﻿SOWERBT 
  : 
  ON 
  AMPULLARIID^. 
  

  

  63 
  

  

  DESCRIPTION 
  OF 
  NEW 
  SPECIES. 
  

  

  Ampullaeia 
  alucijtans. 
  

  

  n.sp. 
  

  

  Testa 
  late 
  turbinata, 
  mediocriter 
  iimbilicata, 
  fusco-olivacea, 
  fasciis 
  

   numerosis 
  angustis 
  nigro-fuscis 
  ornata, 
  longitudinaliter 
  irregulariter 
  

   plicata 
  et 
  striata, 
  striis 
  transversis 
  subtilissimis 
  decussata 
  ; 
  spira 
  

   brevis 
  ; 
  anfractus 
  convexi, 
  supra 
  planulati 
  ; 
  ultimus 
  latiusculus, 
  

   superne 
  rotunde 
  aogulatus, 
  supra 
  angulum 
  leviter 
  depressus, 
  infra 
  

   angulum 
  rotunde 
  convexus, 
  basim 
  versus 
  leviter 
  contractus 
  ; 
  apertura 
  

   latiuscula, 
  intus 
  fasciata 
  ; 
  peristoma 
  tenue. 
  Long. 
  23, 
  diam. 
  23 
  mm.; 
  

   apertura, 
  long. 
  22, 
  lat. 
  12 
  mm. 
  

  

  Sal. 
  — 
  Ceylon. 
  

  

  This 
  species 
  might 
  easily 
  be 
  mistaken 
  for 
  the 
  Brazilian 
  A. 
  decussata, 
  

   Moricand, 
  to 
  which 
  it 
  bears 
  a 
  remarkably 
  close 
  resemblance. 
  Its 
  

   transverse 
  striae 
  are, 
  however, 
  much 
  less 
  conspicuous, 
  and 
  it 
  is, 
  of 
  

   course, 
  far 
  removed 
  from 
  that 
  species 
  by 
  its 
  eastern 
  habitat 
  and 
  shelly 
  

   operculum. 
  

  

  Amptjllaeia 
  nigricans, 
  n.sp. 
  

  

  Testa 
  ovata, 
  anguste 
  umbilicata, 
  ubique 
  nigro-olivacea, 
  nitens, 
  

   ongitudinaliter 
  irregulariter 
  vix 
  conspicue 
  plicata, 
  et 
  subtilissime 
  

  

  