﻿236 
  COLLECTIONS 
  FEOM 
  MELAUESIA. 
  

  

  In 
  two 
  specimens 
  from 
  E. 
  Australia, 
  the 
  smaller 
  of 
  which 
  was 
  

   received 
  with 
  fishes 
  of 
  H.M.S. 
  ' 
  Challenger 
  ' 
  collection, 
  the 
  cara- 
  

   pace 
  is 
  coarsely 
  punctulated 
  in 
  front, 
  perfectly 
  smooth 
  ahove, 
  and 
  

   less 
  convex, 
  with 
  scarcely 
  any 
  traces 
  of 
  the 
  depressions 
  indicative 
  

   of 
  the 
  cervical 
  suture, 
  or 
  of 
  the 
  postfrontal 
  crest 
  and 
  lateral 
  teeth. 
  

   These 
  probably 
  belong 
  to 
  a 
  distinct 
  species 
  ; 
  the 
  larger 
  hav^e 
  been 
  

   designated 
  in 
  MS. 
  T. 
  leicliardti. 
  

  

  Specimens 
  are 
  in 
  the 
  British-Museum 
  collection 
  from 
  the 
  Philip- 
  

   pines, 
  R. 
  Naga 
  or 
  Bicol 
  {Caming), 
  which 
  belong 
  to 
  T. 
  crassa 
  or 
  to 
  

   a 
  closely 
  allied 
  sjjccies 
  ; 
  in 
  the 
  male 
  the 
  larger 
  chelipede 
  has 
  the 
  

   mobile 
  finger 
  arcuated, 
  both 
  are 
  rather 
  strongly 
  denticulated 
  on 
  

   their 
  inner 
  margins, 
  and 
  have 
  between 
  them, 
  when 
  closed, 
  a 
  wide 
  

   interspace. 
  These 
  specimens 
  were 
  designated 
  by 
  White 
  T. 
  ohesa 
  

   (in 
  manuscript) 
  ; 
  but 
  this 
  name 
  has 
  been 
  applied 
  by 
  Prof. 
  A. 
  Milne- 
  

   Edwards 
  to 
  a 
  very 
  nearly 
  allied 
  form 
  from 
  Zanzibar, 
  which 
  differs 
  

   apparently 
  only 
  in 
  having 
  an 
  even 
  more 
  distinct 
  postfrontal 
  crest, 
  

   and 
  yet 
  more 
  strongly 
  arcuated 
  and 
  dentated 
  fingers 
  to 
  the 
  larger 
  

   chelipede. 
  If 
  distinct, 
  the 
  Philippine 
  examples 
  may 
  be 
  designated 
  

   T. 
  cumingii. 
  

  

  It 
  is 
  worthy 
  of 
  note 
  that 
  although 
  Milne-Edwards 
  in 
  his 
  de- 
  

   scription 
  says 
  there 
  exists 
  no 
  postfrontal 
  crest 
  in 
  T. 
  crassa, 
  some 
  

   indications 
  of 
  one 
  appear 
  in 
  the 
  figure. 
  His 
  species 
  may, 
  however, 
  

   be 
  identical 
  with 
  the 
  one 
  here 
  designated 
  T. 
  leicliardti, 
  in 
  which 
  

   case 
  the 
  specimens 
  I 
  name 
  T. 
  crassa 
  must 
  receive 
  a 
  new 
  specific 
  

   appellation. 
  

  

  79. 
  Gelasimus 
  signatus, 
  Hess. 
  

  

  A 
  series 
  of 
  specimens 
  is 
  in 
  the 
  collection, 
  of 
  both 
  sexes 
  and 
  of 
  

   different 
  sizes, 
  from 
  Port 
  Curtis, 
  some 
  of 
  which 
  were 
  collected 
  at 
  

   7-11 
  fms. 
  (Xo. 
  85). 
  

  

  These 
  examples 
  agree 
  with 
  the 
  description 
  and 
  figure 
  of 
  Hess 
  * 
  in 
  

   nearly 
  every 
  particular, 
  and 
  there 
  can 
  be 
  no 
  doubt 
  of 
  their 
  identity 
  

   with 
  his 
  species 
  ; 
  but 
  the 
  margins 
  of 
  the 
  somewhat 
  triangular, 
  flat, 
  

   inferior 
  face 
  of 
  the 
  arm 
  are 
  minutely 
  granulated, 
  and 
  can 
  scarcely 
  

   be 
  described 
  as 
  furnished 
  " 
  with 
  two 
  rows 
  of 
  pearl-shaped 
  tubercles," 
  

   as 
  stated 
  by 
  Hess, 
  whose 
  specimens 
  were 
  from 
  Sydney. 
  

  

  There 
  are 
  in 
  the 
  collection 
  of 
  the 
  British 
  Museum 
  specimens 
  from 
  

   Swan 
  lliver 
  (Driiig), 
  which 
  I 
  regard 
  as 
  belonging 
  to 
  this 
  species. 
  

   In 
  the 
  largest, 
  the 
  tooth 
  or 
  lobe 
  of 
  the 
  middle 
  of 
  the 
  inner 
  margin 
  

   of 
  the 
  lower 
  finger, 
  which 
  is 
  generally 
  very 
  characteristic 
  of 
  this 
  

   species, 
  is 
  not 
  developed. 
  These 
  specimens 
  were 
  referred 
  by 
  my 
  pre- 
  

   decessor, 
  Mr. 
  Adam 
  White 
  *(■, 
  to 
  6r. 
  forceps, 
  M.-Edwards 
  ; 
  but 
  that 
  

   author 
  says 
  that 
  the 
  larger 
  chelipede 
  in 
  G. 
  forceps 
  is 
  smooth, 
  and 
  

   the 
  merus-joints 
  of 
  the 
  ambulatory 
  legs 
  appear 
  to 
  be 
  even 
  broader 
  

   and 
  more 
  dilated 
  than 
  in 
  G. 
  signatus. 
  

  

  1^0 
  specimens 
  had 
  been 
  seen 
  by 
  Mr. 
  Haswell 
  (who 
  regarded 
  the 
  

  

  * 
  Archiv 
  f. 
  Natiirgeschichte, 
  p. 
  146, 
  pi. 
  vi. 
  fig. 
  6 
  (1865). 
  

   t 
  List 
  Crust. 
  Brit. 
  Museum, 
  p. 
  36 
  (1847). 
  

  

  