﻿MOLLFSCA. 
  89 
  

  

  Length 
  of 
  animal 
  17 
  millim., 
  diam. 
  7 
  ; 
  length 
  of 
  shell, 
  from 
  

   nucleus 
  to 
  opposite 
  end, 
  4|. 
  

  

  Hah. 
  Port 
  Jackson 
  (Coppiur/er). 
  

  

  This 
  may 
  be 
  the 
  P 
  deJicatus 
  of 
  Pease, 
  but 
  there 
  appear 
  to 
  be 
  

   certain 
  differences 
  in 
  the 
  shells 
  of 
  the 
  two 
  forms 
  which 
  may 
  be 
  of 
  

   specific 
  value. 
  

  

  127. 
  Dolabella 
  rumpMi. 
  

   Olivier, 
  Ann. 
  du 
  Mus. 
  v. 
  p. 
  437, 
  pi. 
  29. 
  fig. 
  1, 
  

  

  Hah. 
  N.E. 
  Australia 
  (Co/j/){»(7(?r) 
  ; 
  Moluccas 
  (i?«n!p7mfs) 
  ; 
  Timor 
  

   (Perou) 
  ; 
  Waigiou 
  {Qkoij 
  and 
  (Jaimard) 
  ; 
  Mauritius 
  {Rang 
  and 
  von 
  

   Martens). 
  

  

  There 
  is 
  no 
  indication 
  of 
  any 
  caudal 
  prolongation 
  in 
  the 
  specimen 
  

   before 
  me, 
  the 
  hinder 
  end 
  being 
  (in 
  spirit) 
  very 
  broad 
  and 
  obtusely 
  

   curved. 
  

  

  The 
  shell 
  agrees 
  with 
  the 
  figure 
  given 
  by 
  Eang 
  (Hist. 
  Nat. 
  des 
  

   Aplysiens, 
  pi. 
  1). 
  

  

  128. 
  Aplysia 
  sparsinotata. 
  

  

  Animal 
  of 
  a 
  pale 
  colour 
  in 
  spirit, 
  varied 
  with 
  a 
  few 
  dark 
  distant 
  

   dots 
  along 
  the 
  sides, 
  caudate 
  posteriorly. 
  Middle 
  of 
  back 
  between 
  

   the 
  mantle-lobes 
  in 
  front 
  of 
  the 
  shell, 
  also 
  the 
  inner 
  surface 
  of 
  the 
  

   anterior 
  portion 
  of 
  the 
  lobes 
  themselves, 
  exhibiting 
  irregular 
  brown- 
  

   ish 
  patches. 
  Lobes 
  commencing 
  a 
  short 
  distance 
  behind 
  the 
  dorsal 
  

   tentacles, 
  and 
  tei'minating 
  behind 
  at 
  about 
  the 
  same 
  distance 
  from 
  

   the 
  end 
  of 
  the 
  body. 
  Oral 
  tentacles 
  moderately 
  large 
  and 
  long 
  ; 
  

   posterior 
  conical, 
  acuminate, 
  not 
  far 
  apart. 
  

  

  Shell 
  elongate, 
  rather 
  beaked 
  behind, 
  sharply 
  arcuate 
  in 
  front, 
  

   15 
  millim. 
  long, 
  10 
  broad. 
  Animal 
  about 
  45 
  in 
  length. 
  

  

  Hah. 
  Same 
  as 
  A. 
  injierata. 
  

  

  129. 
  Aplysia 
  piperata. 
  

  

  Animal 
  (in 
  spirit) 
  olivaceous, 
  minutely 
  and 
  closely 
  dotted 
  every- 
  

   where, 
  with 
  the 
  exception 
  of 
  the 
  foot, 
  with 
  black 
  ; 
  hinder 
  third 
  

   part 
  of 
  the 
  body 
  sometimes 
  paler 
  than 
  the 
  rest, 
  from 
  which 
  it 
  is 
  

   marked 
  off 
  by 
  a 
  blackish 
  band 
  passing 
  right 
  round 
  the 
  animal. 
  

   Lobes 
  of 
  the 
  mantle 
  narrowish 
  in 
  front, 
  where 
  they 
  arise 
  quite 
  close 
  

   to 
  the 
  posterior 
  tentacles, 
  considerably 
  dilated 
  behind. 
  Oral 
  ten- 
  

   tacles 
  large, 
  long, 
  and 
  pointed 
  ; 
  posterior 
  small, 
  close 
  together, 
  

   conical. 
  

  

  Shell 
  white, 
  concave 
  within, 
  subquadrate. 
  Length 
  27 
  millim., 
  

   width 
  22. 
  Animal 
  about 
  80 
  long. 
  

  

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

  

  Peculiar 
  on 
  account 
  of 
  the 
  position 
  of 
  the 
  posterior 
  tentacles, 
  close 
  

   to 
  the 
  origin 
  of 
  the 
  mantle-lobes. 
  

  

  130. 
  Aplysia 
  denisoni. 
  

  

  Body 
  (in 
  spirit) 
  high, 
  exhibiting 
  a 
  distinct 
  pedal 
  disk, 
  produced 
  

   posteriorly 
  into 
  a 
  caudal 
  termination. 
  The 
  entire 
  surface 
  wrinkled, 
  

  

  