﻿198 
  COLLECTIONS 
  FROM 
  MELANESIA. 
  

  

  fms. 
  (Nos. 
  16o-17o). 
  In 
  the 
  female 
  the 
  gastric 
  region 
  is 
  less 
  

   convex 
  than 
  in 
  the 
  type 
  specimens, 
  which 
  are 
  from 
  W. 
  Australia, 
  

   Shark 
  Bay. 
  

  

  Microludimus 
  dejfcrifrons, 
  Haswell 
  {t. 
  c. 
  p. 
  435, 
  pi. 
  xxv. 
  fig. 
  2, 
  

   and 
  Catalogue, 
  p. 
  7, 
  1882), 
  from 
  Port 
  Jackson, 
  is 
  very 
  nearly 
  allied 
  

   to 
  this 
  species, 
  and 
  may 
  only 
  be 
  a 
  variety 
  of 
  it 
  ; 
  it 
  differs, 
  however, 
  

   in 
  the 
  less 
  hairy 
  carapace 
  with 
  fewer 
  tubercles 
  and 
  somewhat 
  more 
  

   robust 
  ambulatory 
  legs, 
  also 
  in 
  having 
  a 
  spine 
  at 
  the 
  antero-extcrnal 
  

   angle 
  of 
  the 
  basal 
  antennal 
  joint 
  (in 
  P. 
  varians 
  there 
  is 
  only 
  a 
  

   small 
  tooth). 
  

  

  In 
  mj 
  original 
  notice 
  of 
  this 
  species, 
  I 
  merely 
  pointed 
  out 
  the 
  

   diagnostic 
  characters 
  distinguishing 
  it 
  from 
  P. 
  tenuipes, 
  A. 
  M.- 
  

   Edwards, 
  which 
  it 
  closely 
  resembles, 
  on 
  which 
  account 
  perhaps 
  

   Mr. 
  Haswell 
  may 
  have 
  omitted 
  to 
  note 
  the 
  affinity 
  of 
  his 
  Micro- 
  

   halimus 
  cljiexifrons 
  with 
  both. 
  The 
  diagnosis 
  of 
  the 
  genus 
  3Iicro- 
  

   hnliinus 
  given 
  by 
  Mr. 
  Haswell 
  is 
  scarcely 
  sufficient 
  for 
  its 
  proper 
  

   identification. 
  

  

  18. 
  Micippa 
  thalia. 
  

  

  Cancer 
  tlialia, 
  Herhat, 
  Naturg. 
  Krahhen 
  u. 
  Krebse, 
  iii. 
  Heft 
  3, 
  p. 
  50, 
  

  

  pi. 
  Iviii. 
  fig. 
  3 
  (1803). 
  

   Paramicippa 
  sexspinigera, 
  White, 
  List 
  Crust. 
  Brit. 
  3Ius. 
  p. 
  9 
  (1847). 
  

   Micippa 
  thalia, 
  Gerstdcker, 
  Arch. 
  f. 
  Naturg. 
  xxii. 
  p. 
  109 
  (1856) 
  ; 
  

  

  Alph. 
  M.-Edtoards, 
  Nouv. 
  Archiv. 
  Mas. 
  Hist. 
  Nat. 
  viii. 
  p. 
  238, 
  

  

  _pl. 
  vi. 
  fig. 
  1 
  (1872). 
  

   Micippa 
  thalia, 
  var. 
  caledonica, 
  Kossmann, 
  Zool. 
  Ergehn. 
  roth. 
  Meer, 
  

  

  Crust, 
  p. 
  8, 
  pi. 
  iii. 
  tig. 
  4 
  (1877). 
  

   Micippa 
  inermis, 
  HasiveU, 
  Pr. 
  Linn. 
  Soc. 
  N. 
  S. 
  Wales, 
  iv. 
  p. 
  445, 
  

  

  pi. 
  xxvi. 
  fig. 
  3 
  (1880) 
  ; 
  Cat. 
  Austr. 
  Crust, 
  p. 
  24 
  (1882). 
  

  

  A 
  single 
  female 
  in 
  the 
  first 
  collection, 
  from 
  Port 
  Denison, 
  4 
  fms. 
  

   (No. 
  Ill), 
  is 
  apparently 
  to 
  be 
  referred 
  to 
  this 
  species 
  ; 
  it 
  is 
  of 
  small 
  

   size 
  and 
  densely 
  pubescent. 
  In 
  the 
  second 
  collection 
  is 
  an 
  adult 
  

   female 
  from 
  Thursday 
  Island, 
  3-4 
  fms. 
  (No. 
  175). 
  Specimens 
  are 
  in 
  

   the 
  British-Museum 
  collection 
  from 
  Swan 
  Eiver 
  (Drinff), 
  designated 
  

   by 
  White 
  P. 
  sexspinigera, 
  and 
  from 
  Pa-tchu-san 
  (H.M.S. 
  ' 
  Sama- 
  

   rang')\ 
  they 
  vary 
  somewhat 
  in 
  the 
  length 
  of 
  the 
  spines 
  of 
  the 
  

   dorsal 
  surface 
  of 
  the 
  carapace. 
  

  

  Micippa 
  inermis, 
  Haswell, 
  from 
  Gloucester 
  Passage, 
  Queensland, 
  

   and 
  Port 
  Denison 
  (H.M.S. 
  ^ 
  Alert 
  '), 
  scarcely 
  differs 
  except 
  in 
  the 
  

   uniformly 
  tuberculated 
  carapace, 
  and 
  must, 
  I 
  think, 
  be 
  united 
  with 
  

   31. 
  thalia. 
  

  

  19. 
  Micippa 
  philyra 
  {Herhst). 
  

  

  A 
  male 
  and 
  female 
  from 
  Thursday 
  Island, 
  3-4 
  fms. 
  (No. 
  175), 
  

   and 
  another 
  male 
  and 
  female 
  from 
  the 
  same 
  locality 
  and 
  depth, 
  but 
  

   larger, 
  in 
  the 
  second 
  collection, 
  are 
  referred 
  here. 
  

  

  There 
  are 
  specimens 
  in 
  the 
  British-Museum 
  collection 
  dredged 
  

   between 
  Percy 
  Islands 
  and 
  the 
  mainland 
  in 
  7 
  fms. 
  {J. 
  MacgiUivray 
  , 
  

   H.M.S. 
  ' 
  Rattlesnake 
  ') 
  ; 
  Torres 
  Straits 
  {J. 
  B. 
  Jakes) 
  ; 
  W. 
  xiustralia, 
  

   3hark 
  Bay 
  (Eayner, 
  H.M.S. 
  ' 
  Herald 
  ') 
  ; 
  Philippine 
  Islands, 
  Gui- 
  

  

  