﻿MOLLUSCA. 
  69 
  

  

  Hood's 
  Island 
  (i?^t7»r) 
  ; 
  Oomaga 
  Reef 
  {Juices) 
  ; 
  Mauritius 
  (J/fl7-«(?/is) 
  ; 
  

   Home 
  Islands, 
  off 
  Cape 
  Greuville, 
  N.E. 
  Australia, 
  and 
  Darnley 
  

   Island, 
  Torres 
  Straits 
  (Brazier). 
  

  

  With 
  this 
  species 
  If. 
  cidaris 
  and 
  N. 
  petitiana 
  have 
  very 
  close 
  

   relationship, 
  and, 
  indeed, 
  at 
  present 
  I 
  cannot 
  appreciate 
  their 
  points 
  

   of 
  distinction. 
  

  

  81. 
  Nerita 
  chrysostoma. 
  

  

  Recluz 
  ; 
  Reeve, 
  Conch. 
  Icon. 
  pi. 
  iv. 
  figs. 
  18 
  a, 
  b. 
  

  

  Hab. 
  Friday 
  and 
  Thursday 
  Islands, 
  Torres 
  Straits, 
  and 
  Endeavour 
  

   Straits, 
  N. 
  Australia 
  {Coiypinger) 
  ; 
  Philippine 
  Islands 
  {Cuming). 
  

  

  \yith 
  this 
  species 
  should 
  probably 
  be 
  united 
  N, 
  Le 
  guillouana, 
  

   N. 
  savieana, 
  N. 
  longti, 
  N. 
  aurantia 
  (all 
  of 
  Recluz), 
  and 
  N. 
  funi- 
  

   culata, 
  Reeve. 
  

  

  82. 
  Nerita 
  melanotragns. 
  

  

  Nerita 
  atrata, 
  Reeve 
  {nun 
  Chemnitz), 
  Conch. 
  Icon. 
  figs. 
  \Qn,b; 
  Hrdton, 
  

   Mamial 
  3Ioll. 
  New 
  Zealand, 
  p. 
  89 
  ; 
  Anr/as, 
  Proc. 
  Zool. 
  Soc. 
  1865, 
  

   p. 
  175 
  ; 
  op. 
  cif. 
  1867, 
  p. 
  212. 
  

  

  Nerita 
  nigra 
  {Quoy 
  Sf 
  Gaimard), 
  Graij^ 
  DieffenhacNs 
  New 
  Zealand, 
  

   vol. 
  ii. 
  p. 
  240. 
  

  

  Hah. 
  New 
  Zealand, 
  common 
  in 
  the 
  north, 
  not 
  found 
  south 
  of 
  

   Wellington 
  (Ifutfon) 
  ; 
  Australia 
  and 
  Tasmania 
  {Hutton) 
  ; 
  Port 
  

   Jackson 
  {Coppinger, 
  Angus., 
  Sfc); 
  Norfolk 
  Island 
  {BrencJiJeg) 
  ', 
  

   Raoul 
  or 
  Sunday 
  Island, 
  Kermadec 
  Islands 
  {McccGiUivray, 
  Voy. 
  

   of 
  H.M.S. 
  ' 
  Herald 
  ')• 
  

  

  I 
  am 
  inclined 
  with 
  Deshayes 
  * 
  and 
  Martens 
  f 
  to 
  consider 
  the 
  shell 
  

   figured 
  by 
  Reeve 
  not 
  the 
  N. 
  atrata 
  of 
  Chemnitz. 
  That 
  author 
  

   describes 
  both 
  lips 
  as 
  white, 
  whereas 
  the 
  species 
  figured 
  by 
  Reeve 
  

   has 
  the 
  outer 
  lip 
  remarkably 
  margined 
  with 
  black. 
  Besides, 
  the 
  

   localities 
  quoted 
  in 
  the 
  ' 
  Conchylicn-Cabinet,' 
  namely 
  the 
  coast 
  of 
  

   Guinea 
  and 
  the 
  West 
  Indies, 
  do 
  not 
  support 
  Reeve's 
  identification. 
  

   It 
  is 
  not, 
  however, 
  improbable 
  that 
  the 
  Nerita 
  mentioned 
  by 
  

   Chemnitz 
  in 
  the 
  concluding 
  paragraph 
  of 
  his 
  description 
  ma}- 
  have 
  

   been 
  the 
  N. 
  atrata 
  of 
  Reeve, 
  for 
  he 
  states 
  it 
  to 
  have 
  been 
  boug 
  ht 
  

   from 
  the 
  South 
  Seas 
  by 
  one 
  of 
  the 
  expeditions 
  under 
  Captain 
  Cook. 
  

   I 
  cannot 
  find 
  any 
  species 
  described 
  by 
  Quoy 
  and 
  Gaimard 
  under 
  

   the 
  name 
  N. 
  nigra 
  quoted 
  by 
  Gray 
  in 
  Dicffenbach's 
  work, 
  although 
  

   they 
  figure 
  the 
  animal 
  only 
  of 
  a 
  Nerite 
  noirdtre 
  in 
  the 
  ' 
  Voyage 
  de 
  

   I'Uranie 
  et 
  la 
  Physicienne.' 
  The 
  shell 
  of 
  that 
  species 
  they 
  do 
  not 
  

   describe, 
  on 
  account 
  of 
  its 
  bad 
  condition. 
  The 
  N. 
  punctata, 
  Q. 
  & 
  G., 
  

   from 
  the 
  Mauritius 
  is 
  placed 
  as 
  a 
  synonym 
  of 
  the 
  present 
  species 
  

   by 
  Mr. 
  Angas 
  (Proc. 
  Zool. 
  Soc. 
  1865, 
  p. 
  175); 
  but 
  that 
  species 
  I 
  

   consider 
  perfectly 
  distinct, 
  being 
  probably 
  the 
  same 
  as 
  the 
  N. 
  niger- 
  

   rima 
  of 
  Chemnitz 
  as 
  figured 
  by 
  Reeve, 
  which 
  varies 
  to 
  a 
  considerable 
  

   extent 
  in 
  the 
  amount 
  of 
  white 
  dotting. 
  Tlie 
  spire 
  of 
  N. 
  punctata 
  

   is 
  described 
  as 
  "fojii'f.ra, 
  prominenti."' 
  The 
  aperture 
  is 
  said 
  to 
  be 
  

  

  * 
  Anim. 
  sans 
  Vprtcbre.'<, 
  ed. 
  2, 
  vol. 
  viii. 
  p. 
  HO,'}. 
  

  

  t 
  Beitrage 
  zur 
  Meeresfamia 
  c1er 
  Inscl 
  Mniiritiiis 
  und 
  der 
  Spycliollen, 
  p. 
  292. 
  

  

  