﻿256 
  Transactions. 
  — 
  Zooloc/y. 
  

  

  large, 
  sub-peJiform, 
  geniculate, 
  not 
  branchial. 
  Post-abdomen 
  with 
  two 
  

  

  broad 
  plates, 
  clawed. 
  

  

  Fam. 
  I. 
  Cypridinidaa. 
  

  

  Superior 
  aatenufB 
  large, 
  many-jointed, 
  setiferous 
  at 
  the 
  extremity. 
  

   Inferior 
  antennae 
  with 
  the 
  natatory 
  branch 
  nine-jointed, 
  and 
  furnished 
  with 
  

   ciliated 
  setse. 
  Mandibles 
  rudimentary 
  ; 
  palp 
  large, 
  pediform, 
  four 
  -jointed. 
  

   Second 
  pair 
  of 
  jaws 
  with 
  a 
  large 
  branchial 
  plate. 
  One 
  pair 
  of 
  feet, 
  vermi- 
  

   form, 
  annulated 
  and 
  armed 
  with 
  prickly 
  spines 
  at 
  the 
  apex, 
  oviferous. 
  Two 
  

   compound 
  eyes, 
  and 
  one 
  large 
  simple 
  eye. 
  

  

  Note, 
  — 
  In 
  the 
  Zoological 
  Society 
  Proc, 
  for 
  1850, 
  at 
  p, 
  255, 
  Mr. 
  Baird 
  

   has 
  described, 
  from 
  the 
  dried 
  and 
  bleached 
  valves, 
  a 
  species 
  of 
  CypricUna 
  (?) 
  

   Not 
  having 
  seen 
  his 
  drawings, 
  I 
  am 
  unable 
  to 
  say 
  whether 
  it 
  is 
  the 
  same 
  as 
  

   the 
  species 
  described 
  by 
  me, 
  as 
  Philoinedes 
  agilis. 
  The 
  following 
  is 
  Baird's 
  

   description 
  : 
  — 
  

   " 
  CypricUna 
  zealanica, 
  Baird. 
  

  

  Carapace 
  valves 
  of 
  an 
  oval 
  form, 
  somewhat 
  flattened, 
  but 
  convex 
  in 
  the 
  

   centre 
  and 
  striated; 
  the 
  stri^ 
  are 
  numerous, 
  close-set, 
  and 
  of 
  a 
  waved 
  

   appearance. 
  Surface 
  of 
  valves 
  covered 
  with 
  minute 
  punctations, 
  which 
  

   probably 
  give 
  origin 
  in 
  the 
  fresh 
  state 
  to 
  short 
  hairs, 
  though 
  they 
  are 
  not 
  

   visible 
  in 
  the 
  dried 
  specimens. 
  The 
  anterior 
  extremity 
  is 
  slightly 
  narrower 
  

   than 
  the 
  posterior. 
  The 
  whole 
  carapace 
  is 
  of 
  a 
  uniform 
  white 
  colour. 
  

   Natural 
  size 
  one-fourth 
  of 
  an 
  inch 
  long, 
  and 
  one-fifth 
  of 
  an 
  inch 
  broad. 
  

  

  Hab. 
  — 
  New 
  Zealand. 
  Two 
  specimens 
  were 
  sent 
  to 
  the 
  British 
  Museum 
  

   by 
  the 
  Eey, 
  E, 
  Taylor 
  of 
  Waimate 
  in 
  New 
  Zealand, 
  along 
  with 
  a 
  collection 
  

   of 
  marine 
  and 
  freshwater 
  shells, 
  but 
  without 
  any 
  history 
  attached 
  to 
  them," 
  

  

  At 
  p. 
  102 
  of 
  the 
  same 
  volume 
  this 
  species 
  is 
  described 
  as 
  C. 
  zealandica. 
  

   Genus 
  I. 
  Philomedes, 
  LiUjehorg. 
  

  

  Cypridina, 
  Baird. 
  Brit. 
  Entom., 
  p. 
  176. 
  

  

  Philomedes, 
  Lilljeborg; 
  G. 
  0. 
  Sars 
  ; 
  Norman; 
  Brady, 
  Zool. 
  Soc, 
  Proc. 
  1871, 
  p. 
  291. 
  

  

  Shell 
  of 
  moderate 
  strength 
  and 
  density, 
  Superior 
  antennre 
  six 
  -jointed 
  ; 
  

   in 
  the 
  female 
  short 
  and 
  thick, 
  and 
  bearing 
  several 
  subequal 
  terminal 
  setse 
  

   of 
  moderate 
  length 
  ; 
  in 
  the 
  male 
  more 
  elongated, 
  two 
  of 
  the 
  terminal 
  set» 
  

   of 
  excessive 
  length, 
  the 
  antepenultimate 
  joint 
  bearing 
  a 
  stout 
  and 
  densely 
  

   setose 
  auditory 
  filament. 
  Natatory 
  branch 
  of 
  lower 
  antenna 
  nine-jointed 
  ; 
  

   in 
  the 
  female 
  having 
  the 
  first 
  joint 
  very 
  long, 
  the 
  rest 
  short 
  and 
  subequal 
  ; 
  

   in 
  the 
  male 
  the 
  first 
  and 
  third 
  joints 
  long, 
  the 
  second 
  much 
  shorter, 
  the 
  rest 
  

   short 
  and 
  subequal 
  ; 
  secondary 
  branch 
  in 
  female 
  indistinctly 
  jointed, 
  setose; 
  

   in 
  the 
  male 
  long, 
  three-jointed, 
  cheliform. 
  Mandibular 
  feet 
  nearly 
  alike 
  in 
  

   both 
  sexes 
  ; 
  in 
  the 
  female 
  armed 
  with 
  mandibuliform 
  processes 
  and 
  spines, 
  

   in 
  the 
  male 
  bearing 
  on 
  the 
  basal 
  joint 
  a 
  small 
  tubercle 
  with 
  two 
  short 
  hairs; 
  

   second 
  pair 
  of 
  jaws 
  in 
  the 
  female 
  armed 
  with 
  mandibuliform 
  processes. 
  

   Eyes 
  of 
  the 
  female 
  small 
  and 
  pale-coloured 
  ; 
  of 
  the 
  male 
  large, 
  deep-red, 
  

   . 
  and 
  multilenticular. 
  

  

  