﻿CEITSTACEA. 
  563 
  

  

  cannot 
  be 
  given 
  ; 
  but 
  it 
  is 
  somewhat 
  smaller 
  than 
  adult 
  P. 
  tridamcp. 
  

   The 
  chelipede 
  of 
  the 
  second 
  pair 
  measures 
  about 
  7 
  lines 
  (15 
  millim.). 
  

  

  Two 
  specimens, 
  of 
  which 
  one 
  is 
  an 
  adult 
  female 
  with 
  ova, 
  were 
  

   obtained 
  at 
  the 
  Sej-chelles 
  (12 
  fms,), 
  where 
  they 
  inhabited 
  " 
  clamp 
  

   shells 
  " 
  (bivalves 
  ?). 
  

  

  They 
  arc 
  distinguished 
  from 
  all 
  the 
  species 
  with 
  which 
  I 
  am 
  

   acquainted, 
  excei)t 
  P. 
  imidens, 
  Kingsley, 
  by 
  the 
  extremely 
  short 
  

   rostrum, 
  which 
  is 
  not 
  laterally 
  compressed, 
  and 
  from 
  all 
  by 
  the 
  form 
  

   of 
  the 
  chelipcdes 
  of 
  the 
  second 
  pair. 
  From 
  the 
  species 
  of 
  Coralllo- 
  

   caris, 
  Stm. 
  {(Edipus, 
  Dana), 
  they 
  are 
  distinguished, 
  among 
  other 
  

   characters, 
  by 
  the 
  form 
  of 
  the 
  dactyli 
  of 
  the 
  ambulatory 
  legs. 
  

  

  In 
  P. 
  unidens, 
  Kingsley, 
  from 
  Florida*, 
  not 
  only 
  is 
  the 
  form 
  of 
  

   the 
  chelipedes 
  different, 
  but 
  also 
  the 
  antcnnal 
  scale 
  is 
  shorter, 
  reach- 
  

   ing 
  only 
  to 
  the 
  end 
  of 
  the 
  last 
  joint 
  of 
  the 
  peduncle. 
  

  

  6, 
  Coralliocaris 
  graminea 
  {Dana). 
  

  

  Four 
  specimens, 
  of 
  which 
  two 
  are 
  adult 
  females 
  with 
  ova, 
  were 
  

   obtained 
  at 
  the 
  Seychelles, 
  4-12 
  fms. 
  (iS^o. 
  194). 
  Specimens 
  from 
  

   the 
  same 
  locality 
  were 
  presented 
  to 
  the 
  Museum 
  by 
  Dr. 
  E. 
  P. 
  

   Wright. 
  

  

  These 
  specimens 
  agree 
  with 
  the 
  description 
  of 
  Dana 
  in 
  all 
  par- 
  

   ticulars 
  except 
  that 
  no 
  trace 
  remains 
  of 
  the 
  characteristic 
  markings 
  

   of 
  the 
  carapace, 
  the 
  coloration 
  in 
  spirit 
  being 
  yellowish 
  ; 
  and 
  the 
  

   margins 
  of 
  the 
  rostrum 
  above 
  the 
  eyes 
  are 
  slightly 
  convexly 
  ar- 
  

   cuated 
  ; 
  the 
  tooth 
  on 
  the 
  inferior 
  margin 
  of 
  the 
  rostrum, 
  or 
  one 
  of 
  

   the 
  teeth 
  of 
  the 
  superior 
  margin, 
  is 
  occasionally 
  absent. 
  

  

  Dana's 
  specimens 
  were 
  from 
  the 
  Fijis. 
  Dr. 
  Stimpson 
  records 
  

   this 
  species 
  from 
  Hong 
  Kong. 
  

  

  Coralliocaris 
  nndirostris 
  (Heller), 
  from 
  the 
  Red 
  Sea, 
  may 
  possibly 
  

   be 
  identical 
  with 
  this 
  species 
  ; 
  but 
  in 
  the 
  figure 
  the 
  dactyli 
  of 
  the 
  

   chelipedes 
  are 
  of 
  very 
  different 
  form 
  (cf. 
  Heller 
  in 
  Sitz. 
  Wien. 
  

   Akad. 
  xliv. 
  (1) 
  p. 
  279, 
  pi. 
  iii. 
  fig. 
  25, 
  1862). 
  

  

  7. 
  Penseus 
  canaliculatus, 
  Olivier. 
  

  

  A 
  small 
  specimen, 
  I 
  think 
  a 
  male, 
  was 
  obtained 
  at 
  Poivi'c 
  Island, 
  

   on 
  the 
  beach 
  (No. 
  198). 
  

  

  Since 
  reference 
  was 
  made 
  to 
  this 
  species 
  in 
  my 
  memoir 
  on 
  the 
  

   genus, 
  in 
  1878t, 
  specimens 
  have 
  been 
  added 
  to 
  the 
  collection 
  from 
  

   Richmond 
  River, 
  N. 
  S. 
  Wales 
  (A. 
  P. 
  Goodwin) 
  ; 
  there 
  is 
  also 
  in 
  the 
  

   Museum 
  collection 
  a 
  small 
  example, 
  in 
  bad 
  condition, 
  from 
  Swan 
  

   River 
  (Drimj). 
  

  

  Penmis 
  hrevirostris, 
  Kingsley 
  i, 
  is 
  very 
  nearly 
  allied 
  to, 
  and 
  may 
  

   be 
  identical 
  with, 
  this 
  species, 
  but 
  it 
  has 
  two 
  teeth 
  on 
  the 
  inferior 
  

  

  * 
  Proc. 
  Acad. 
  Nat. 
  Sci. 
  Philad. 
  p. 
  422, 
  pi. 
  xiv. 
  fig. 
  9 
  (1879). 
  

  

  t 
  Proc. 
  Zool. 
  Soc. 
  p. 
  298 
  (1878). 
  

  

  i 
  Proc. 
  Acad. 
  Nat. 
  Sci. 
  Philad. 
  p. 
  98 
  (1878). 
  

  

  2o2 
  

  

  