﻿202 
  COLLECTIONS 
  FROM 
  MELANESIA. 
  

  

  branchial 
  regions 
  ; 
  the 
  margins 
  of 
  the 
  rostrum 
  are, 
  however, 
  

   minutely 
  denticulated, 
  and 
  the 
  eyes 
  do 
  not 
  project 
  so 
  much 
  beyond 
  

   the 
  orbits 
  as 
  in 
  the 
  latter-mentioned 
  variety. 
  There 
  can 
  be 
  no 
  doubt 
  

   that 
  the 
  two 
  i^ass 
  into 
  one 
  another 
  by 
  insensible 
  gradations. 
  

  

  The 
  range 
  of 
  L. 
  hopUnotus 
  (so 
  far 
  as 
  ascertained) 
  is 
  from 
  Ceylon 
  

   eastward, 
  through 
  the 
  Philippine 
  Islands 
  to 
  the 
  N.E. 
  coast 
  of 
  Aus- 
  

   tralia, 
  whence 
  Mr. 
  Has 
  well 
  records 
  it 
  from 
  Daruley 
  Island, 
  Cape 
  

   Grenville, 
  and 
  Port 
  Denison 
  ; 
  also 
  from 
  Albany 
  Island 
  and 
  Port 
  

   MoUe 
  {H.M.S. 
  ' 
  Alert 
  '). 
  

  

  M. 
  A. 
  Milne-Edwards 
  mentions 
  its 
  occurrence 
  at 
  New 
  Caledonia. 
  

  

  28. 
  Lambrus 
  (Parthenopoides) 
  harpax. 
  

  

  Lambrus 
  harpax, 
  Ad. 
  Sf 
  White, 
  Zool. 
  ' 
  Smnarany,^ 
  Crust, 
  p. 
  25, 
  pi. 
  vi. 
  

  

  fig. 
  3 
  (1848) 
  ; 
  Huswell, 
  Proc. 
  Linn. 
  Soc. 
  N. 
  S. 
  Wales, 
  iv, 
  p. 
  450 
  

  

  (1880) 
  ; 
  Cat. 
  Austr. 
  Crust, 
  p. 
  32 
  (1882). 
  

   ? 
  Lambrus 
  (Partbenope) 
  sandrockii, 
  Hasioell, 
  t. 
  c. 
  p. 
  452, 
  pi. 
  xxvii. 
  

  

  fig. 
  2 
  (1880) 
  ; 
  Cat. 
  p. 
  30 
  (1882), 
  var. 
  

  

  An 
  adult 
  female 
  bearing 
  numerous 
  ova 
  is 
  in 
  the 
  first 
  collection 
  

   from 
  Thursday 
  Island, 
  Torres 
  Straits 
  (No. 
  130), 
  and 
  a 
  small 
  and 
  

   imperfect 
  male 
  from 
  Port 
  MoUe 
  (No. 
  93) 
  ; 
  also 
  an 
  adult 
  and 
  a 
  smaller 
  

   male 
  from 
  Thursday 
  Island, 
  3-4 
  fms. 
  (No. 
  177) 
  (second 
  collection). 
  

  

  Mr. 
  Haswell 
  mentions 
  the 
  occurrence 
  of 
  this 
  species 
  at 
  Albany 
  

   Passage 
  {H.M.S. 
  ' 
  Alert 
  '). 
  

  

  In 
  the 
  adult 
  specimens 
  the 
  depressions 
  separating 
  the 
  branchial 
  

   from 
  the 
  gastric 
  ar^d 
  cardiac 
  regions 
  are 
  Avide 
  and 
  deep, 
  and 
  these 
  

   regions 
  are 
  convex 
  and 
  covered 
  with 
  low 
  tubercles 
  ; 
  there 
  is 
  a 
  deep 
  con- 
  

   cavity 
  ou 
  the 
  postfrontal 
  region 
  ; 
  the 
  front 
  itself 
  is 
  almost 
  vertically 
  

   deflexed 
  ; 
  the 
  margins 
  of 
  the 
  carapace 
  are 
  armed 
  with 
  about 
  a 
  dozen 
  

   oblong 
  laminate 
  teeth, 
  which 
  increase 
  in 
  size 
  towards 
  the 
  postero- 
  

   lateral 
  angles, 
  and 
  whose 
  margins 
  are 
  themselves 
  crenulated 
  ; 
  tbe 
  

   postero-lateral 
  marginal 
  spines 
  are 
  large 
  and 
  laciniated 
  (i. 
  e. 
  each 
  

   bearing 
  two 
  or 
  three 
  smaller 
  lateral 
  spines 
  or 
  teeth). 
  The 
  chelipedes 
  

   are 
  robust 
  and 
  more 
  or 
  less 
  tubcrculated 
  ; 
  arm 
  strongly 
  dentate 
  on 
  

   its 
  anterior 
  margin 
  and 
  with 
  two 
  or 
  three 
  spines 
  on 
  its 
  posterior 
  

   margin. 
  Palm 
  with 
  a 
  curved 
  longitudinal 
  series 
  of 
  larger 
  rounded 
  

   tubercles 
  on 
  its 
  inner 
  surface 
  ; 
  the 
  tubercles 
  on 
  its 
  outer 
  suiface 
  also 
  

   showing 
  a 
  disposition 
  to 
  arrangement 
  in 
  longitudinal 
  series 
  ; 
  its 
  in- 
  

   ferior 
  margin 
  thin-edged 
  and 
  granulated. 
  Pingers 
  dentated 
  on 
  their 
  

   inner 
  margins, 
  upper 
  finger 
  with 
  a 
  high 
  dentated 
  crest. 
  Ambulatory 
  

   legs 
  compressed 
  ; 
  third, 
  fourth, 
  and 
  fifth 
  joints 
  somewhat 
  cristated 
  

   above 
  ; 
  in 
  the 
  last 
  pair 
  the 
  crests 
  are 
  more 
  elevated 
  and 
  interrupted, 
  

   and 
  there 
  are 
  two 
  or 
  three 
  spines 
  on 
  the 
  lower 
  margins 
  of 
  these 
  

   joints. 
  Length 
  of 
  the 
  largest 
  specimen 
  (female) 
  about 
  1 
  inch 
  2 
  

   lines 
  (30 
  miUim.), 
  and 
  greatest 
  breadth 
  (not 
  including 
  lateral 
  bran- 
  

   chial 
  spines) 
  about 
  1 
  inch 
  1 
  line 
  (28 
  millim.). 
  

  

  The 
  above 
  description, 
  although 
  not 
  exhaustive, 
  will 
  suffice 
  (when 
  

   compared 
  with 
  that 
  given 
  by 
  Adams 
  and 
  White 
  in 
  their 
  work 
  above 
  

   cited) 
  to 
  indicate 
  tbe 
  manifold 
  differences 
  between 
  what 
  I 
  regard 
  

   as 
  the 
  adult 
  and 
  young 
  of 
  this 
  species. 
  A 
  specimen 
  marked 
  as 
  the 
  

  

  