Order Naviculales

Family Amphipleuraceae Grunow

Genus Amphipleura Kützing

• Amphipleura micans (Lyngbye) Cleve – marine, littoral; benthic, periphyton; rare (Бондарчук, 1970).
• Amphipleura pellucida Kützing – freshwater; periphyton (Dressler, 2003).

Genus Amphiprora C. G. Ehrenberg

• Amphiprora alata Kützing – marine, littoral; benthic, periphyton; sporadic, everywhere (Бондарчук, 1970).

Genus Frustulia Rabenhorst

• Frustulia rhomboides (Ehrenberg) De Toni var. rhomboides – marine. littoral, diluted areas; benthic, periphyton; rare (Бондарчук, 1970; in addition: F. rhomboides var. saxonica (Rabenhorst) De Toni – littoral, sporadic finding in the Rugozerskaya Bay). Freshwater; periphyton (Dressler, 2003).

Family Berkeleyaceae D.G. Mann

Genus Berkeleya Greville

• Berkeleya rutilans (Trentepohl) Cleve – marine, littoral; benthic, periphyton; everywhere, in some areas dominant (Бондарчук, 1970: as Amphipleura rutilans (Roth) Cleve; in addition, A. rutilans var. antarctica (Harvey) Cleve – rare, together with type variation). Marine, littoral, sublittoral, down to 5 m; benthic (Бондарчук, 1980: as A. rutilans).
• Berkeleya scopulorum (Brébisson ex Kützing) E. J. Cox – marine, littoral; everywhere, sometimes dominant (Бондарчук, 1970: as Navicula scopulorum Brébisson).

Family Brachysiraceae D.G. Mann

Genus Brachysira Kützing

• Brachysira bacillifer (Maillard) Lange-Bertalot & Moser – freshwater; periphyton (Dressler, 2003).
• Brachysira brebissonii R. Ross subsp. brebissonii – freshwater; periphyton (Dressler, 2003).
• Brachysira styriaca (Grunow) R. Ross – freshwater; periphyton (Dressler, 2003).
• Brachysira vitrea (Grunow) R. Ross – freshwater; periphyton (Dressler, 2003).
• Brachysira zellensis (Grunov) Cleve – freshwater; periphyton (Dressler, 2003).

Family Cavinulaceae D.G. Mann

Genus Cavinula Mann & Stickle

• Cavinula cocconeiformis (Gregory ex Greville) D. G. Mann & A. J. Stickle – marine, littoral; benthic, periphyton; sporadic (Бондарчук, 1970: as Navicula cocconeiformis Gregory ex Greville).
• Cavinula jaernefeltii (Hustedt) D.G. Mann — marine, littoral (Сапожников, 1998: as Navicula jaernefeltii (Hustedt).
• Cavinula lacustris (W. Gregory) D. G. Mann – marine, littoral, diluted areas; periphyton; rare (Бондарчук, 1970: as Navicula lacustris W. Gregory).
• Cavinula pseudoscutiformis (Hustedt) D. G. Mann & A. J. Stickle – freshwater; periphyton (Dressler, 2003: as Navicula pseudoscutiformis Hustedt).

Family Cosmioneidaceae D. G. Mann

Genus Cosmioneis D. G. Mann & Stickle

• Cosmioneis pusilla (W. Smith) D. G. Mann & A. J. Stickle – marine, littoral; benthic, periphyton; sporadic (Бондарчук, 1970: as Navicula pusilla W. Smith).

Family Diadesmidaceae D. G. Mann

Genus Diadesmis Kützing

• Diadesmis perpusilla (Grunow) D. G. Mann – marine, littoral, diluted areas; benthic, periphyton; very rare (Бондарчук, 1970: as Navicula perpusilla Grunow).

Genus Luticola D. G. Mann in F. E. Round et al.

• Luticola goeppertiana (Bleisch) D. G. Mann – marine, littoral; rare, everywhere (Бондарчук, 1970: as Navicula mutica f. goeppertiana Bleisch).
• Luticola mutica (Kützing) D. G. Mann – marine, littoral; rare, everywhere (Бондарчук, 1970: as Navicula mutica Kützing).

Family Diploneidaceae D. G. Mann

Genus Diploneis Ehrenberg ex Cleve

• Diploneis chersonensis (Grunov) Cleve – marine, littoral, sublittoral; benthic, periphyton; rare (Бондарчук, 1970; Сапожников, 1998).
• Diploneis constricta (Grunow) Cleve – marine, littoral; benthic (Сабурова, 1995).
• Diploneis didyma (Ehrenberg) Cleve – marine, littoral; benthic, periphyton; not rare (Бондарчук, 1970).
• Diploneis domblittensis (Grunov) Cleve — marine, littoral (Сапожников, 1998).
• Diploneis fusca (W. Gregory) Cleve – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970).
• Diploneis gemmatula (A. Grunow) P.T. Cleve — marine, littoral (Сапожников, 1998).
• Diploneis incurvata (Gregory) Cleve – marine, littoral, sublittoral; benthic, periphyton; not rare (Бондарчук, 1970).
• Diploneis interrupta (Kützing) Cleve – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970). Marine; planktonic (Конопля, 1974). Marine, sublittoral, 5-10 m; silty-sandy soil; benthic; dominant (Бондарчук, 1980а).
• Diploneis litoralis (Donkin) Cleve var. arctica P. T. Cleve – marine, littoral; periphyton; sporadic finding in the Rugozerskaya Bay. (Бондарчук, 1970).

Diploneis litoralis var. clathrata (Østrup) Cleve — marine, planktonic (Rat'kova, 2000).

