﻿252 
  COLLECTIONS 
  FROM 
  MELANESIA. 
  

  

  102. 
  PMyxia 
  crassipes, 
  Bell. 
  

  

  Of 
  this 
  species, 
  which 
  is 
  said 
  by 
  Mr. 
  Haswell 
  to 
  bo 
  extremely 
  

   common 
  at 
  Port 
  Jacksou, 
  a 
  very 
  small 
  male 
  was 
  dredged 
  at 
  that 
  

   locality 
  in 
  5-7 
  fms. 
  (No. 
  104), 
  and 
  another, 
  larger, 
  male 
  in 
  0-5 
  fms. 
  

   (second 
  collection). 
  

  

  Besides 
  the 
  specimens 
  from 
  Port 
  Jackson 
  {Cuming 
  and 
  /. 
  Macgil- 
  

   livray) 
  mentioned 
  by 
  Bell, 
  the 
  Museum 
  possesses 
  one 
  from 
  Flinders 
  

   Island, 
  Bass 
  Straits 
  {F. 
  M. 
  Rapier, 
  H.M.S. 
  ' 
  Herald 
  '), 
  and 
  others, 
  

   without 
  special 
  locality, 
  from 
  Dr. 
  Bowerbank 
  and 
  W. 
  A. 
  Mile.s, 
  

   Esq. 
  

  

  It 
  is 
  of 
  interest 
  to 
  note 
  that 
  there 
  are 
  two 
  other 
  species 
  of 
  this 
  

   genus 
  recorded 
  from 
  Port 
  Jackson, 
  and 
  agreeing 
  with 
  Plilyxia 
  cras- 
  

   sipes 
  in 
  possessing 
  a 
  4-lobed 
  front, 
  which 
  yet 
  appear 
  to 
  be 
  distinct 
  ; 
  

   they 
  are 
  Phhjxia 
  quadridentata* 
  , 
  a 
  species 
  recorded 
  from 
  Port 
  

   Jackson 
  by 
  Stimpson, 
  and 
  Phhjxia 
  ramsai/i, 
  Haswell 
  (t. 
  c. 
  p. 
  127). 
  

  

  103. 
  Phlyxia 
  lambriformis. 
  

  

  Phlyxia 
  lambriformis, 
  Bell, 
  Trans. 
  Linn. 
  Soc. 
  xxi. 
  p. 
  304, 
  pi. 
  xxxiv. 
  

   \ 
  fig. 
  2 
  (1855); 
  Cat. 
  Leucos. 
  Brit. 
  Mus. 
  p. 
  17 
  (1855); 
  Hasivell, 
  

  

  Cat. 
  Austr. 
  Crust, 
  p. 
  124 
  (1882). 
  

   Phlyxia 
  petleyi, 
  Haswell, 
  t. 
  c. 
  p. 
  125, 
  pi. 
  iii. 
  fig. 
  3 
  (1882). 
  

  

  A 
  female 
  was 
  received 
  with 
  Dr. 
  Coppinger's 
  second 
  collection 
  

   from 
  Prince 
  of 
  Wales 
  Channel, 
  9 
  fms. 
  (No. 
  157), 
  and 
  four 
  males 
  and 
  

   a 
  female 
  from 
  Port 
  Darwin, 
  7-12 
  fms. 
  (mostly 
  No. 
  173). 
  

  

  There 
  are, 
  besides, 
  two 
  specimens 
  in 
  the 
  British 
  Museum 
  from 
  

   the 
  ' 
  Eattlesnake 
  ' 
  collection, 
  obtained 
  at 
  Bass 
  Straits, 
  and 
  one 
  

   from 
  the 
  same 
  collection 
  without 
  special 
  locality. 
  

  

  It 
  is 
  recorded 
  by 
  Mr. 
  Haswell 
  from 
  Princess 
  Charlotte 
  Bay 
  and 
  

   Holborn 
  Island 
  near 
  Port 
  Denison, 
  and 
  also 
  from 
  Port 
  Molle, 
  Whit- 
  

   sunday 
  Passage 
  (as 
  P.petleyi). 
  

  

  After 
  a 
  careful 
  comparison 
  of 
  Mr. 
  Haswell's 
  description 
  and 
  

   figure 
  of 
  P. 
  petleyi 
  in 
  the 
  Catalogue 
  of 
  Australian 
  Stalk- 
  and 
  Sessile- 
  

   eyed 
  Crustacea 
  with 
  Prof. 
  Bell's 
  types 
  of 
  P. 
  lambriformis 
  in 
  the 
  

   Museum 
  collection, 
  I 
  am 
  unable 
  to 
  regard 
  the 
  two 
  as 
  distinct 
  

   species. 
  Prof. 
  Bell's 
  figure 
  is 
  from 
  an 
  adult 
  male 
  in 
  which 
  the 
  

   rostrum, 
  tubercles 
  of 
  the 
  carapace, 
  and 
  teeth 
  of 
  the 
  antero-lateral 
  

   margins 
  are 
  all 
  very 
  prominent, 
  whereas 
  Mr. 
  Haswell's 
  description 
  

   was 
  based 
  upon 
  a 
  female 
  and 
  smaller 
  male. 
  Moreover, 
  Bell's 
  short 
  

   description 
  is 
  misleading 
  in 
  one 
  or 
  two 
  particulars 
  — 
  e.g. 
  he 
  describes 
  

   the 
  carapace 
  as 
  carinated, 
  whereas 
  the 
  keel 
  in 
  question 
  extends 
  only 
  

   over 
  the 
  depressed 
  postfrontal 
  portion 
  of 
  the 
  carapace, 
  from 
  the 
  

   back 
  of 
  the 
  rostrum 
  to 
  the 
  gastric 
  region, 
  

  

  104. 
  Niirsia 
  sinuata, 
  Miers. 
  

  

  Of 
  this 
  species 
  three 
  specimens, 
  a 
  male 
  and 
  two 
  females, 
  are 
  in 
  

   the 
  collection 
  (No. 
  123), 
  but, 
  unfortunately, 
  the 
  exact 
  locality 
  is 
  not 
  

  

  * 
  Ebalia 
  quadridentata. 
  Gray, 
  Zool. 
  Miscell. 
  ii. 
  p. 
  40 
  (1831). 
  

  

  