﻿78 
  PROCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIETY. 
  

  

  on 
  the 
  fifth 
  adult 
  whorl 
  show 
  only 
  as 
  nodules 
  on 
  the 
  shoulder. 
  The 
  

   most 
  extraordinary 
  feature 
  is 
  the 
  disappearance 
  of 
  the 
  pink 
  colour, 
  

   which 
  is 
  replaced 
  by 
  creamy 
  white, 
  marked 
  with 
  longitudinal 
  zigzag 
  

   dashes 
  of 
  brown. 
  As 
  indicated 
  above, 
  the 
  whorls 
  are 
  shouldered. 
  

   The 
  mouth 
  is 
  unarmoured. 
  It 
  is 
  an 
  easily 
  recognizable 
  shell 
  by 
  

   means 
  of 
  its 
  pink 
  tip 
  and 
  zigzag 
  markings. 
  

  

  Another 
  species, 
  of 
  which 
  I 
  have 
  not 
  the 
  adult, 
  has 
  a 
  Simisigera 
  

   more 
  erect, 
  and, 
  though 
  the 
  post-embryonic 
  sculpture 
  is 
  very 
  similar, 
  

   it 
  is 
  pure 
  white. 
  It 
  is 
  possible 
  in 
  this 
  shell 
  the 
  sculpture 
  may 
  be 
  

   retained 
  on 
  the 
  later 
  whorls. 
  Another 
  species, 
  of 
  which 
  I 
  possess 
  no 
  

   adults, 
  has 
  a 
  shining, 
  white, 
  semi-globular 
  Simisigera, 
  followed 
  by 
  

   a 
  white 
  shell, 
  of 
  which 
  only 
  the 
  succeeding 
  two 
  whorls 
  are 
  faintly 
  

   longitudinally 
  ribbed, 
  the 
  third 
  whorl 
  showing 
  no 
  sculpture. 
  

  

  Alectrion 
  spiratus, 
  Adams, 
  has 
  been 
  referred 
  to 
  elegana, 
  Kien. 
  

   (Coq. 
  Viv., 
  1834, 
  p. 
  56, 
  pi. 
  xxiv, 
  fig. 
  97), 
  but 
  is 
  easily 
  separated 
  from 
  

   that 
  shell, 
  as 
  known 
  to 
  me 
  by 
  figures, 
  by 
  the 
  armoured 
  mouth 
  of 
  the 
  

   latter, 
  as 
  well 
  as 
  colour 
  and 
  sculpture. 
  

  

  SlPHONARIA 
  DiEMENENSIS, 
  Q,. 
  & 
  G. 
  

  

  The 
  first 
  SipJionaria 
  from 
  the 
  Kermadecs 
  were 
  recorded 
  under 
  the 
  

   above 
  name 
  by 
  Suter 
  (Trans. 
  N. 
  Zeal. 
  Inst., 
  1906 
  (1907), 
  vol. 
  xxxix, 
  

   p. 
  295), 
  with 
  Hedley's 
  concurrence. 
  The 
  numerous 
  specimens 
  I 
  col- 
  

   lected 
  all 
  varied, 
  but 
  were 
  quite 
  unlike 
  typical 
  Diemenensis, 
  and 
  

   Mr. 
  Hedley, 
  upon 
  the 
  quantity 
  I 
  showed 
  him, 
  would 
  have 
  preferred 
  

   to 
  attach 
  them 
  to 
  exulorum, 
  Hanley, 
  a 
  species 
  described 
  from 
  Norfolk 
  

   Island. 
  To 
  me 
  they 
  differed 
  quite 
  as 
  much 
  from 
  that 
  species. 
  I 
  do 
  

   not 
  intend 
  to 
  describe 
  them, 
  yet 
  feel 
  they 
  are 
  unsatisfactorily 
  placed 
  

   at 
  present. 
  A 
  second 
  species 
  was 
  found 
  which 
  I 
  have 
  referred 
  to 
  

   atra, 
  Q. 
  & 
  Q., 
  upon 
  Mr. 
  Hedley's 
  initiative. 
  This 
  is 
  a 
  much 
  

   smaller 
  shell 
  than 
  atra 
  usually 
  is, 
  but 
  does 
  not 
  disagree 
  so 
  decidedly 
  

   as 
  the 
  former 
  with 
  its 
  position. 
  The 
  perplexing 
  feature 
  of 
  these 
  

   shells 
  is 
  that 
  beach 
  specimens 
  could 
  not 
  be 
  made 
  to 
  coincide 
  with 
  

   either 
  of 
  the 
  above 
  two 
  forms. 
  A 
  few 
  live 
  shells 
  were 
  found 
  living 
  

   on 
  the 
  big 
  Aneistromesus, 
  which 
  seemed 
  quite 
  distinct, 
  but 
  I 
  cannot 
  

   think 
  three 
  species 
  of 
  Siphonaria 
  can 
  exist 
  on 
  such 
  a 
  small 
  island. 
  

   These 
  shells 
  varied 
  in 
  almost 
  all 
  the 
  characters 
  which 
  have 
  been 
  

   used 
  as 
  differential 
  features 
  in 
  the 
  previous 
  naming 
  of 
  Siphonaria, 
  

   and 
  the 
  examination 
  of 
  figures 
  of 
  so-called 
  species 
  left 
  me 
  in 
  despair. 
  

  

  GrADiNiA 
  coNiCA, 
  Angas. 
  

   Gadinia 
  conica, 
  Angas, 
  Proc.Zool.Soc, 
  1867, 
  pp. 
  115,220, 
  pl.xiii.fig. 
  27. 
  

   G. 
  pentegoniostoma, 
  Sowb. 
  : 
  Angas, 
  Proc. 
  Zool. 
  Soc, 
  1867, 
  p. 
  220. 
  

   G. 
  conica, 
  Angas: 
  Dall, 
  Amer. 
  Journ. 
  Conch., 
  1871, 
  vol. 
  vi, 
  p. 
  11. 
  

   G. 
  Angasii, 
  Dall, 
  loc. 
  cit. 
  

   Siplionaria 
  albida, 
  Angas, 
  Proc. 
  Zool. 
  Soc, 
  1878, 
  pp. 
  314, 
  869, 
  

  

  pi. 
  xviii, 
  figs. 
  14, 
  15. 
  

   Gadinea 
  nivea, 
  Hutton, 
  Journ. 
  de 
  Conch., 
  1878, 
  vol. 
  xxvi, 
  p. 
  36 
  ; 
  

  

  Man. 
  K 
  Zeal. 
  Moll., 
  1880. 
  pp. 
  37, 
  202 
  ; 
  Trans. 
  N. 
  Zeal. 
  Inst., 
  

  

  1882 
  (1883), 
  vol. 
  xv, 
  p. 
  144, 
  figs. 
  i-v. 
  

   On 
  Sunday 
  Island, 
  Kermadec 
  Group, 
  I 
  collected 
  live 
  as 
  well 
  as 
  

   dead 
  specimens 
  of 
  a 
  Gadinia. 
  Anyone 
  who 
  has 
  met 
  with 
  a 
  colony 
  

  

  