﻿JONES 
  & 
  KENNAED 
  : 
  NON-MARINE 
  MOLLTJSCA 
  OF 
  E. 
  KOSS, 
  ETC. 
  149 
  

   MUCKLE 
  EOE. 
  

  

  Agriolimax 
  agresiis 
  (Linn.). 
  

   Polita 
  alliaria 
  (Mill.). 
  

   Avion 
  ater 
  (Linn.). 
  

   Limncea 
  pereger 
  {M.\\\\.). 
  

  

  — 
  trmicatula 
  (MiilL). 
  

   Pisidium 
  casertaniim 
  (Poli). 
  

  

  — 
  perso7mtum,^la\\n. 
  

  

  Mainland. 
  

  

  Agriolimax 
  agrestis 
  (Linn.), 
  Voe, 
  Gonfirth. 
  

  

  Vitrina 
  pellticida 
  (MiilL), 
  Voe, 
  Biista, 
  etc. 
  

  

  Vitrea 
  crystallina 
  (MiilL), 
  Voe. 
  

   Polita 
  cellar 
  ia 
  (MiilL), 
  Clickamin 
  Broch. 
  

  

  — 
  alliaria 
  (Mill.), 
  about 
  Soe 
  Water, 
  Voe, 
  Voxter, 
  Busta, 
  etc. 
  

   Arion 
  ater 
  (Linn.), 
  common. 
  

  

  — 
  intermedins, 
  Norm., 
  Voe. 
  

  

  Arianta 
  arbustormn 
  (Linn.), 
  Ellwick, 
  Voe, 
  Lerwick. 
  

   Lauria 
  cylindracea 
  (Da 
  C), 
  Voe. 
  

  

  Limn(Ba 
  pereger 
  (MiilL), 
  Smerla 
  Water, 
  Busta 
  Loch, 
  Man- 
  

   gaster 
  Voe, 
  Olna, 
  Mill 
  'Lake, 
  Gonfirth. 
  

  

  — 
  truneatula 
  (MiilL), 
  Voe, 
  Foulawick. 
  

  

  Pisidium 
  casertamim 
  (Poli), 
  Olna, 
  Voe, 
  Mangaster 
  Voe, 
  

  

  Foulawick, 
  Petta 
  Water, 
  Boys 
  Water 
  at 
  Busta. 
  

   — 
  pers.07iatum. 
  Malm, 
  Foulawick, 
  Boys 
  Water, 
  Mangaster 
  Voe. 
  

  

  — 
  pusillum, 
  Jenyns, 
  Boys 
  Water. 
  

  

  — 
  milium, 
  Held., 
  Voe. 
  

  

  — 
  lilljehorgii, 
  Cless., 
  Busta, 
  Boys 
  Water, 
  Mangaster 
  Voe. 
  

  

  Notes 
  on 
  the 
  Species. 
  

  

  Agriolimax 
  agrestis 
  (Linn.). 
  — 
  A 
  common 
  species 
  in 
  all 
  the 
  districts 
  

   visited. 
  It 
  occurs 
  from 
  the 
  hill-tops 
  to 
  the 
  sea 
  in 
  Shetland, 
  and 
  is 
  

   especially 
  abundant 
  in 
  and 
  around 
  ruinous 
  buildings 
  in 
  both 
  Orkney 
  

   and 
  Shetland. 
  

  

  Agriolimax 
  Icevis 
  (MiilL). 
  — 
  Not 
  at 
  all 
  uncommon 
  at 
  Widewall 
  Bay, 
  

   South 
  Bonaldshay, 
  on 
  Flotta, 
  and 
  at 
  Honton 
  and 
  St. 
  Mary's 
  on 
  the 
  

   Mainland 
  of 
  Orkney. 
  

  

  Vitri7ia 
  pellucida 
  CMuW.). 
  — 
  Common 
  in 
  Orkney 
  and 
  Shetland 
  and 
  

   not 
  uncommon 
  about 
  Cromarty. 
  Examples 
  from 
  Orkney 
  have 
  been 
  

   examined 
  anatomically 
  by 
  E. 
  W. 
  Bowell 
  and 
  found 
  to 
  be 
  this 
  species. 
  

   Vitrea 
  crystallina 
  (MiilL). 
  — 
  Found 
  at 
  Widewall 
  Bay, 
  Soutli 
  

   Bonaldshay, 
  and 
  not 
  uncommon 
  on 
  Burray. 
  In 
  Shetland, 
  only 
  at 
  

   Voe 
  in 
  the 
  ruins 
  of 
  the 
  old 
  kirk. 
  All 
  the 
  examples 
  were 
  immature 
  ; 
  

   they 
  may 
  be 
  referred 
  to 
  the 
  var. 
  contracta, 
  West. 
  

  

  Polita 
  cellaria 
  (MiilL). 
  — 
  Sparsely 
  at 
  Flotta 
  kirkyard, 
  and 
  in 
  some 
  

   abundance 
  amongst 
  heaps 
  of 
  stones 
  on 
  a 
  sandy 
  beach 
  at 
  Hoxa, 
  South 
  

   llonaldshay. 
  On 
  Mainland 
  a 
  few 
  examples 
  were 
  found 
  at 
  St. 
  Mary's 
  

   and 
  near 
  Holm. 
  In 
  Shetland, 
  only 
  at 
  Clickamin 
  Broch 
  near 
  Lerwick. 
  

   The 
  shells 
  are 
  fairly 
  large 
  and 
  somewhat 
  dark-coloured. 
  

  

  P. 
  alliaria 
  (Mill.). 
  — 
  The 
  commonest 
  Helicoid 
  in 
  both 
  groups 
  of 
  

  

  