Order Eutreptiales

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Family Astasiaceae Ehrenberg

Genus Astasia A.Meyer

  • Astasia kathemerios Skuja – brackish-water supralittoral basin; cape Kindo; sporadic (own data).
  • Astasia klebsii Lemmermann – planktonic; freshwater supralittoral basin; sporadic (own data).
  • Astasia longa E. G. Pringsheim – planktonic; freshwater ponds; common (own data).
  • Astasia parvula Skuja – planktonic; freshwater; rare (own data).

Genus Petalomonas F. Stein

  • Petalomonas alata Stokes – benthic; freshwater supralittoral pool; Kislaya inlet; sporadic; planktonic; Nizhneye Ershovskoe lake; sporadic (own data).
  • Petalomonas mediocanellata Stein – benthic; freshwater; rare (own data).
  • Petalomonas mira Awerinzew – in clusters of filamentous algae; freshwater; rare (own data).

Petalomonas mira var. appendiculata Skuja – benthic; freshwater supralittoral pool; area of the WSBS settlement; sporadic (own data).

  • Petalomonas pusilla Skuja, 1948 – benthic; freshwater supralittoral pool; sporadic. Also found in aerobic and microaerophilic zones in semi-isolated coastal stratified lake Kislo-Sladkoe (Mindolina et al., 2023).

Genus Rhabdomonas Fresenius

  • Rhabdomonas incurva Fresenius – planktonic; pools, bogs; rare (own data).

Family Eutreptiaceae Hollande

Genus Eutreptia Perty

  • Eutreptia viridis Perty – planktonic; littoral pools, supralittoral basins, bogs, Kislosladkoye (Sour-Sweet) Lake, Verkhneye (Upper) Lake; rare (own data).

Genus Eutreptiella Da Cunha

  • Eutreptiella eupharyngea Walne, Moestrup, Norris et Ettl – planktonic; supralittoral basin; Biofiltry Bay; sporadic (own data).

rus: Порядок Eutreptiales