Order Gigartinales

Family Areschougiaceae J. Agardh

Genus Turnerella F. Schmitz in Engler & Prantl

• Turnerella pennyi (Harvey) Schmitz [=Cruoria rosea, =Kallymenia rosacea] - on stones, sporadic, sublittoral, Kastyan island.

Family Cruoriaсеае (J. Agardh) Kylin

Genus Cruoria Fries

• Cruoria pellita (Lyngbye) Fries — on stones, rare, sublittoral, Velikaja Salma Bay.

Family Cystocloniасеае Kützing

Genus Cystoclonium Kützing

• Cystoclonium purpureum (Hudson) Batters – marine, littoral, sublittoral; on stones, thallome of Fucus, Laminaria (Блинова, 1962: Cystoclonium purpurascens Kützing). Littoral, sublittoral; Eremeevsky porog rapids, other poorly protected coastal areas; on stones, among laminaria (Возжинская, 1967). Confirmed: Михайлова, 2010.

Genus Fimbrifolium G. I. Hansen

• Fimbrifolium dichotomum (Lepechin) G. I. Hansen (=Rhodophyllis dichotoma (Lepechin) Gobi) – marine, sublittoral, 8-15 m (Блинова, 1962). Sublittoral, 10 m; sporadic (Возжинская, 1975).

Genus Rhodophyllis Kützing

• Rhodophyllis divaricata (Stackhouse) Papenfuss – on stones in rizhoids of Laminaria digitata, sporadic, sublittoral, Malyi Eremeevsky Island

Family Dumontiaceae Bory

Genus Dilsea Stackhouse

• Dilsea carnosa (Schmidle) Kuntze (=Dilsea edulis (Stackhouse) Stackhouse O. Kuntze) — on stones and laminaria stipes algae, rare, sublittoral, Velikaja Salma Bay.
• Dilsea integra (Kjellman)Rosenvinge– laminaria stipes, rare, sublittoral, Malyi Eremeevsky Island

Genus Dumontia J. V. Lamouroux

• Dumontia contorta (S. G. Gmelin) Ruprecht – marine (Блинова, 1962: Dumontia incrassata (O. F. Müller) J. V. Lamouroux).

Family Furcellariaсеае Kylin

Genus Furcellaria J. V. Lamouroux

• Furcellaria lumbricalis (Hudson) J. V. Lamouroux (=Furcellaria fastigiata (Turner) J. V. Lamouroux) – marine (Блинова, 1962). Sublittoral; Eremeevsky porog rapids, other poorly protected coastal areas (Возжинская, 1967). Littoral (Возжинская, 1975).

Family Gigartinaceae Kützing

Genus Chondrus Stackhouse

• Chondrus crispus Stackhouse — on stones, common, littoral, upper sublittoral, Velikaja Salma Bay.

Family Kallymeniaceae (J. Agardh) Kylin

Genus Callophyllis Kützing

• Callophyllis laciniata (Hudson) Kützing - on stones, sporadic, sublittoral, Biofiltry Bay; sporadic, Kastyan island.

Genus Euthora J. Agardh

• Euthora cristata (C. Agardh) J. Agerdh – marine, sublittoral, 8-15 m (Блинова, 1962). Marine, on thallome of Palmaria (Успенская, 1963). Sublittoral; Eremeevsky porog rapids, other poorly protected coastal areas; among laminaria (Возжинская, 1967). Sublittoral, 8-10-12 m; sporadic (Возжинская, 1975: Euthora fruticulosa (Ruprecht) J. Agardh). Confirmed: Михайлова, 2010.

Genus Kallymenia J. Agardh

• Kallymenia reniformis (Turner) J. G.Agardh - on stones, rare, sublittoral, Velikaja Salma Bay. In general, the natural habitat of this species is to the south of the White Sea, samples required for confirmation. (Михайлова, 2010).

Family Phyllophoraceae Nägeli

Genus Coccotylus Kützing

• Coccotylus truncatus (Pallas) M. J. Wynne & J. N. Heine – sublittoral, 20-25 m (Алим, 1962: Phyllophora brodiaei (Turner) Endlicher). Sublittoral, on stones, thallome of Laminaria (Блинова, 1962: Phyllophora interrupta (Greville) J. Agardh and Ph. brodiaei). Sublittoral, 15-25 m; Eremeevsky porog rapids, other poorly protected, open coastal areas; dominant 15-25 m; abundant (Возжинская, 1967: Ph. interrupta and Ph. brodiaei). Sublittoral, 10 m (Возжинская, 1975: Ph. brodiaei). Confirmed: Михайлова, 2010.

Genus Gymnogongrus C. F. P. Martius

• Gymnogongrus griffithsiae (Turner) Martius – epiphyte on Fucus serratus, sporadic, border of littoral and sublittoral, Malyi Eremeevsky Island

Genus Mastocarpus Kützing

• Mastocarpus stellatus (Stackhouse) Guiry (=Gigartina stellata (Stackhouse) Batters — on stones, rare, border of littoral and sublittoral, Malyi Eremeevsky Island

Family Polyidасеае Kylin

Genus Polyides C. Agardh

• Polyides rotundus (Hudson) Gaillon (=Polyides caprinus (Gunnerus) Papenfuss) – marine, littoral, sublittoral; on stones, thallome of Fucus, Laminaria (Блинова, 1962). Sublittoral; Eremeevsky porog rapids, other poorly protected coastal areas; among laminaria (Возжинская, 1967). Confirmed: Михайлова, 2010.

• Order Hildenbrandiales

Family Hildenbrandiaceae Rabenhorst

Genus Hildenbrandia Nardo

• Hildenbrandia rubra (Sommerfelt) Meneghini (=Hildenbrandtia prototypus Nardo) – marine, littoral, sublittoral; Eremeevsky porog rapids, other poorly protected coastal areas; on stones (Возжинская, 1967). Sublittoral, 8 m; sporadic (Возжинская, 1975). Confirmed: Михайлова, 2010.

rus:Порядок Gigartinales