Order Cryptomonadales

Family Cryptomonadaceae Ehrenberg

Genus Cryptomonas C. G. Ehrenberg

• Cryptomonas compressa Pascher – in spews from sphagnum mosses, common, bogs; planktonic, dominant, rain puddles at the area of the WSBS settlement.
• Cryptomonas commutata (Pascher) Hoef-Emden (=Cryptochrysis commutata Pascher – planktonic, rare, rain puddles at the area of the WSBS settlement.
• Cryptomonas curvata Ehrenberg – planktonic, rare, freshwater supralittoral silty pools, Kindo peninsula.
• Cryptomonas erosa Ehrenberg – planktonic, common, freshwater, Kindo peninsula.
• Cryptomonas nordstedtii (Hansgirg) Senn ( = Chroomonas nordstedtii Hansgirg) – planktonic, sporadic, freshwater pool, Kindo peninsula.
• Cryptomonas ovata Ehrenberg - planktonic, dominant, freshwater, Kindo peninsula.
• Cryptomonas paramaecium (Ehrenberg) Hoef-Emden & Melkonian ( = Chilomonas paramaecium Ehrenberg) – planktonic, common, freshwater, brackish-water supralittoral basins with rotting algae, Kindo peninsula.
• Cryptomonas phaseolus Skuja – planktonic, common, Kislosladkoye (Sour-Sweet) Lake, supralittoral freshwater pools.
• Cryptomonas reticulata Ehrenberg - planktonic, rare, freshwater supralittoral basins.
• Cryptomonas similis Hollande – planktonic, sporadic, freshwater supralittoral basin with rotting storm drains, Kastyan island

In the printed version of the Catalogue (2008) was also listed Cryptomonas cf. rufescens Skuja (planktonic, massive red algal blooms, but only at но только at a depth of 5 m, the lake near the Zelyonyi Cape, 11.08.2002 — collection by С.И. Шапоренко, identified by Е.А. Кузнецов) later idenified by 18S RNA gene as Rhodomonas sp. RCC2020 (GenBank номер KF039722), see below.

Genus Isoselmis R. W. Butcher

• Isoselmis obsconica Butcher — planktonic, rare, brackish-water supralittoral basins

Genus Leucocryptos R. W. Butcher

• Leucocryptos marina (Braarud) Butcher ( =Chilomonas marina (Braarud) Halldal) – marine, planktonic (Rat’kova, 2000), rare, shallow-water, diluted Velikaya Salma; common, brackish-water supralittoral basins.

Genus Plagioselmis R. W. Butcher ex G. Novarino et al.

• Plagioselmis prolonga Butcher ex G. Novarino et al. ( =Plagioselmis punctata Butcher) — planktonic, sporadic, Velikaya Salma.

Genus Goniomonas Stein, 1878

• Goniomonas truncata (Fresenius) Stein, 1878 - freshwater, marine, brackish. Found in aerobic and microaerophilic zones of semi-isloated coastal stratified lake Kislo-Sladkoe (Mindolina et al., 2023)and in plankton of meromictic lake Trekhtzvetnoe (Mindolina, 2025)..
• Goniomonas amphinema Larsen & Patterson - marine. Found in semi-isloated coastal stratified lake Kislo-Sladkoe at a depth of 0 to 2–2.5 m (Mindolina et al., 2023).

Genus Rhodomonas G. Karsten, 1898

• Rhodomonas cf. baltica (Karsten, 1898) - marine mixotroph, blooms in redox-cline of some semi-isloated from the sea coastal stratified lakes including lake Kislo-Sladkoe, lagoon on the cape Zeleny (Mindolina et al., 2023; https://doi.org/10.3390/d15010044). Early listed as Rhodomonas sp. RCC2020 (GenBank номер KF039722) by 18S RNA gene (Krasnova et al., 2015).

In the printed version of the Catalogue (2008) was also listed Cryptomonas cf. rufescens Skuja (planktonic, massive red algal blooms, but only at a depth of 5 m, the lake near the Zelyonyi Cape, 11.08.2002 — collection by С.И. Шапоренко, identified by Е.А. Кузнецов) later idenified by 18S RNA gene as Rhodomonas sp. RCC2020 (GenBank номер KF039722).

Family Hemiselmidaceae Butcher ex P. C. Silva

Genus Hemiselmis Parke

• Hemiselmis brunnescens Parke – planktonic, sporadic, Velikaya Salma.
• Hemiselmis cryptochromatica C.E.Lane & J.M.Archibald, 2008 - marine. Found in semi-isolated coastal stratified lake Kislo-Sladkoe (Plotnikov et al., 2022).
• Hemiselmis rufescens Parke – planktonic, common, sometimes dominant, brackish-water supralittoral basins.
• Hemiselmis virescens Droop — planktonic, rare, brackish-water supralittoral basins.

Genus Protochrysis Pascher

• Protochrysis phaeophycearum Pascher – planktonic, rare, shallow-water freshwater

Family Hilleaceae Pascher

Genus Hillea Schiller

• Hillea fusiformis (Schiller) Schiller – marine, planktonic - (Rat’kova, 2000).

rus: Порядок Cryptomonadales