﻿320 
  COLLECTIONS 
  FROM 
  MELANESIA. 
  

  

  This 
  species 
  is 
  very 
  nearly 
  allied 
  to 
  the 
  British 
  Podocerus 
  falcatus, 
  

   Montagu 
  (of 
  which 
  the 
  male 
  is 
  figured 
  by 
  Sp. 
  Bate 
  and 
  Westwood 
  as 
  

   P. 
  pidcheUiis), 
  and 
  also 
  to 
  P. 
  validtis 
  (Dana), 
  from 
  Rio 
  de 
  Janeiro, 
  

   in 
  the 
  form 
  of 
  the 
  legs 
  of 
  the 
  second 
  pair. 
  I 
  have 
  not 
  been 
  able 
  to 
  

   compare 
  it 
  with 
  specimens 
  of 
  the 
  last-mentioned 
  species. 
  Erom 
  

   P. 
  falcatus 
  it 
  is 
  apparently 
  distinguished 
  by 
  the 
  inferior 
  antennae, 
  

   whose 
  flagellum 
  (in 
  the 
  specimens 
  of 
  P. 
  aiistralis 
  I 
  have 
  examined) 
  

   has 
  a 
  very 
  long 
  stout 
  basal 
  joint 
  which 
  much 
  exceeds 
  the 
  united 
  

   length 
  of 
  the 
  remaining 
  joints 
  of 
  the 
  flagellum 
  ; 
  these 
  are 
  two 
  or 
  

   three 
  in 
  number, 
  very 
  short, 
  and 
  diminish 
  successively 
  in 
  length. 
  

  

  10. 
  Caprella 
  aequilibra 
  (Sat/). 
  

  

  A 
  good 
  series 
  of 
  specimens 
  were 
  obtained 
  from 
  weed 
  on 
  the 
  ship's 
  

   bottom 
  at 
  Port 
  Jackson 
  with 
  Podocen's 
  australis. 
  -;., 
  

  

  Mr. 
  Haswell's 
  examples 
  (designated 
  C. 
  obesa) 
  were 
  from 
  Clark 
  

   Island 
  in 
  the 
  same 
  harbour. 
  

  

  All 
  appear 
  to 
  be 
  males. 
  A 
  conical 
  spine, 
  not 
  mentioned 
  by 
  Mr. 
  

   Haswell, 
  exists 
  on 
  the 
  ventral 
  surface 
  of 
  the 
  body, 
  between 
  the 
  

   second 
  pair 
  of 
  legs 
  (gnathopoda). 
  

  

  A 
  female 
  obtained 
  with 
  the 
  foregoing, 
  and 
  which 
  probably 
  belongs 
  

   to 
  the 
  same 
  species, 
  has 
  the 
  joints 
  of 
  the 
  peduncle 
  of 
  the 
  siiperior 
  

   antennas 
  less 
  dilated 
  and 
  the 
  flagellum 
  more 
  elongated 
  ; 
  the 
  basus- 
  

   joints 
  of 
  the 
  second 
  gnathopoda 
  are 
  less 
  dilated 
  ; 
  but 
  one 
  of 
  the 
  

   distal 
  teeth 
  of 
  the 
  inferior 
  margin 
  of 
  the 
  palm 
  is 
  developed, 
  and 
  

   this 
  is 
  very 
  indistinct. 
  

  

  I 
  may 
  refer 
  to 
  Dr. 
  Paul 
  Mayer's 
  recently 
  published 
  fine 
  mono- 
  

   graph 
  of 
  the 
  Caprellidse 
  * 
  for 
  the 
  synonyms 
  of 
  this 
  very 
  widely 
  dis- 
  

   tributed 
  species. 
  There 
  can 
  be 
  no 
  doubt 
  of 
  the 
  correctness 
  of 
  his 
  

   identification 
  of 
  C. 
  obesa, 
  Haswell, 
  with 
  C. 
  a'qnilibra 
  (Say), 
  Say's 
  

   specimen 
  in 
  the 
  British-Museum 
  collection, 
  although 
  dried 
  and 
  in 
  a 
  

   somewhat 
  shrivelled 
  condition, 
  does 
  not 
  differ 
  appreciably 
  from 
  our 
  

   Australian 
  examples, 
  nor 
  from 
  a 
  specimen 
  from 
  the 
  Mediterranean 
  

   (Ilennah), 
  and 
  the 
  dried 
  one 
  from 
  Hong 
  Kong 
  (Harrington) 
  in 
  the 
  

   Museum 
  collection, 
  which 
  was 
  identified 
  with 
  C. 
  crqiiilihra 
  by 
  Mr. 
  

   Spence 
  Bate. 
  Out 
  of 
  three 
  (presumably) 
  British 
  examples 
  in 
  spirit 
  

   in 
  the 
  Museum 
  collection, 
  designated 
  C. 
  o'quilibra 
  by 
  Mr. 
  Sp. 
  Bate, 
  

   one 
  only 
  belongs 
  to 
  this 
  species, 
  and 
  this 
  also 
  does 
  not 
  differ 
  from 
  

   the 
  Australian 
  examples. 
  

  

  11. 
  Caprella 
  attenuata, 
  Dana? 
  (Plate 
  XXXIV, 
  fig. 
  C.) 
  

  

  I 
  refer 
  here 
  with 
  much 
  hesitation 
  a 
  male 
  obtained 
  at 
  Port 
  Jackson 
  

   with 
  Caprella 
  o'quilibra. 
  It 
  diflfers 
  from 
  C, 
  attenuata 
  as 
  figured 
  

   by 
  Dana 
  and 
  by 
  Dr. 
  Mayer 
  (t. 
  c. 
  p. 
  67) 
  in 
  the 
  much 
  more 
  robust 
  

  

  * 
  In 
  ' 
  Fauna 
  unci 
  Flora 
  des 
  Golfes 
  von 
  Neapel,' 
  vi. 
  p. 
  45, 
  pi. 
  i. 
  fig. 
  7, 
  pi. 
  ii. 
  

   %. 
  1-11, 
  pi. 
  iv. 
  figs. 
  20-25, 
  pi. 
  r. 
  figs. 
  16-18 
  (1882). 
  

  

  