﻿552 
  COLLECTIONS 
  FEOM 
  THE 
  WESTERN 
  INDIAN 
  OCEAN. 
  

  

  not 
  denticulated. 
  Ambulatory 
  legs 
  ■with 
  the 
  joints 
  unarmed 
  ; 
  the 
  

   mcrus-joints 
  in 
  the 
  third 
  and 
  fourth 
  pairs, 
  although 
  slightlj- 
  dilated, 
  

   much 
  less 
  so 
  than 
  in 
  C. 
  jul-esii, 
  nor 
  is 
  their 
  surface 
  tuberculated 
  

   and 
  their 
  margins 
  denticulated 
  as 
  in 
  that 
  species 
  ; 
  the 
  penultimate 
  

   joints 
  are 
  also 
  less 
  dilated, 
  the 
  dactyli 
  about 
  as 
  long 
  as 
  the 
  preceding 
  

   joints. 
  Colour 
  (in 
  spirit) 
  yellowish 
  or 
  whitish. 
  Length 
  of 
  carapace 
  

   of 
  the 
  largest 
  specimen 
  (a 
  female) 
  about 
  4 
  lines 
  (nearly 
  9 
  millim,), 
  

   length 
  of 
  leg 
  of 
  the 
  third 
  pair 
  about 
  8 
  lines 
  (17 
  millim.). 
  

  

  Seychelles, 
  4-12 
  fms. 
  (No. 
  194); 
  an 
  adult 
  and 
  smaller 
  female 
  

   and 
  two 
  small 
  males. 
  

  

  This 
  species 
  is 
  nearly 
  allied 
  to 
  C. 
  jul-esii, 
  White*, 
  from 
  Sir 
  C. 
  

   Hardy's 
  Island, 
  Australia, 
  from 
  which 
  it 
  is 
  distinguished 
  by 
  the 
  

   different 
  form 
  of 
  the 
  cristiform 
  lobe 
  of 
  the 
  ocular 
  peduncles, 
  and 
  the 
  

   much 
  less 
  dilated 
  and 
  non-denticulated 
  merus-joint 
  of 
  the 
  third 
  and 
  

   foiirth 
  ambulatory 
  legs. 
  Prom 
  C. 
  dmtata, 
  A. 
  Milne-Edwardsf, 
  

   from 
  the 
  West 
  Indies, 
  to 
  which 
  it 
  is 
  also 
  apparently 
  nearly 
  related, 
  

   it 
  is 
  distinguished 
  by 
  the 
  non-spinose 
  or 
  dentated 
  merus-joints 
  of 
  

   the 
  legs 
  and 
  by 
  the 
  smaller 
  chelipedes 
  of 
  the 
  male. 
  

  

  ANOMURA. 
  

  

  1 
  . 
  Dromidia 
  spongiosa, 
  Stimpson, 
  var. 
  ? 
  stimpsonii. 
  

   (Plate 
  L. 
  fig. 
  A.) 
  

  

  A 
  female 
  from 
  Mozambique, 
  obtained 
  between 
  tide-marks 
  (No, 
  

   224), 
  may 
  perhaps 
  bo 
  referred 
  to 
  this 
  species. 
  It 
  differs 
  from 
  

   Stimpson's 
  description 
  only 
  in 
  the 
  form 
  of 
  the 
  front, 
  which, 
  although 
  

   deeply 
  longitudinally 
  concave, 
  is 
  not 
  at 
  all 
  bicuspidate, 
  and 
  in 
  the 
  

   coloration, 
  which 
  (in 
  spirit) 
  is 
  brownish, 
  the 
  fingers 
  only 
  being 
  

   red. 
  This 
  character 
  and 
  also 
  the 
  absence 
  of 
  orbital 
  teeth 
  will 
  dis- 
  

   tinguish 
  this 
  species 
  from 
  the 
  Dromidia 
  ? 
  rotunda, 
  M'LeayJ, 
  also 
  

   from 
  the 
  Cape. 
  From 
  the 
  Dromidia 
  unidentata, 
  Iliippell, 
  which 
  

   Bianconi§ 
  records 
  from 
  Mozambique, 
  it 
  is 
  apparently 
  distinguished 
  

   by 
  the 
  much 
  shorter 
  pubescence 
  of 
  the 
  carapace 
  and 
  legs, 
  and 
  by 
  

   the 
  obsolescence 
  of 
  the 
  lateral 
  marginal 
  tooth, 
  as 
  well 
  as 
  by 
  the 
  non- 
  

   bicuspidate 
  front. 
  If 
  it 
  be 
  specifically 
  distinct, 
  I 
  would 
  propose 
  the 
  

   designation 
  D. 
  stimpsonii 
  for 
  this 
  form, 
  which 
  when 
  received 
  was 
  

   deeply 
  ensconced 
  in 
  a 
  species 
  of 
  tunicate 
  Ascidian. 
  

  

  A 
  very 
  small 
  male 
  is 
  in 
  the 
  collection 
  from 
  Poivre 
  Island 
  or 
  He 
  

   des 
  Roches, 
  whose 
  generic 
  position 
  (in 
  the 
  absence 
  of 
  specimens 
  of 
  

   the 
  female 
  sex) 
  must 
  remain 
  uncertain, 
  which 
  is 
  possibly 
  referable 
  

   to 
  the 
  D. 
  rotmida, 
  M'Leay. 
  As 
  in 
  that 
  species, 
  the 
  front 
  is 
  distinctly 
  

   bicuspidate, 
  and 
  there 
  is 
  a 
  tooth 
  above 
  the 
  inner 
  margin 
  of 
  the 
  

   orbit. 
  There 
  is 
  no 
  tooth, 
  but 
  only 
  a 
  slight 
  prominence, 
  behind 
  the 
  

   lateral 
  sutures 
  of 
  the 
  carapace. 
  The 
  body 
  and 
  legs 
  are 
  clothed 
  with 
  

  

  * 
  Appendix 
  to 
  Jukes's 
  Voyage 
  H.M.S. 
  ' 
  Fly,' 
  p. 
  338, 
  pi. 
  ii. 
  %. 
  1 
  (1847); 
  

   Miers, 
  Crust, 
  in 
  Zool. 
  ' 
  Erebus 
  ' 
  and 
  ' 
  Terror,' 
  p. 
  3, 
  pi. 
  ill. 
  figs. 
  4, 
  4« 
  (1874). 
  

   t 
  Bull. 
  Ivlus. 
  Comp. 
  Zool. 
  viii. 
  p. 
  28 
  (1880). 
  

   X 
  Anuulosain 
  Smith's 
  Zool. 
  S. 
  Africa, 
  p. 
  71 
  (1849). 
  

   § 
  Mem. 
  Accad. 
  Bologna, 
  eer. 
  2, 
  ix. 
  p. 
  207 
  (1869). 
  

  

  