﻿CRirSTACEA. 
  207 
  

  

  nearly 
  as 
  in 
  H. 
  sculptvs. 
  The 
  ambulatory 
  legs 
  are 
  slender, 
  with 
  

   the 
  penultimate 
  and 
  antepenultimate 
  joints 
  rugose 
  and 
  pitted. 
  The 
  

   colour 
  (in 
  a 
  spirit-specimen) 
  is 
  reddish 
  iipon 
  a 
  yellowish 
  ground. 
  

   Length 
  of 
  carapace 
  8| 
  lines 
  (18 
  millim.), 
  bi'eadth 
  about 
  1 
  inch 
  

   (25 
  millim.). 
  

  

  A 
  single 
  male 
  was 
  obtained 
  at 
  Thursday 
  Island, 
  3-4 
  fms. 
  

   (No. 
  175). 
  

  

  It 
  may 
  be 
  at 
  once 
  distinguished 
  from 
  Hi/pocoelus 
  sculptvs 
  (]\I.- 
  

   Edwards) 
  and 
  H. 
  f/ranulatus 
  (De 
  Haan) 
  by 
  the 
  crest 
  or 
  ridge 
  

   dividing 
  the 
  cavities 
  of 
  the 
  pterygostomian 
  regions 
  (fig. 
  b). 
  

  

  The 
  species 
  of 
  this 
  curious 
  genus 
  appear 
  to 
  be 
  rare. 
  I 
  have 
  seen 
  

   no 
  specimens 
  of 
  H. 
  punctatus 
  except 
  the 
  unique 
  type 
  example. 
  Of 
  

   H. 
  scidptus 
  there 
  are 
  in 
  the 
  Museum 
  three 
  specimens 
  — 
  one 
  from 
  

   the 
  Red 
  Sea 
  (,/. 
  Burton), 
  one 
  from 
  the 
  Gulf 
  of 
  Suez 
  (R. 
  MacAiidreiv), 
  

   and 
  one 
  from 
  the 
  Mauritius. 
  Of 
  IT. 
  r/ranulatus 
  there 
  is 
  but 
  one 
  

   specimen, 
  a 
  mutilated 
  male 
  without 
  indication 
  of 
  locality, 
  in 
  the 
  

   national 
  collection. 
  

  

  35. 
  Atergatis 
  floridus 
  (Linn.). 
  

  

  Of 
  this 
  very 
  common 
  and 
  widely 
  distributed 
  species 
  five 
  specimens 
  

   (males 
  and 
  females), 
  obtained 
  on 
  a 
  coral-reef 
  at 
  the 
  Clairmont 
  

   Islands, 
  N.E. 
  coast 
  of 
  Australia 
  (No. 
  151), 
  are 
  retained 
  for 
  the 
  British 
  

   Museum. 
  

  

  Specimens 
  are 
  in 
  the 
  national 
  collection 
  from 
  Port 
  Essington, 
  

   Trinity 
  Bay 
  (J. 
  MacgilUvray, 
  H.M.S. 
  ' 
  Rattlesnake 
  '), 
  and 
  Swan 
  

   River 
  {H. 
  Drhir/) 
  ; 
  also 
  from 
  Port 
  Natal 
  (purchased), 
  and 
  from 
  

   the 
  Philippine 
  Islands, 
  Guimaras 
  (H. 
  Cuming) 
  ; 
  Java, 
  Karang- 
  

   bollong, 
  and 
  Amboina 
  (Dr. 
  P. 
  Bleeker) 
  ; 
  Indian 
  Ocean 
  {Old 
  

   Collection) 
  ; 
  Ceylon, 
  Galle 
  (Dr. 
  W. 
  Ondaatje) 
  ; 
  Duke 
  of 
  York 
  

   Island 
  (Eev. 
  G. 
  Brown) 
  ; 
  Sunday 
  Island 
  (J. 
  B. 
  Jukes) 
  ; 
  Minerva 
  

   Reef 
  (H.3I.S. 
  'Herald'); 
  Fiji 
  Islands, 
  Ovalau, 
  Totoya 
  (H.M.S. 
  

   ' 
  Hercdd') 
  ; 
  Samoa 
  Islands, 
  Upolu 
  (Rev. 
  S. 
  J. 
  Whitm.ee) 
  ; 
  and 
  others 
  

   with 
  less 
  definite 
  indication 
  of 
  locality. 
  

  

  36. 
  Lophozozymus 
  epheliticus 
  (Linn.). 
  

  

  Port 
  MoUe 
  (No. 
  95). 
  A 
  small 
  male, 
  having 
  the 
  beautiful 
  colora- 
  

   tion 
  usual 
  in 
  this 
  common 
  species, 
  was 
  obtained 
  on 
  the 
  beach. 
  

  

  Mr. 
  Haswell 
  mentions 
  its 
  occurrence 
  at 
  Cape 
  Grenville 
  (as 
  L. 
  octo- 
  

   dentatus). 
  

  

  Specimens 
  are 
  in 
  the 
  collection 
  of 
  the 
  British 
  Museum 
  from 
  New 
  

   South 
  Wales 
  (G. 
  Krefft); 
  Darnley 
  Island 
  (J. 
  B. 
  Juhs); 
  Nicol 
  

   Bay, 
  N.W. 
  Australia 
  (Mr. 
  Du 
  Botday) 
  ; 
  Philippine 
  Islands 
  ( 
  C'^mm*/) 
  ; 
  

   Java 
  (Bleeker 
  Collection) 
  ; 
  and 
  others 
  without 
  definite 
  locality. 
  

  

  The 
  coloration, 
  both 
  in 
  dry 
  and 
  spirit 
  specimens, 
  is 
  variable 
  ; 
  

   ordinarily 
  carapace 
  and 
  legs 
  are 
  crimson 
  or 
  orange-red 
  with 
  white 
  

   spots, 
  but 
  sometimes 
  the 
  white 
  grently 
  predominates, 
  and 
  the 
  red 
  

   forms 
  irregular 
  patches 
  and 
  reticulating 
  lines. 
  

  

  