﻿BIIIANG 
  TILL 
  K. 
  SV. 
  VET.-AKAD. 
  IIANDL. 
  BAND 
  G. 
  'S:0 
  21. 
  49 
  

  

  With 
  tlie 
  main 
  spec: 
  Malmö, 
  Sölvesborg, 
  Helsingforw';, 
  

   Hernösand 
  (Cl.), 
  

  

  M. 
  Jiirgensii 
  K. 
  

  

  M. 
  subflexilis 
  K. 
  Sm. 
  Syn. 
  Pl. 
  LI, 
  f. 
  331. 
  

  

  Veiy 
  common 
  everywherc 
  in 
  the 
  Baltic. 
  

  

  M. 
  nummuloides 
  DiLLW, 
  

   Sm. 
  Syn. 
  Vol. 
  II, 
  p. 
  55, 
  Pl. 
  XLIX, 
  f. 
  329. 
  

   Not 
  so 
  common 
  as 
  the 
  former 
  species. 
  The 
  Sound 
  — 
  

   Gefle, 
  Åbo 
  — 
  Helsingfors. 
  Rare 
  in 
  the 
  Gulf 
  of 
  Bothnia. 
  

  

  M. 
  pimctata 
  Sm. 
  

   Sm. 
  Syn. 
  Pl. 
  LIII, 
  f. 
  339. 
  

  

  Freshwater 
  species 
  found 
  only 
  in 
  almost 
  fresh 
  -n^ater: 
  

   Vaxholm 
  (Cl.), 
  Norrtelje. 
  

  

  M. 
  varians 
  Sm. 
  

  

  Sm. 
  Syn. 
  Pl. 
  

  

  As 
  the 
  former: 
  Norrtelje, 
  Helsingfors. 
  

  

  M. 
  crenulata 
  K. 
  

  

  Sm. 
  Syn. 
  Pl. 
  LHI, 
  fig. 
  337. 
  

  

  As 
  the 
  former. 
  Denmark, 
  in 
  brackish 
  water 
  (Heib. 
  Consp.). 
  

  

  M. 
  arenaria 
  MoOEE. 
  

   Sm. 
  Syn. 
  Pl. 
  LII, 
  fig. 
  334. 
  

  

  Freshwater 
  species: 
  Postock, 
  Södermanland: 
  Häringe, 
  

   Södertelje. 
  

  

  Subfoss.: 
  Upland: 
  in 
  blackclay 
  from 
  Säby, 
  Alunda. 
  

  

  M. 
  Westii 
  Sm. 
  

  

  Sm. 
  Syn. 
  PL 
  LII, 
  fig. 
  333, 
  Vol. 
  II, 
  p. 
  59. 
  

  

  I 
  never 
  saw 
  it 
  living 
  in 
  the 
  Baltic, 
  but 
  found 
  it 
  im- 
  

   bedded 
  in 
  mud 
  at 
  Sölvesborg, 
  Karlshamn, 
  Upland 
  : 
  Rådmansö. 
  

  

  Subfoss.: 
  in 
  bathingsilt 
  from 
  Ronneby, 
  in 
  silt 
  from 
  the 
  

   peatmosses 
  of 
  eastern 
  Upland 
  and 
  in 
  silt}^ 
  clay 
  from 
  the 
  

   same 
  region. 
  

  

  The 
  subfossil 
  Baltic 
  form 
  measures 
  only 
  9 
  — 
  11 
  ," 
  in 
  diam., 
  

   and 
  thus 
  is 
  smaller 
  in 
  size 
  than 
  the 
  marine 
  form. 
  

  

  M. 
  sidcata 
  Ehb. 
  

  

  Orthosira 
  marina 
  Sm. 
  Syn. 
  Pl. 
  LIII, 
  fig. 
  338. 
  

  

  Paralia 
  sulcata 
  Cl. 
  

  

  4 
  

  

  