﻿BIHANG 
  TILL 
  K. 
  SV. 
  VET.-AKAD. 
  HANDL. 
  BAND 
  6. 
  N:0 
  21. 
  37 
  

  

  iV. 
  circumsuta 
  Bail. 
  

   Aret. 
  Diat. 
  p. 
  77. 
  

  

  Xot 
  common. 
  In 
  almost 
  fresli 
  water. 
  Södermanland: 
  

   Häringe, 
  Södertelje 
  (Cl.), 
  Upland: 
  Vaxholm 
  (Cl.), 
  Rådmansö. 
  

   Subfoss.: 
  diatomaceous 
  deposit 
  at 
  Christianstad. 
  

  

  N. 
  duhia 
  Sm. 
  

  

  In 
  the 
  Baltic 
  (Cl. 
  Sv. 
  o. 
  N. 
  Diat.). 
  

  

  N. 
  tliermalis 
  K. 
  

   Rathan 
  (Cl.). 
  

   v, 
  minor 
  Hilse. 
  

   Helsingfors. 
  

  

  N. 
  hyhrida 
  Getjn. 
  

  

  In 
  the 
  Baltic 
  (Aret. 
  Diat. 
  p. 
  79); 
  Gotland: 
  Slite 
  (Cl.). 
  

  

  A^. 
  epitliemioides 
  Grun. 
  

   Malmö 
  (Cl.). 
  

  

  A^. 
  Denticula 
  Grun. 
  

   Rathan 
  (Cl.). 
  

  

  A^. 
  Scalaris 
  Sm. 
  

  

  Sm. 
  Syn. 
  Pl. 
  XIV, 
  fig. 
  115. 
  

  

  Sölvesborg, 
  Södertelje 
  (Cl.), 
  Vaxholm 
  (Cl.), 
  Upland: 
  

   Rådmansö. 
  

  

  Never 
  failing 
  in 
  the 
  blackclay, 
  in 
  the 
  silty 
  clay 
  and 
  in 
  

   the 
  silt 
  from 
  the 
  peat 
  mosses 
  in 
  eastern 
  Upland, 
  and 
  in 
  the 
  

   bathing 
  silt 
  from 
  Norrtelje, 
  Furusund, 
  Dalarö 
  and 
  Ronneby. 
  

  

  A^. 
  socialis 
  Geeg. 
  v. 
  baltica 
  Grun. 
  

   In 
  the 
  Baltic 
  (Aret. 
  Diat. 
  p. 
  85). 
  

  

  A^. 
  paradoxa 
  (Gmel) 
  Grun. 
  

  

  N. 
  paxillifer 
  O. 
  F. 
  Mull. 
  Heib. 
  Consp. 
  p. 
  113. 
  

  

  Not 
  rare 
  in 
  the 
  southern 
  part 
  of 
  the 
  Baltic: 
  Malmö, 
  

   Sölvesborg, 
  Kalmar, 
  Gotland: 
  Klintehamn; 
  very 
  rare 
  north 
  

   of 
  the 
  Kalmar 
  Sound: 
  Helsingfors. 
  

  

  A^. 
  sigmoidea 
  Ehb. 
  

   Södertelje 
  (Cl.). 
  

  

  A'^. 
  Brehissonii 
  Sm. 
  

  

  Slightly 
  brackish 
  water: 
  Kiel 
  (Aret. 
  Diat. 
  p. 
  91). 
  

  

  A^. 
  spectabilis 
  Sm. 
  

  

  In 
  the 
  Baltic 
  (Schum. 
  1867). 
  

  

  