﻿150 
  I'KOCKEDINGS 
  OF 
  THK 
  M 
  ALACOLOGICA 
  L 
  SOCIKXr. 
  

  

  islands. 
  Many 
  wliite 
  examples 
  occurred. 
  All 
  the 
  examples 
  are 
  tlie 
  

   small 
  northern 
  form. 
  

  

  F. 
  nitidula 
  (Drap.). 
  — 
  Not 
  uncommon 
  on 
  "Flotta 
  and 
  South 
  llonalds- 
  

   hay. 
  The 
  examples 
  are 
  small, 
  the 
  largest 
  being 
  8 
  mm. 
  in 
  diameter. 
  

  

  Arion 
  ater 
  (Linn.). 
  — 
  Very 
  common 
  in 
  Orkney 
  and 
  Shetland. 
  In 
  

   the 
  former 
  group 
  it 
  varied 
  considerably, 
  but 
  in 
  Shetland 
  most 
  

   examples 
  are 
  typical. 
  Abundant 
  round 
  Cromarty 
  Firth. 
  

  

  A. 
  mtermedius, 
  Norm. 
  — 
  Abundant 
  in 
  Orkney, 
  scarce 
  in 
  East 
  Koss, 
  

   and 
  in 
  Shetland 
  only 
  at 
  the 
  ruined 
  kirk 
  at 
  Voe. 
  

  

  Pyramidula 
  rotmidata 
  (Miill.). 
  — 
  At 
  Invergorden 
  only 
  at 
  the 
  back 
  of 
  

   Kin 
  Craig 
  House. 
  On 
  South 
  Ilonaldshay 
  it 
  occurred 
  under 
  boulders 
  

   near 
  the 
  seashore 
  at 
  Sandwick 
  and 
  at 
  Hoxa 
  Broch. 
  On 
  Mainland 
  it 
  

   was 
  abundant 
  on 
  the 
  wall 
  of 
  Holm 
  kirkyard. 
  In 
  all 
  the 
  examples 
  the 
  

   costulations 
  are 
  less 
  pronounced 
  than 
  those 
  of 
  the 
  South 
  of 
  England. 
  

  

  Helicella 
  caperata 
  (Mont.). 
  — 
  This 
  species 
  occurred 
  only 
  on 
  the 
  

   road 
  from 
  Alness 
  to 
  Iiivergordon, 
  where 
  it 
  Avas 
  abundant. 
  The 
  

   examples 
  are 
  fairly 
  large, 
  6 
  X 
  10 
  mm. 
  Possibly 
  an 
  accidental 
  intro- 
  

   duction. 
  

  

  Arianta 
  arhustoruin 
  (Linn.). 
  — 
  In 
  Orknej' 
  it 
  was 
  found 
  on 
  Flotta, 
  

   where 
  it 
  is 
  apparently 
  restricted 
  to 
  the 
  north-east 
  corner 
  of 
  the 
  kirk- 
  

   yard, 
  where 
  it 
  is 
  abundant. 
  In 
  size 
  the 
  shells 
  range 
  from 
  15 
  X 
  1 
  9*5 
  mm. 
  

   to 
  18 
  X 
  23 
  mm. 
  They 
  are 
  fairly 
  solid 
  and 
  all, 
  save 
  one 
  example, 
  were 
  

   banded. 
  

  

  At 
  Water 
  Sound, 
  South 
  Ilonaldshay, 
  a 
  fair 
  number 
  of 
  examples 
  

   were 
  found 
  in 
  beds 
  of 
  nettles, 
  and 
  these 
  M'ere 
  rather 
  It^rge, 
  very 
  thin 
  

   shelled, 
  and 
  almost 
  all 
  were 
  bandless 
  and 
  very 
  light 
  in 
  colour 
  (the 
  

   var. 
  virescens, 
  Tayl.). 
  A 
  young 
  scalariform 
  example 
  was 
  also 
  

   obtained 
  thence. 
  

  

  In 
  Shetland 
  examples 
  were 
  obtained 
  at 
  EUwick, 
  at 
  the 
  head 
  of 
  

   Solium 
  Voe, 
  in 
  the 
  ruins 
  of 
  the 
  old 
  kirk 
  at 
  Voe, 
  and 
  in 
  the 
  broch 
  of 
  

   Clickamin 
  near 
  Lerwick. 
  The 
  Shetland 
  shells 
  are 
  fairly 
  large 
  in 
  

   size 
  and 
  typical 
  in 
  colour. 
  This 
  species 
  is 
  probably 
  widely 
  but 
  

   sparingly 
  distributed 
  in 
  suitable 
  localities. 
  

  

  Helix 
  Jiortensis, 
  Miill. 
  — 
  In 
  East 
  lloss 
  this 
  species 
  occurred 
  very 
  

   abundantly 
  on 
  a 
  wall 
  bordering 
  tlie 
  road 
  from 
  Alness 
  to 
  Invergordon, 
  

   and 
  a 
  few 
  examples 
  were 
  also 
  seen 
  at 
  Cromarty 
  and 
  Nigg. 
  

  

  On 
  Flotta 
  the 
  species 
  was 
  only 
  found 
  in 
  one 
  spot 
  on 
  the 
  sea-cliffs 
  

   facing 
  South 
  llonaldsliay 
  ; 
  the 
  examples 
  w^ere 
  thin 
  shelled 
  and 
  

   weather 
  beaten. 
  On 
  Mainland, 
  Orkney, 
  it 
  was 
  plentiful 
  near 
  Holm. 
  

  

  The 
  examples 
  from 
  Orkney 
  exhibit 
  less 
  variation 
  both 
  as 
  to 
  

   banding 
  and 
  coloration 
  than 
  those 
  from 
  East 
  lloss. 
  

  

  East 
  lloss. 
  

  

  