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  DESCRIPTION 
  OF 
  TSERSITES 
  {GLTPTOEHAGADA) 
  HILLIERI, 
  

   N.SP., 
  FROM 
  SOUTH 
  CENTRAL 
  AUSTRALIA. 
  

  

  Ey 
  E. 
  A. 
  Smith. 
  

  

  Read 
  \Wi 
  January, 
  1910. 
  

  

  Among 
  a 
  number 
  of 
  shells 
  from 
  the 
  neighbourhood 
  of 
  Hermannsburg, 
  

   South 
  Central 
  Australia, 
  presented 
  to 
  the 
  British 
  Museum 
  by 
  H. 
  J. 
  

   Hillier, 
  Esq., 
  there 
  were 
  several 
  specimens 
  of 
  a 
  depressed 
  carinated 
  

   Helicoid 
  form 
  which 
  appears 
  to 
  be 
  undescribed. 
  I 
  have 
  named 
  the 
  

   species 
  after 
  Mr. 
  Hillier, 
  who 
  has 
  presented 
  to 
  the 
  National 
  Collection 
  

   various 
  zoological 
  specimens 
  of 
  considerable 
  interest. 
  

  

  Thersites 
  (Gltptoehagada) 
  Hillieei, 
  n.sp. 
  

  

  Testa 
  orbicularis, 
  depressa, 
  carinata, 
  minute 
  perforata, 
  pallide 
  

   f 
  uscescens, 
  vel 
  albida 
  ; 
  spira 
  depresse 
  conoidea, 
  ad 
  apicem 
  obtusa 
  ; 
  

   anfractus 
  sex, 
  lente 
  accrescentes, 
  ad 
  suturam 
  carinata, 
  lineis 
  incre- 
  

   menti 
  tenuibus 
  sti'iati, 
  superiores 
  2-3 
  leviter 
  convexi, 
  cseteri 
  plani, 
  

   declives, 
  ultiraus 
  infra 
  peripheriam 
  acute 
  carinatam 
  convexiusculus, 
  

  

  antice 
  baud 
  descendens; 
  apertura 
  angulatim 
  lunata 
  ; 
  peristomiura 
  

   leviter 
  incrassatum 
  et 
  reflexum, 
  marginibus 
  remotis, 
  callo 
  tenui 
  

   junctis, 
  basali 
  ad 
  insertionem 
  paulo 
  dilatato. 
  Diam. 
  maj. 
  18, 
  min. 
  

   16'5mm.; 
  alt. 
  7 
  mm. 
  

  

  This 
  is 
  a 
  depressed, 
  acutely" 
  carinate 
  species, 
  like 
  T. 
  Kooringensis^ 
  

   Angas, 
  but 
  with 
  much 
  narrower 
  and 
  more 
  slowly 
  increasing 
  whorls, 
  

   and 
  not 
  exhibiting 
  the 
  wrinkled 
  sculpture 
  of 
  that 
  species. 
  

  

  T. 
  Hotvardi, 
  Angas, 
  from 
  the 
  same 
  region, 
  has 
  fewer 
  whorls 
  and 
  is 
  

   widely 
  umbilicated. 
  

  

  