﻿CRirSTACKA. 
  321 
  

  

  and 
  shorter 
  segments 
  of 
  the 
  body 
  and 
  peduncular 
  joints 
  of 
  the 
  

   superior 
  antennae, 
  relatively 
  longer 
  inferior 
  antenna), 
  &c., 
  as 
  a 
  com- 
  

   parison 
  of 
  the 
  figures 
  will 
  show 
  ; 
  but 
  as 
  Mayer 
  refers 
  to 
  this 
  species 
  

   (founded 
  upon 
  types 
  from 
  Rio 
  de 
  Janeiro) 
  specimens 
  sent 
  to 
  him 
  by 
  

   Mr, 
  Haswell 
  from 
  Port 
  Jackson, 
  and 
  our 
  specimen 
  agrees 
  with 
  Dana's 
  

   figures 
  of 
  the 
  male 
  in 
  the 
  denticulation 
  of 
  the 
  palms 
  of 
  the 
  second 
  

   legs 
  and 
  in 
  other 
  characteristic 
  points, 
  T 
  do 
  not 
  venture 
  to 
  regard 
  it 
  

   as 
  distinct. 
  

  

  CapreUa 
  novce-zecdandioi 
  of 
  Kirk 
  * 
  comes 
  very 
  near 
  this 
  species, 
  

   but 
  differs 
  in 
  the 
  form 
  of 
  the 
  non-ciliated 
  joints 
  of 
  the 
  flagellum 
  of 
  

   the 
  superior 
  antenna3, 
  and 
  the 
  penultimate 
  joint 
  of 
  the 
  second 
  legs 
  is 
  

   armed 
  (apparently) 
  with 
  but 
  two 
  teeth. 
  Both 
  C 
  novce-zealandias 
  

   and 
  Protdla 
  austruUs, 
  which 
  greatly 
  resemble 
  this 
  species, 
  have 
  a 
  

   spine 
  or 
  tooth 
  on 
  the 
  penultimate 
  joint 
  of 
  the 
  three 
  posterior 
  legs, 
  of 
  

   which 
  scarcely 
  any 
  indications 
  exist 
  in 
  the 
  specimens 
  I 
  refer 
  to 
  

   C. 
  attenuata. 
  

  

  Two 
  other 
  very 
  small 
  Caprellce, 
  also 
  obtained 
  at 
  Port 
  Jackson, 
  

   are 
  in 
  the 
  collection, 
  which 
  I 
  am 
  unable 
  to 
  identify 
  with 
  certainty, 
  

   but 
  do 
  not 
  think 
  it 
  desirable 
  to 
  designate 
  by 
  a 
  distinct 
  specific 
  

   name. 
  

  

  OSTRACODA. 
  

  

  The 
  few 
  Ostracoda 
  collected 
  were 
  submitted 
  to 
  Dr. 
  G. 
  S. 
  Brady 
  

   for 
  determination, 
  who 
  referred 
  them 
  to 
  the 
  following 
  species 
  :— 
  

  

  1. 
  Cypridina 
  albo-maculata, 
  Baird. 
  

  

  The 
  specimens 
  collected 
  were 
  from 
  Port 
  Darwin, 
  12 
  fms., 
  and 
  

   Dundas 
  Straits, 
  17 
  fms. 
  (No. 
  161). 
  The 
  original 
  types 
  were 
  from 
  

   Western 
  Australia, 
  Swan 
  River. 
  

  

  CIRRIPEDIA. 
  

  

  1. 
  Balanus 
  trigonus, 
  Darwin. 
  

  

  Numerous 
  specimens 
  (mostly 
  small) 
  were 
  obtained 
  at 
  Port 
  Jack- 
  

   son, 
  0-5 
  fms. 
  (No. 
  90). 
  Darwin 
  records 
  it 
  from 
  Sydney, 
  and 
  

   mentions 
  its 
  distribution 
  through 
  the 
  Malaysian 
  seas 
  and 
  its 
  oc- 
  

   currence 
  at 
  New 
  Zealand 
  and 
  also 
  on 
  the 
  W. 
  coast 
  of 
  the 
  American 
  

   continent. 
  

  

  2. 
  Balanus 
  amaryllis, 
  Danvin. 
  

  

  A 
  specimen 
  from 
  the 
  beach 
  at 
  Port 
  Darwin 
  (No. 
  176), 
  and 
  

   several 
  small 
  specimens 
  from 
  Albany 
  Island, 
  3-4 
  fms., 
  attached 
  

   to 
  a 
  shell, 
  appear 
  to 
  belong 
  to 
  this 
  species. 
  In 
  the 
  two 
  largest 
  

   specimens, 
  however, 
  whose 
  opercula 
  I 
  have 
  examined, 
  the 
  scuta 
  

  

  * 
  Trans. 
  New-Zeal. 
  Inst. 
  xii. 
  p. 
  393 
  (1879). 
  

  

  