﻿mklvill: 
  pyramidellid.e 
  of 
  the 
  Persian 
  gulf, 
  etc. 
  197 
  

  

  Messrs. 
  Dall 
  & 
  Bartsch, 
  authors 
  of 
  the 
  subgeneric 
  title 
  Egilina. 
  

   I 
  have 
  specimens 
  of 
  P. 
  Mariella 
  in 
  my 
  own 
  collection 
  from 
  Dr. 
  A. 
  

   Adams' 
  Japanese 
  gatherings 
  ; 
  these 
  show 
  it 
  to 
  he 
  of 
  ranch 
  the 
  same 
  

   build 
  as 
  P. 
  calUsta, 
  but 
  smaller, 
  sutural 
  canaliculations 
  not 
  so 
  sharply 
  

   defined, 
  lip 
  not 
  so 
  squarrose, 
  basal 
  keels 
  less 
  pronounced. 
  The 
  

   specimens 
  redescribed 
  by 
  Dall 
  & 
  Bartsch 
  measure 
  thus: 
  long. 
  1-8, 
  

   diam. 
  1 
  mm. 
  Mine 
  are 
  a 
  little 
  larger, 
  say 
  2 
  x 
  1 
  mm. 
  

  

  I 
  believe 
  that 
  several 
  species 
  described 
  of 
  late 
  years 
  should 
  be 
  either 
  

   merged 
  with 
  Mariella 
  or 
  callista, 
  or 
  placed 
  in 
  the 
  same 
  sub-genus. 
  

   Imprimis, 
  Odontostomia 
  {Pyrgulina) 
  Mayi, 
  Tate, 
  ^ 
  from 
  D'Entrecasteaux 
  

   Channel, 
  Tasmania, 
  of 
  which 
  I 
  possess 
  a 
  co-type, 
  is 
  exceedingly 
  near; 
  

   the 
  only 
  distinguishing 
  mark 
  I 
  can 
  find, 
  judging 
  from 
  my 
  specimens, 
  

   is 
  that 
  the 
  costse 
  are 
  not 
  so 
  oblique 
  as 
  in 
  P. 
  callista. 
  

  

  Pyrgulina 
  perspectiva, 
  Hedley,^ 
  judging 
  from 
  figure 
  and 
  description, 
  

   I 
  consider 
  identical 
  with 
  young 
  examples 
  of 
  P. 
  callista, 
  obtained 
  at 
  

   Bombay. 
  These 
  are 
  interstitially 
  spirally 
  striate. 
  In 
  all 
  the 
  more 
  

   mature 
  examples 
  this 
  striation 
  seems 
  quite 
  obsolete. 
  And 
  likewise 
  

   Vyrgtdina 
  Bartschi, 
  Dautz. 
  & 
  Fisch.,' 
  a 
  species 
  intermediate 
  in 
  size, 
  

   seems 
  nearer 
  to 
  P. 
  callista 
  than 
  to 
  P. 
  Mariella, 
  both 
  as 
  regards 
  

   character 
  of 
  ribs 
  and 
  subangulate 
  mouth, 
  and 
  I 
  consider 
  it 
  a 
  synonym. 
  

  

  PrEGiJLiNA 
  (Egilina) 
  c^lata, 
  A. 
  Adams. 
  

  

  Pyrgnlina 
  ccelata, 
  A. 
  Adams, 
  Journ. 
  Linn. 
  Soc, 
  vol. 
  vii, 
  p. 
  4 
  ; 
  Ann. 
  

  

  Mag. 
  Nat. 
  Hist., 
  1861, 
  p. 
  303. 
  

   Turlonilla 
  {Balelis) 
  ccelatior, 
  Dall 
  & 
  Bartsch, 
  Proc. 
  U.S. 
  Nat. 
  Mus., 
  

   vol. 
  xxx, 
  p. 
  347, 
  pi. 
  xvii, 
  fig. 
  9. 
  

  

  Hah. 
  — 
  I. 
  Karachi. 
  

  

  A 
  larger 
  shell 
  than 
  P. 
  callista 
  in 
  all 
  its 
  parts, 
  in 
  addition 
  to 
  which, 
  

   owing 
  to 
  a 
  median 
  constriction 
  of 
  whorl, 
  the 
  ribs 
  assume 
  a 
  slightly 
  

   beaded 
  appearance 
  on 
  either 
  side 
  of 
  the 
  sutures. 
  Otherwise, 
  the 
  

   characters 
  of 
  sculpture 
  are 
  much 
  the 
  same. 
  It 
  is 
  well 
  figured 
  by 
  

   Dall 
  & 
  Bartsch 
  (loc. 
  cit., 
  pi. 
  xvii, 
  fig. 
  9), 
  but 
  we 
  cannot 
  quite 
  

   understand 
  why 
  it 
  was 
  placed 
  in 
  the 
  genus 
  Turhonilla, 
  with 
  a 
  new 
  

   sub-genus 
  {Babelis) 
  specially 
  constructed 
  for 
  it 
  ; 
  the 
  columellar 
  plait 
  

   is 
  strongly 
  developed, 
  and 
  the 
  sculpture 
  and 
  general 
  build 
  harmonize 
  

   throughout 
  with 
  Egilina. 
  The 
  type 
  is 
  Japanese. 
  

  

  Pyegulina 
  (Egilina) 
  Chasteeiana, 
  n.sp. 
  PI. 
  VI, 
  Figs. 
  2, 
  la. 
  

  

  P. 
  testa 
  parva, 
  conico-fusiformi, 
  tenui, 
  olivaceo-alba, 
  anfractibus 
  7, 
  

   (piorum 
  apicales 
  2 
  vitrei 
  — 
  in 
  nostro 
  unico 
  specimine 
  fracti 
  — 
  caeteris 
  

   ad 
  suturas 
  ■ 
  baud 
  prof 
  unde 
  canaliculatis, 
  undique 
  longitudinaliter 
  

   costatis, 
  costis 
  anfractus 
  apud 
  supernos 
  rectis, 
  penultimo 
  et 
  ultimo 
  

   obliquis 
  et 
  flexuosis, 
  interstitiis 
  Isevibus, 
  ultimo 
  anfractu 
  infra 
  

   peripheriam 
  ad 
  basim 
  acute 
  sulcato, 
  sulcis 
  ad 
  6, 
  et 
  decussate, 
  

   interstitiis 
  quadratis, 
  apertura 
  magna, 
  ovato-oblonga, 
  labro 
  tenui, 
  

   columella 
  leniter 
  uniplicata. 
  Long. 
  3 
  "50, 
  lat. 
  1'25 
  mm. 
  

  

  ''■ 
  Trans. 
  Eoy. 
  Soc. 
  S. 
  Australia, 
  1898, 
  p. 
  84, 
  pi. 
  ii, 
  fig. 
  6. 
  

   2 
  Proc. 
  Linn. 
  Soc. 
  N.S.W., 
  pt. 
  i, 
  p. 
  10, 
  pi. 
  iii, 
  fig. 
  33, 
  1902. 
  

   ' 
  Journ. 
  de 
  Conch., 
  vol. 
  liv, 
  p. 
  191, 
  pi. 
  vii, 
  fig. 
  1. 
  

  

  VOL. 
  IX. 
  — 
  SEl'TEMBEK, 
  1910. 
  14 
  

  

  