﻿90 
  COLLECTIONS 
  FROM 
  MELANESIA. 
  

  

  dirty 
  whitish, 
  black-veined 
  in 
  the 
  wrinkles 
  (? 
  stains 
  only). 
  Mantle- 
  

   lobes 
  moderately 
  large, 
  commencing 
  in 
  front 
  some 
  distance 
  behind 
  

   the 
  posterior 
  tentacles 
  and 
  terminating 
  a 
  little 
  in 
  advance 
  of 
  the 
  

   Cauda. 
  Anterior 
  tentacles 
  large, 
  compressed, 
  much 
  dilated. 
  Pos- 
  

   terior 
  tentacles 
  large, 
  cylindrical, 
  with 
  the 
  apical 
  slit 
  not 
  extending 
  

   halfway 
  down 
  the 
  outer 
  side, 
  placed 
  a 
  little 
  nearer 
  the 
  oral 
  tentacles 
  

   than 
  the 
  beginning 
  of 
  the 
  mantle-lobes. 
  Eyes 
  minute, 
  situated 
  

   near 
  the 
  outer 
  anterior 
  base 
  of 
  tentacles. 
  

  

  Shell 
  very 
  thin, 
  straw-colour, 
  30 
  millim. 
  long 
  and 
  27 
  broad. 
  

  

  Animal 
  about 
  three 
  inches 
  in 
  length 
  in 
  its 
  contracted 
  state. 
  

  

  Hah. 
  Port 
  Denison, 
  Queensland. 
  

  

  This 
  species 
  is 
  remarkable 
  for 
  the 
  large 
  size 
  of 
  the 
  oral 
  tentacles. 
  

  

  131. 
  Stylocheilus, 
  sp. 
  

  

  Hah. 
  Thursday 
  Island, 
  Torres 
  Straits, 
  4-5 
  fms., 
  on 
  a 
  sandy 
  

   bottom. 
  

  

  There 
  are 
  four 
  specimens 
  from 
  the 
  above 
  locality 
  evidently 
  belong- 
  

   ing 
  to 
  the 
  genus 
  Sti/loeheiJus, 
  which, 
  having 
  lost 
  all 
  colour 
  and 
  being 
  

   in 
  rather 
  poor 
  condition, 
  I 
  refrain 
  from 
  describing. 
  One 
  of 
  them, 
  

   tlie 
  smallest, 
  differs 
  from 
  the 
  rest 
  in 
  having 
  a 
  decidedly 
  larger 
  

   branchial 
  opening 
  in 
  the 
  mantle, 
  which 
  is 
  not, 
  I 
  am 
  of 
  opinion, 
  due 
  

   to 
  any 
  contraction 
  in 
  the 
  other 
  three. 
  All 
  present 
  a 
  feature 
  not 
  

   mentioned 
  by 
  Gould 
  in 
  his 
  description 
  of 
  the 
  genus, 
  viz. 
  a 
  duplicature 
  

   of 
  the 
  anterior 
  margin 
  of 
  the 
  foot. 
  In 
  the 
  figure, 
  however, 
  of 
  S. 
  

   quercintis 
  (Wilkes's 
  Explor. 
  Exjicd., 
  Atlas, 
  MoUusca, 
  pi. 
  16. 
  f. 
  271) 
  

   this 
  peculiarity 
  is 
  indicated, 
  of 
  which 
  a 
  better 
  idea 
  is 
  given 
  in 
  

   Savigny's 
  figure 
  of 
  Aplysia 
  sauigm/iana, 
  Atlas 
  to 
  the 
  Explorations 
  

   in 
  Egy]3t, 
  pi. 
  2. 
  figs. 
  2 
  2, 
  also 
  copied 
  in 
  Bang's 
  Hist. 
  jSTat. 
  des 
  

   Aplysiens, 
  pi. 
  20. 
  f. 
  2. 
  

  

  132. 
  Miamira 
  nobilis. 
  

  

  £erf/h, 
  Joiirn. 
  Mus. 
  Oodeffroy, 
  1874, 
  Heft 
  vi. 
  pi. 
  1. 
  fig. 
  5; 
  1875, 
  Heft 
  

   viii. 
  p. 
  53, 
  pi. 
  8. 
  figs. 
  1-30, 
  pi. 
  9. 
  figs. 
  1-4 
  ; 
  tScmper, 
  Reisen 
  Philip- 
  

   pinen, 
  Bd. 
  ii. 
  pi. 
  33. 
  fig. 
  2 
  ; 
  Beryh 
  in 
  Semper's 
  lieisen, 
  vol. 
  ii. 
  

   Heft 
  10, 
  p. 
  411. 
  

  

  Hah. 
  Port 
  Denison, 
  Queensland, 
  4 
  fms. 
  (Coppinger). 
  

  

  Only 
  a 
  single 
  specimen 
  of 
  this 
  beautiful 
  Nudibranch 
  was 
  obtained 
  

   by 
  Dr. 
  Coppinger. 
  It 
  still 
  retains 
  in 
  spirit 
  the 
  vivid 
  orange 
  spots, 
  

   which 
  in 
  time 
  will 
  probably 
  disappear. 
  Dr. 
  Semper 
  found 
  this 
  

   species 
  at 
  the 
  Philippines, 
  and 
  it 
  has 
  also 
  been 
  met 
  with 
  at 
  Amboina 
  

   (Martens) 
  and 
  the 
  Samoa 
  Islands. 
  

  

  133. 
  Ceratosoma 
  tenue. 
  

  

  Abraham, 
  Ann. 
  8f 
  Mag. 
  Nat. 
  Hist. 
  1876, 
  vol. 
  xviii. 
  p. 
  141, 
  pi. 
  7. 
  

   figs. 
  5-5 
  6 
  ; 
  Proc. 
  Zool. 
  Soc. 
  1877, 
  p. 
  234. 
  

  

  Hah. 
  Thursday 
  Island, 
  Torres 
  Straits, 
  4-5 
  fms. 
  

   This 
  species 
  and 
  (J. 
  cahdonicuvi 
  of 
  Fischer 
  (Journ. 
  de 
  Conch. 
  

   18 
  76, 
  p. 
  92) 
  may 
  eventually 
  prove 
  to 
  be 
  identical, 
  in 
  which 
  case 
  

  

  