﻿202 
  PROCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIETY. 
  

  

  impressis, 
  iiiidique 
  longitudinaliter 
  obliquicostatis, 
  interstitiis 
  spiraliter 
  

   arete 
  striatulis, 
  ultimo 
  anfractu 
  ad 
  basim, 
  infra 
  peripheriam 
  evanidis, 
  

   apertura 
  ovata, 
  peristomate 
  fere 
  continuo, 
  incrassatulo, 
  columella 
  

   excavata, 
  obscure 
  plicata. 
  Long. 
  2, 
  lat. 
  "50 
  mm. 
  

  

  Hah. 
  — 
  Off 
  Karachi 
  Harbour, 
  

  

  A 
  very 
  elegant 
  but 
  extremely 
  small 
  turreted 
  species, 
  near 
  

   P. 
  tenerrima 
  and 
  thelxinoa, 
  Melv., 
  or 
  Mehilli, 
  Dautz. 
  & 
  Fisch.^ 
  The 
  

   smooth 
  longitudinal 
  ribs 
  are 
  proportionately 
  thick, 
  and 
  the 
  spiral 
  

   interstitial 
  striation 
  well 
  marked. 
  

  

  Pyegtjlina 
  polemica, 
  n.sp. 
  PI. 
  YI, 
  Fig. 
  10. 
  

  

  P. 
  testa 
  minutissima, 
  tenui, 
  alba, 
  nitida, 
  delicata, 
  anfractibus 
  4i^, 
  

   quorum 
  apicales 
  magni, 
  bulbosi, 
  laevissimi, 
  ceeteris 
  tribus 
  magnopere 
  

   gradatulis, 
  undique 
  longitudinaliter 
  costatis, 
  costis 
  anfractus 
  ultimi 
  

   circiter 
  16, 
  interstitiis, 
  simul 
  ac 
  costis, 
  Isevibus, 
  anfractu 
  ultimo 
  ad 
  

   medium 
  spiraliter 
  unilirato, 
  costis 
  apud 
  suturas 
  angulati, 
  gemmulatis, 
  

   crassiusculis, 
  prominulis, 
  apertura 
  ovata, 
  peristomate 
  incrassato, 
  extus 
  

   supra 
  unidenticulato, 
  columella 
  uniplicata. 
  Long. 
  1'75, 
  lat. 
  "075 
  mm. 
  

  

  Hab.—O^ 
  Bombay 
  (F. 
  W. 
  Townsend). 
  

  

  One 
  of 
  the 
  minutest 
  of 
  shells, 
  but 
  very 
  decided 
  in 
  design 
  and 
  

   character 
  of 
  contour. 
  The 
  sharp 
  median 
  line 
  at 
  the 
  periphery 
  of 
  the 
  

   body-whorl 
  is 
  noteworthy, 
  the 
  longitudinal 
  ribs, 
  fairly 
  numerous, 
  are 
  

   beaded 
  at 
  the 
  upper 
  angle, 
  and 
  form 
  an 
  encircling 
  coronal 
  round 
  the 
  

   whorls. 
  The 
  nuclear 
  whorls 
  are 
  large, 
  proportionately 
  speaking, 
  

   bulbous, 
  and 
  smooth. 
  Only 
  two 
  examples 
  have 
  been 
  yet 
  found. 
  

  

  PXEGULIlSrA 
  PYEGOMELLA, 
  Melvill. 
  

  

  PyrguUna 
  pyrgomella, 
  Melvill, 
  Proc. 
  Malac. 
  Soc, 
  vol. 
  ii, 
  p. 
  112, 
  

  

  pi. 
  viii, 
  fig. 
  24. 
  

   Odostomia 
  {PyrguUna) 
  pyrgomella, 
  Melvill 
  & 
  Standen, 
  Proc. 
  Zool. 
  Soc, 
  

   vol. 
  ii, 
  p. 
  396, 
  1901. 
  

  

  JSah. 
  — 
  L 
  Karachi, 
  on 
  rocks 
  at 
  low 
  tide, 
  very 
  rare 
  ; 
  Bombay 
  

   (Abercrombie). 
  

  

  Specimens 
  from 
  the 
  latter 
  locality, 
  now 
  in 
  the 
  Manchester 
  Museum, 
  

   vary 
  in 
  size 
  and 
  length. 
  Its 
  conspicuous 
  columellar 
  plait 
  distinguishes 
  

   it 
  from 
  Turhonilla 
  templaris, 
  Melvill. 
  Both 
  these 
  species 
  are 
  elegant 
  

   scalariform 
  shells. 
  

  

  PrRGULINA 
  EEDEMPTA, 
  n.Sp. 
  PI. 
  YI, 
  Fig. 
  11. 
  

  

  P. 
  testa 
  attenuata, 
  turrito-gradata, 
  alba, 
  nitida, 
  anfractibus 
  ad 
  8, 
  

   quorum 
  apicales 
  duo 
  vitrei, 
  bulbosi, 
  heterostrophi, 
  cseteris 
  apud 
  

   medium 
  constrictis, 
  longitudinaliter 
  costulatis, 
  costulis 
  arctis, 
  super- 
  

   ficialibus, 
  indistinctis, 
  supra, 
  apud 
  suturas, 
  spiraliter 
  gemmulatis, 
  ultimo 
  

   anfractu 
  fere 
  recto, 
  costulis 
  infra 
  peripheriam 
  evanidis, 
  versus 
  basim 
  

   Isevi, 
  nitido, 
  apertura 
  ovata, 
  peristomate 
  tenui, 
  columella 
  fortiter 
  

   uniplicata. 
  Long. 
  4, 
  lat. 
  1 
  mm. 
  

  

  ' 
  Jouru. 
  de 
  Conch., 
  vol. 
  liv, 
  p. 
  185, 
  pi. 
  vi, 
  fig. 
  10. 
  

  

  