﻿18 
  JUHLIN-DANNFELT, 
  ON 
  THE 
  DIATOMS 
  OF 
  THE 
  BALTIC 
  SEA. 
  

  

  var. 
  Saxonica 
  (KtJTZ.) 
  Grun. 
  

   Grun. 
  1. 
  cit. 
  

  

  Rare: 
  Rostock, 
  Travemiinde, 
  Sölvesborg, 
  Helsingfors, 
  

   var. 
  Porcellus 
  KtJTZ. 
  

   Grun. 
  1. 
  cit. 
  

  

  Verj 
  commoD 
  everywliere 
  in 
  the 
  Baltic. 
  

   var. 
  prohoscidea 
  Grun. 
  

  

  Grun. 
  Verli. 
  Wien 
  1862, 
  p. 
  329; 
  nec 
  Grun. 
  in 
  VH. 
  D. 
  B. 
  

   Pl. 
  XXI, 
  f. 
  10. 
  

  

  Xotcommon: 
  Sölvesborg, 
  Roslagen, 
  Vesterbotten: 
  Rathan. 
  

  

  E. 
  Argus 
  KtJTZ. 
  

  

  VH. 
  D. 
  B. 
  Pl. 
  XXX, 
  fig:s 
  15—17. 
  

  

  Rare: 
  Gotland: 
  Slite 
  (Cleve), 
  Roslagen. 
  

  

  E. 
  intermedia 
  Hilse. 
  

  

  Rare: 
  Upland: 
  Riddersholni. 
  

  

  E. 
  gibha 
  Ehb. 
  

  

  var. 
  genuina 
  Grun. 
  

  

  Grun. 
  Verh. 
  Wien 
  1862, 
  p. 
  327. 
  

  

  var. 
  vent7'icosa 
  (KtJTZ.) 
  Grun. 
  

  

  Grun. 
  Verh. 
  Wien 
  1862, 
  p. 
  327. 
  

  

  Botli 
  varr. 
  very 
  common 
  at 
  the 
  open 
  coast 
  as 
  well 
  as 
  

   in 
  bays 
  witli 
  almost 
  fresh 
  water. 
  On 
  the 
  contrary 
  var. 
  pa- 
  

   rallela 
  Grun. 
  seems 
  to 
  be 
  quite 
  failing 
  in 
  the 
  Baltic. 
  

  

  E. 
  Sorex 
  KtJTZ. 
  

   Utterly 
  common. 
  

  

  E. 
  gihherula 
  Ehb. 
  

   var. 
  Muscidus 
  K. 
  

  

  Grun. 
  Verh. 
  Wien 
  1862, 
  pag, 
  331. 
  

   Very 
  varying 
  in 
  size. 
  L. 
  0,015 
  — 
  0,05 
  mm. 
  

   Rare: 
  Gotland: 
  Ostergarn 
  (Cleve), 
  Klintehamn, 
  Upland: 
  

   Blidö, 
  Travemiinde 
  (f. 
  minutissima). 
  

   var. 
  rupestris 
  (Sm.) 
  Grun. 
  1. 
  cit. 
  

   Rare: 
  Travemiinde. 
  

  

  E. 
  constricta 
  Sm. 
  

   Sm. 
  Syn. 
  Plate 
  XXX, 
  fig. 
  248. 
  

  

  Very 
  rare: 
  Malmö 
  (Cl. 
  & 
  Moll. 
  Diat. 
  X:o 
  136), 
  Trave- 
  f 
  

   miinde. 
  

  

  