﻿CRUSTACEA. 
  209 
  

  

  usual, 
  nearly 
  quadrate, 
  with 
  the 
  anterior 
  margin 
  straight, 
  and 
  has 
  

   the 
  next 
  joint 
  articulated 
  with 
  it 
  at 
  its 
  antero-internal 
  angle. 
  The 
  

   chelipedes 
  are 
  subequal 
  and 
  moderately 
  robust 
  ; 
  the 
  merus 
  or 
  arm 
  

   short, 
  trigonous, 
  its 
  upper 
  margin 
  distally 
  armed 
  with 
  three 
  or 
  four 
  

   teeth 
  ; 
  carpus 
  or 
  wrist 
  very 
  distinctly 
  tuberculated 
  on 
  its 
  upper 
  and 
  

   outer 
  surface 
  ; 
  palm 
  with 
  only 
  three 
  or 
  four 
  tubercles 
  appearing 
  

   through 
  the 
  pubescence 
  at 
  base 
  ; 
  fingers 
  little 
  shorter 
  than 
  the 
  palm, 
  

   pubescent, 
  except 
  at 
  and 
  near 
  the 
  tips, 
  which 
  are 
  acute, 
  regularly 
  

   denticulated, 
  and 
  closing 
  along 
  their 
  inner 
  margins. 
  The 
  ambula- 
  

   tory 
  legs 
  are 
  slender, 
  rather 
  long, 
  and 
  densely 
  pubescent 
  ; 
  the 
  merus- 
  

   joints 
  have 
  a 
  tubercle 
  at 
  their 
  distal, 
  and 
  the 
  carpus-joints 
  one 
  at 
  

   their 
  proximal 
  ends. 
  Colour 
  cinereous 
  grey. 
  Length 
  of 
  the 
  single 
  

   specimen 
  examined 
  (a 
  female) 
  about 
  3g 
  lines 
  (nearly 
  8 
  millim.), 
  

   breadth 
  about 
  4^ 
  lines 
  (nearly 
  10 
  millim.). 
  

  

  This 
  specimen 
  was 
  dredged 
  in 
  the 
  Arafura 
  Sea, 
  at 
  a 
  depth 
  of 
  

   32-36 
  fms. 
  (No. 
  160). 
  

  

  In 
  the 
  structure 
  of 
  the 
  antennae 
  and 
  orbits 
  (see 
  fig. 
  h) 
  this 
  

   species 
  resembles 
  Euxanthus 
  and 
  Liagore, 
  but 
  the 
  form 
  of 
  the 
  

   strongly 
  tuberculated 
  and 
  densely 
  hairy 
  carapace 
  seems 
  to 
  preclude 
  

   its 
  being 
  assigned 
  to 
  either 
  of 
  these 
  genera. 
  In 
  these 
  particulars 
  and 
  

   in 
  the 
  slender 
  ambulatory 
  legs 
  it 
  more 
  closely 
  resembles 
  Halunede 
  

   fragifer, 
  De 
  Haan 
  ; 
  and 
  I 
  have 
  accordingly 
  assigned 
  it 
  to 
  the 
  genus 
  

   Haliiiiede, 
  although 
  with 
  some 
  uncertainty, 
  since 
  De 
  Haan 
  in 
  his 
  

   description 
  does 
  not 
  say 
  whether 
  the 
  basal 
  antennal 
  joint 
  enters 
  

   within 
  the 
  inner 
  orbital 
  hiatus 
  or 
  is 
  merely 
  in 
  contact 
  with 
  the 
  sub- 
  

   frontal 
  process 
  ; 
  if 
  the 
  latter, 
  our 
  new 
  species 
  will, 
  I 
  think, 
  have 
  to 
  

   be 
  made 
  the 
  type 
  of 
  a 
  new 
  generic 
  division, 
  

  

  39. 
  Actaea 
  rlippellii 
  (Kranss). 
  

  

  To 
  this 
  species 
  must, 
  I 
  think, 
  be 
  referred 
  a 
  small 
  and 
  very 
  hirsute 
  

   female 
  from 
  Port 
  Molle, 
  14 
  fms. 
  (No. 
  93), 
  and 
  a 
  somewhat 
  larger 
  

   female 
  with 
  very 
  prominent 
  and 
  distinctly 
  granulated 
  areolae 
  on 
  

   the 
  carapace, 
  obtained 
  at 
  Port 
  Denison, 
  4 
  fms. 
  (No. 
  122), 
  first 
  

   collection 
  ; 
  also 
  two 
  small 
  females 
  from 
  Thursday 
  Island, 
  3-4 
  fms. 
  

   (No. 
  177), 
  second 
  collection. 
  

  

  There 
  are 
  specimens 
  in 
  the 
  British-Museum 
  collection 
  from 
  the 
  

   Mauritius 
  {Old 
  Collection) 
  and 
  Malaysian 
  seas 
  (coll. 
  Dr. 
  Bleel-er); 
  

   perhaps 
  also 
  a 
  specimen 
  from 
  Norfolk 
  Island, 
  23 
  fms. 
  (H.M.S. 
  

   ' 
  Hercdd 
  '), 
  belongs 
  here. 
  

  

  I 
  have 
  already, 
  in 
  my 
  report 
  on 
  the 
  late 
  Dr. 
  Bleeker's 
  Malaysian 
  

   collection*, 
  given 
  the 
  leading 
  references 
  to 
  the 
  synonyma 
  of 
  Actcea 
  

   ruppellii. 
  

  

  40. 
  Actaea 
  areolata, 
  Dana"? 
  

  

  To 
  this 
  species 
  are 
  very 
  doubtfully 
  referred 
  several 
  specimens 
  of 
  

   both 
  sexes 
  from 
  Port 
  Molle, 
  obtained 
  either 
  on 
  the 
  beach 
  (Nos. 
  95, 
  

   103) 
  or 
  at 
  a 
  depth 
  of 
  14 
  fms. 
  (No. 
  93). 
  The 
  largest 
  example 
  mea- 
  

  

  * 
  Ann. 
  & 
  Mag. 
  Nat. 
  Hist. 
  ser. 
  5, 
  v. 
  p. 
  2.32 
  (1880). 
  

  

  P 
  

  

  