﻿176 
  PKOCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIETT. 
  

  

  Syrnola. 
  meteia, 
  Melvill. 
  

  

  Syrnola 
  metria, 
  Melvill, 
  Proc. 
  Malac. 
  Soc, 
  vol. 
  ii, 
  p. 
  112, 
  pi. 
  viii, 
  

   fig. 
  16. 
  

  

  Hab. 
  —?.(}. 
  Bushire. 
  

  

  1. 
  Karachi. 
  At 
  low 
  tide 
  amongst 
  weed 
  and 
  loose 
  rocks. 
  

  

  A 
  small 
  Pyramidelloid 
  with 
  canaliculate 
  whorls 
  and 
  once-plaited, 
  

   columella. 
  It 
  has 
  only, 
  so 
  far, 
  occurred 
  singly. 
  

  

  Syrnola 
  modica 
  (A. 
  Adams). 
  

  

  Pyramidella 
  modica, 
  A. 
  Adams: 
  Reeve, 
  Conch. 
  Icon., 
  Pyramidella, 
  

   fig. 
  41. 
  

  

  Hah. 
  — 
  P.G. 
  Mussandam, 
  47 
  fathoms. 
  

  

  M.C. 
  Charbar. 
  

  

  Seems 
  to 
  co-relate 
  nearest 
  with 
  this 
  species, 
  which 
  has 
  its 
  head- 
  

   quarters 
  in 
  Japan. 
  I 
  also 
  have 
  three 
  specimens 
  in 
  my 
  collection 
  

   labelled 
  Hong-Kong. 
  

  

  Syrnola 
  mussandamica, 
  Melvill 
  & 
  Standen. 
  

  

  Syrnola 
  mussandamica, 
  Melvill 
  & 
  Standen, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  

   vol. 
  xii, 
  p. 
  304, 
  fol. 
  xxii, 
  fig. 
  1, 
  1903. 
  

  

  Ifah.—V.Gr. 
  Gulf 
  of 
  Oman. 
  

  

  Mussandam, 
  just 
  at 
  the 
  entrance 
  into 
  the 
  Persian 
  Gulf. 
  A 
  beautiful 
  

   delicate 
  white 
  shell, 
  which 
  perhaps 
  would 
  be 
  considered 
  best 
  relegated 
  

   to 
  Styloptygma, 
  Adams. 
  

  

  Styloptygma 
  BEATRIX, 
  n.sp. 
  PI. 
  IV, 
  Fig. 
  4. 
  

  

  S. 
  testa 
  gracili, 
  attenuato-fusiformi, 
  alba, 
  vitrea, 
  subpellucida, 
  

   delicata, 
  nitida, 
  anfractibus 
  12-14, 
  quorum 
  apicales 
  duo 
  heterostrophi, 
  

   vitrei, 
  cteteris 
  undique 
  arete 
  et 
  delicatissime 
  spiraliter 
  striatis, 
  in 
  

   speciminibus 
  pluribus 
  ad 
  medium 
  zonula 
  interna 
  obscura 
  praeditis, 
  

   plerumque 
  subventricosis, 
  prsecipue 
  medios 
  apud 
  anfractus, 
  duobus 
  

   ultimis 
  ssepius 
  rectis, 
  ultimo 
  pauUum 
  prolongate, 
  apertura 
  oblongo- 
  

   ovata, 
  labro 
  paullum 
  effuso, 
  margine 
  columellari, 
  praecipue 
  ad 
  basin, 
  

   squarrose 
  incrassatulo, 
  columella 
  uniplicata. 
  

  

  Long. 
  9, 
  lat. 
  2 
  mm., 
  sp. 
  maj. 
  

   ,, 
  6, 
  ,, 
  1-75 
  ,, 
  min. 
  

  

  Hah. 
  — 
  Persian 
  Gulf, 
  off 
  Mussandam, 
  at 
  50 
  fathoms 
  (April, 
  1910). 
  

  

  Several 
  examples 
  of 
  a 
  delicate, 
  attenuate, 
  graceful 
  shell, 
  pellucent 
  

   white, 
  twelve 
  or 
  more 
  whorled, 
  of 
  which 
  certain 
  of 
  the 
  centrally 
  

   situated 
  ones 
  are 
  more 
  or 
  less 
  tumid, 
  two 
  lowest, 
  however, 
  being 
  

   almost 
  straight. 
  The 
  surface 
  is 
  uniformly 
  most 
  delicately 
  spirally 
  

   striate 
  ; 
  in 
  the 
  centre 
  of 
  the 
  lower 
  whorls 
  especially, 
  an 
  internal 
  

   sub-pellucent 
  median 
  band 
  is, 
  in 
  certain 
  lights, 
  observable. 
  Allied 
  to 
  

   S. 
  typicum, 
  Tryon, 
  from 
  the 
  Philippines, 
  but 
  in 
  this 
  species 
  the 
  apical 
  

   whorls 
  are 
  more 
  rapidly 
  contracted, 
  so 
  as 
  to 
  become 
  almost 
  caudate, 
  

   and 
  a 
  central 
  sulcus 
  is 
  to 
  be 
  found 
  on 
  the 
  body-whorl. 
  Several 
  

   examples 
  were 
  dredged, 
  all 
  alike 
  save 
  in 
  size. 
  

  

  