﻿72 
  PEOCEEDINGS 
  OF 
  THE 
  JIALACOLOGICAL 
  SOCIETY. 
  

  

  The 
  spire, 
  too, 
  is 
  more 
  pronounced, 
  whorls, 
  including 
  the 
  nuclear, 
  

   9 
  as 
  against 
  7. 
  

  

  8. 
  Iforum 
  ca7icellatum 
  (Sow.). 
  

   Oniscidia 
  cancellata, 
  G. 
  B. 
  Sowerby 
  (first 
  of 
  the 
  name), 
  Gen. 
  Shells, 
  

  

  figs. 
  1-3, 
  1824. 
  

   Oniscia 
  cancellata^ 
  Sow., 
  lleeve, 
  Conch. 
  Icon., 
  v, 
  1849, 
  fig. 
  5 
  (letter- 
  

   press). 
  

   Sah. 
  — 
  China. 
  

  

  A 
  common 
  species, 
  constituting 
  the 
  type 
  of 
  the 
  section 
  Oniscidia, 
  

   Sow. 
  It 
  is 
  probable 
  that 
  both 
  M. 
  cithara, 
  Wats., 
  and 
  grande, 
  A. 
  Ad., 
  

   may, 
  in 
  the 
  future, 
  be 
  subjected 
  to 
  its 
  synonymy 
  ; 
  but 
  in 
  the 
  absence 
  

   of 
  close 
  intermediates 
  it 
  is 
  best 
  for 
  the 
  present 
  to 
  keep 
  them 
  separate. 
  

  

  9. 
  Iforum 
  exquisitum 
  (Ad. 
  & 
  Rve.). 
  

   Oniscia 
  exquisita, 
  Adams 
  & 
  lleeve, 
  Voy. 
  Samarang, 
  1850, 
  p. 
  35, 
  

   pi. 
  V, 
  figs. 
  Za-h. 
  

  

  ,, 
  ,, 
  lleeve. 
  Conch. 
  Icon., 
  v, 
  Aug. 
  1849, 
  pi. 
  i, 
  fig. 
  3. 
  

  

  ITah. 
  — 
  Sooloo 
  Archipelago, 
  outside 
  a 
  coral-reef, 
  in 
  sandy 
  mud, 
  at 
  

   16-20 
  fathoms 
  (Sir 
  E. 
  Belcher), 
  Philippine 
  Isles 
  (Hidalgo), 
  Japan 
  

   (Hirase), 
  Sava 
  de 
  Malha 
  Banks, 
  S. 
  Indian 
  Ocean 
  (J. 
  Stanley 
  Gardiner). 
  

  

  The 
  beautiful 
  pale-pink 
  lip 
  and 
  columellar 
  area, 
  conspicuously 
  

   dotted 
  with 
  small 
  white 
  papillae, 
  teeth 
  of 
  the 
  outer 
  lip 
  white, 
  the 
  

   margin 
  being 
  thrice 
  spotted 
  with 
  brown 
  maculation, 
  ribs 
  with 
  

   rounded 
  tubercular 
  ridges, 
  not 
  echinate, 
  contour 
  ovate, 
  characterize 
  

   this 
  rare 
  species. 
  The 
  type 
  was 
  figured 
  by 
  lleeve 
  from 
  the 
  

   Dennison 
  Collection, 
  at 
  which 
  sale 
  in 
  1865 
  it 
  fetched 
  a 
  high 
  price. 
  

   I 
  do 
  not 
  know 
  where 
  this 
  actual 
  specimen 
  may 
  be 
  at 
  the 
  present 
  

   time. 
  The 
  example 
  from 
  Saya 
  de 
  Malha 
  is 
  in 
  the 
  British 
  Museum. 
  

  

  10. 
  Morum 
  definisoni 
  {lleeve). 
  

   Oniscia 
  dennisoni, 
  Reeve, 
  Proc. 
  Zool. 
  Soc. 
  Lond., 
  1842, 
  p. 
  21. 
  

  

  ,, 
  „ 
  Conch. 
  System, 
  ii, 
  1842, 
  p. 
  21 
  1, 
  pi. 
  ccliii, 
  figs. 
  5, 
  6. 
  

  

  ,, 
  ,, 
  Conch. 
  Icon., 
  v, 
  Aug. 
  1849, 
  pi. 
  i, 
  fig. 
  6. 
  

  

  Hah. 
  — 
  Reported 
  from 
  Guadeloupe, 
  but 
  most 
  probably 
  an 
  Eastern 
  

   species. 
  Type 
  in 
  Mus. 
  Brit. 
  ? 
  

  

  This, 
  the 
  most 
  striking 
  in 
  botli 
  form 
  and 
  coloration 
  of 
  all 
  the 
  

   recent 
  species 
  of 
  Morum, 
  has 
  gained 
  a 
  reputation 
  as 
  one 
  of 
  the 
  rarest 
  

   and 
  most 
  select 
  of 
  all 
  Mollusca. 
  From 
  the 
  last-named 
  [exquisitum) 
  

   it 
  differs 
  in 
  many 
  particulars, 
  notably 
  in 
  its 
  oblong 
  contour, 
  

   echinulate 
  ribs, 
  and 
  the 
  bi'illiant 
  orange 
  suffusion 
  of 
  outer 
  lip 
  and 
  

   columellar 
  area, 
  the 
  small 
  white 
  papillte 
  showing 
  more 
  plainly 
  by 
  

   contrast 
  with 
  the 
  ground 
  colour. 
  

  

  Fifty-four 
  years 
  ago, 
  towards 
  the 
  end 
  of 
  April, 
  1865, 
  the 
  six 
  days' 
  

   sale 
  of 
  the 
  great 
  conchological 
  stores 
  of 
  tlie 
  late 
  Mr. 
  John 
  Dennison, 
  

   of 
  Liverpool, 
  took 
  place 
  at 
  Stevens' 
  Auction 
  Rooms. 
  The 
  specimen 
  

   in 
  the 
  British 
  Museum 
  is, 
  I 
  presume, 
  one 
  of 
  the 
  two 
  specimens 
  then 
  

   sold 
  ; 
  what 
  I 
  believe 
  to 
  have 
  been 
  the 
  other 
  was 
  offered 
  by 
  auction 
  

   at 
  Deventer, 
  Holland, 
  in 
  July, 
  1876, 
  at 
  the 
  sale 
  of 
  the 
  Iloeters 
  van 
  

   Lennep 
  Collection, 
  but 
  I 
  am 
  ignorant 
  of 
  its 
  destination. 
  

  

  It 
  has 
  been 
  reported 
  as 
  dredged 
  off 
  Guadeloupe 
  in 
  recent 
  years 
  by 
  

   M. 
  Beau, 
  but 
  this 
  needs 
  confirmation. 
  

  

  