which 
  is 
  usually 
  very 
  much 
  elevated 
  ; 
  there 
  

   is 
  a 
  small 
  angulated 
  prominence 
  on 
  the 
  hepatic 
  regions, 
  and 
  occa- 
  

   sionally 
  one 
  or 
  two 
  granules 
  on 
  the 
  branchial 
  regions, 
  which 
  are 
  

   not 
  at 
  all 
  convex. 
  Eye-peduncles 
  with 
  a 
  blunt 
  tubercle 
  in 
  the 
  

   middle 
  of 
  their 
  anterior 
  margins. 
  The 
  merus-joints 
  of 
  the 
  outer 
  

   maxillipedes 
  are 
  narrowed 
  and 
  subacute 
  at 
  their 
  distal 
  ends 
  where 
  

   they 
  are 
  articulated 
  with 
  the 
  next 
  joints. 
  The 
  chelipedes 
  (in 
  both 
  

   sexes) 
  are 
  rather 
  slender 
  ; 
  margins 
  of 
  the 
  arm, 
  wrist, 
  and 
  palm 
  

   usually 
  with 
  a 
  few 
  granules 
  or 
  spinules 
  ; 
  merus 
  somewhat 
  trigonous 
  ; 
  

   fingers 
  as 
  long 
  as 
  the 
  palm, 
  and 
  somewhat 
  incurved, 
  with 
  their 
  inner 
  

   margins 
  denticulated, 
  and 
  having 
  between 
  them 
  when 
  closed 
  (in 
  the 
  

   males) 
  a 
  small 
  hiatus 
  at 
  base. 
  The 
  ambulatory 
  legs 
  are 
  slender, 
  

   filiform, 
  and 
  very 
  much 
  elongated, 
  the 
  second 
  legs 
  being, 
  in 
  an 
  adult 
  

   male, 
  four 
  times 
  as 
  long 
  as 
  the 
  postfrontal 
  portion 
  of 
  the 
  carapace 
  ; 
  

   the 
  dactyli 
  of 
  the 
  two 
  posterior 
  pairs 
  only 
  are 
  distinctly 
  falciform 
  ; 
  

   both 
  chelipedes 
  and 
  ambulatory 
  legs 
  are 
  scantily 
  clothed 
  with 
  long 
  

   hairs. 
  Length 
  of 
  carapace 
  (including 
  rostrum) 
  of 
  an 
  adult 
  male 
  

   about 
  5 
  lines 
  (10-5 
  millim.), 
  breadth 
  about 
  3 
  lines 
  (6 
  millim.) 
  ; 
  

   length 
  of 
  second 
  leg 
  about 
  1 
  inch 
  8 
  lines 
  (42 
  millim.) 
  : 
  an 
  adult 
  

   female 
  has 
  the 
  carapace 
  relatively 
  somewhat 
  broader, 
  length 
  nearly 
  

   5| 
  lines 
  (12 
  millim.), 
  breadth 
  4 
  lines 
  {S'o 
  millim.). 
  

  

  The 
  bilobated 
  promiueuce 
  on 
  the 
  cardiac 
  region 
  and 
  tuberculated 
  

   e^e-peduncles 
  serve 
  to 
  distinguish 
  this 
  species. 
  The 
  cardiac 
  promi- 
  

   nence 
  is 
  much 
  more 
  elevated 
  in 
  the 
  females 
  than 
  in 
  the 
  males 
  in 
  the 
  

   Museum 
  Collection. 
  

  

  There 
  is 
  an 
  adult 
  male 
  of 
  this 
  species 
  in 
  the 
  first 
  collection 
  received 
  

   from 
  Dr. 
  Coppinger, 
  obtained 
  at 
  Port 
  Denison, 
  Queensland, 
  at 
  a 
  

   depth 
  of 
  4 
  fms. 
  (No. 
  Ill) 
  ; 
  also 
  an 
  adult 
  female 
  from 
  Port 
  Jackson, 
  

   5-7 
  fms. 
  (No. 
  104), 
  and 
  one 
  from 
  Moreton 
  Bay, 
  Queensland 
  

   ( 
  Warwick) 
  ; 
  one 
  from 
  Shark 
  Bay, 
  West 
  Australia 
  {F. 
  M. 
  liayner^ 
  

   H.M.S. 
  ' 
  Herald 
  ') 
  ; 
  and 
  other 
  Australian 
  specimens 
  without 
  special 
  

   indication 
  of 
  locality 
  in 
  the 
  Museum 
  collection. 
  

  

  In 
  the 
  second 
  consignment 
  made 
  by 
  Dr. 
  Coppinger 
  were 
  an 
  adult 
  

   male 
  and 
  two 
  females 
  from 
  Thursday 
  Island, 
  3-4 
  fms. 
  (No. 
  177) 
  ; 
  

   and 
  a 
  female 
  from 
  Prince 
  of 
  Wales 
  Channel, 
  7-9 
  fms. 
  

  

  3. 
  Camposcia 
  retusa, 
  Latreille. 
  

  

  Several 
  females 
  are 
  retained 
  for 
  the 
  British-Museum 
  collection 
  

   from 
  Thursday 
  Island, 
  3-4 
  fms. 
  (Nos. 
  175-177). 
  It 
  is 
  recorded 
  by 
  

   Mr. 
  Haswell 
  from 
  Cape 
  Grenville 
  and 
  Port 
  Denison. 
  Specimens 
  

   are 
  in 
  the 
  British-Museum 
  collection 
  from 
  Shark 
  Bay, 
  W. 
  Australia 
  

   {F. 
  M. 
  Baijner, 
  H.M.S. 
  ' 
  Herald 
  '). 
  

  

  There 
  are 
  also 
  specimens 
  in 
  the 
  Museum 
  collection 
  from 
  the 
  

   Philippine 
  Islands, 
  Guimaras 
  and 
  Bureas(CMmi?ir/), 
  and 
  Pijis, 
  Ngau 
  

   {H.M.S. 
  ' 
  Herald 
  ') 
  ; 
  also 
  specimens 
  from 
  the 
  Mauritius 
  {Ladij 
  F. 
  

   Cole) 
  are 
  probably 
  not 
  distinct, 
  but 
  are 
  much 
  covered 
  with 
  foreign 
  

   overgrowth. 
  Thus 
  it 
  is 
  widely 
  distributed 
  throughout 
  the 
  Oriental 
  

   Region. 
  

  

  