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

  

  C. 
  cymhiformis 
  K. 
  

  

  ScHM. 
  Atl. 
  Plate 
  X, 
  fig. 
  13. 
  

  

  Eare: 
  Gotland: 
  Tjeldervik, 
  Norrtelje, 
  Helsingfors. 
  

  

  C. 
  parva 
  (Sm.). 
  

  

  ScHM. 
  Atl. 
  Pl. 
  X, 
  fig:s 
  14, 
  15. 
  

  

  Fresh 
  water 
  species 
  rarely 
  occnrring 
  in 
  slightly 
  brackisli 
  

   Avater. 
  Harbour 
  of 
  Travemllnde 
  (Ostsee 
  Bxp. 
  1871, 
  p. 
  177), 
  

   Gotland 
  (Cl. 
  & 
  Moll. 
  Diat. 
  N:o 
  86). 
  

  

  C. 
  Boeckii 
  K. 
  

  

  ScHM. 
  Atl. 
  PL 
  X, 
  fig. 
  11. 
  

  

  Gotland: 
  Klintehamn, 
  Helsingfors, 
  Rathan 
  (Cl.). 
  

  

  C. 
  Cistula 
  Hempk. 
  

  

  ScHM. 
  Atl. 
  Pl. 
  X, 
  fig:s 
  25, 
  26. 
  

  

  Fresh 
  water 
  species 
  that 
  occurs 
  rather 
  commonly 
  as 
  far 
  

   to 
  tlie 
  south 
  as 
  on 
  the 
  shore 
  of 
  Upland 
  and 
  in 
  the 
  Finnisli 
  

   Lay, 
  but 
  only 
  the 
  long 
  var. 
  represented 
  in 
  Schm. 
  Atl. 
  Pl. 
  X, 
  

   fig. 
  26. 
  Sonth 
  of 
  Upland 
  it 
  seems 
  to 
  be 
  very 
  rare. 
  The 
  

   short 
  form, 
  — 
  Schm. 
  Atl. 
  Pl. 
  X, 
  fig. 
  25 
  — 
  , 
  I 
  have 
  found 
  

   only 
  in 
  a 
  gathering 
  from 
  Rostock. 
  

  

  C. 
  gastroides 
  K. 
  

  

  Schm. 
  Atl. 
  Pl. 
  IX, 
  fig:s 
  1, 
  2. 
  

  

  Fresh 
  water 
  species, 
  in 
  almost 
  fresh 
  water: 
  Rostock. 
  

  

  C. 
  lielvetica 
  K. 
  

  

  Gkun. 
  Aret. 
  Diat. 
  p. 
  26. 
  

  

  Schm. 
  Atl. 
  Pl. 
  X, 
  fig. 
  18. 
  

  

  In 
  the 
  Gulf 
  of 
  Bothnia: 
  Haparanda 
  (Cl.), 
  Rathan 
  (Cl.), 
  

   Ångermanland: 
  Näske 
  (Cl.). 
  South 
  of 
  it 
  very 
  rare: 
  Blidö, 
  

   in 
  the 
  slightly 
  brackish 
  water 
  of 
  Rostock 
  and 
  Travemllnde. 
  

  

  C. 
  turgidula 
  Geun. 
  

  

  Schm. 
  Atl. 
  Pl. 
  IX, 
  fig. 
  25. 
  

  

  In 
  the 
  slightly 
  brackish 
  water 
  at 
  Rostock. 
  

  

  C. 
  afjinis 
  K. 
  

  

  VH.' 
  D. 
  B. 
  Pl. 
  II, 
  fig. 
  19. 
  

  

  Giilf 
  of 
  Bothnia: 
  Haparanda 
  (Cl.), 
  Rathan 
  (Cl.), 
  Ånger- 
  

   manland: 
  Näske 
  (Cl), 
  Helsingfors. 
  

  

  