• Diploneis marginestriata Hustedt — marine, littoral (Сапожников, 1998).
• Diploneis ovalis (Hilse) Cleve – marine, littoral, diluted areas; benthic, periphyton; rare (Бондарчук, 1970). Freshwater; periphyton (Dressler, 2003).
• Diploneis parma Cleve — marine, littoral (Сапожников, 1998).
• Diploneis smithii (Brébisson) Cleve – marine, littoral; benthic, periphyton; not rare, everywhere (Бондарчук, 1970). Marine, littoral; benthic (Сабурова, 1995).
• Diploneis splendida (Gregory) Cleve – marine, littoral; benthic, periphyton; not rare, everywhere (Бондарчук, 1970). Marine, sublittoral, 5-10 m; silty-sandy soil; benthic; dominant (Бондарчук, 1980а).
• Diploneis subcincta (A. Schmidt) Cleve – marine, littoral; benthic, periphyton; not abundant (Бондарчук, 1970).
• Diploneis vacillans (A. Schmidt) Cleve — marine, littoral (Сапожников, 1998).
• Diploneis weissflogii (A. Schmidt) Cleve — marine, littoral (Сапожников, 1998).

Family Naviculaceae Kützing

Genus Caloneis P. Cleve

• Caloneis amphisbaena (Bory) Cleve – marine, littoral, diluted areas; rare (Бондарчук, 1970).

C. amphisbaena f. amphisbaena – freshwater; periphyton (Dressler, 2003).

• Caloneis bacillum (Grunov) Mereschkowsky – marine, littoral; benthic, periphyton; not rare, everywhere (Бондарчук, 1970).
• Caloneis brevis (Gregory) Cleve var. brevis – marine, littoral; benthic, periphyton; everywhere, not rare, in some areas abundant (Бондарчук, 1970: as C. brevis Greg.; in addition: C. brevis var. vexans Grun. – rare, together with type variation).
• Caloneis liber (W. Smith) Cleve var. liber – marine, littoral; benthic, periphyton; sporadic, everywhere (Бондарчук, 1970: C. liber W. Sm.; in addition: C. liber var. umbilicata (Grunow) Cleve – littoral, sporadic in the Rugozerskaya Bay.)
• Caloneis linearis (Grunow) Boyer – marine, littoral; benthic, periphyton; sporadic (Бондарчук, 1970: C. liber var. linearis (Grunow) Cleve).
• Caloneis silicula (Ehrenberg) Cleve var. silicula – marine, littoral; benthic, periphyton; everywhere, rare (Бондарчук, 1970; as C. silicula var. ventricosa (Ehrenberg) Cleve; in addition: C. silicula var. ventricosa (Ehrenberg) Cleve – together with type variation, less often). Freshwater; periphyton (Dressler, 2003).
• Caloneis subsalina (Donkin) Hendey – marine, littoral, diluted areas; benthic, periphyton; rare (Бондарчук, 1970: as C. amphisbaena var. subsalina (Donkin) Cleve). Marine, littoral; silty-sandy soil; benthic (Сабурова, 1995).
• Caloneis tenuis (W. Gregory) Krammer – freshwater; periphyton (Dressler, 2003).
• Caloneis westii (W. Smith) Hendey – marine, littoral; benthic, periphyton; everywhere, rare (Бондарчук, 1970: C. formosa (Gregory) Cleve).

Genus Haslea Simonsen

• Haslea crucigera (W. Smith) Simonsen – marine, littoral; benthic, periphyton; rare (Бондарчук, 1970: as Navicula crucigera (W. Smith) Cleve).
• Haslea frauenfeldii (Grunow) Simonsen – marine, littoral; benthic, periphyton; rare (Бондарчук, 1970: as Navicula frauenfeldii Husted).

Genus Navicula Bory de Saint-Vincent

• Navicula abrupta (W. Gregory) Donkin – marine, littoral, sublittoral; benthic, periphyton; everywhere, not abundant (Бондарчук, 1970). Marine, littoral; silty-sandy soil; benthic; dominant (Сабурова, 1995).
• Navicula algida Grunow – marine, littoral; sporadic (Бондарчук, 1970).
• Navicula ammophila Grunow var. ammophila – marine, littoral, sublittoral; benthic, periphyton; not rare, in some areas abundant (Бондарчук, 1970; as N. ammophila var. intermedia Grunow – not rare, in some areas abundant; Сапожников, 1998).
• Navicula antonii Lange-Bertalot, 2000. Freswater. Found in semi-isolated coastal stratified lake Kislo-Sladkoe (Mindolina et al., 2023).
• Navicula bottnica Grunow – marine, littoral; rare (Бондарчук, 1970).
• Navicula cancellata Donkin var. cancellata – marine, littoral; sporadic (Бондарчук, 1970; N. cancellata var. gregorii Grunow – sporadic; N. cancellata var. retusa (de Brébisson) Cleve – sporadic).
• Navicula capitata Ehrenberg – marine, littoral, diluted areas; benthic, periphyton; very rare (Бондарчук, 1970: as N. hungarica Grunow, N. hungarica var. capitata (Ehrenberg) Cleve и N. hungarica var. luneburgensis Grunow).
• Navicula capitatoradiata Germain – freshwater; periphyton (Dressler, 2003).
• Navicula cincta (Ehrenberg) Kützing – marine, littoral, Rugozerskaya Bay; rare (Бондарчук, 1970).
• Navicula clementis Grunow var. clementis – marine, littoral, sublittoral; benthic, periphyton; rare (Бондарчук, 1970; as N. clementis var. acuta Brock – sporadic, together with type variation).
• Navicula complanata (Grunow) Grunow – marine, littoral, sublittoral; periphyton; not rare (Бондарчук, 1970: N. complanata Hust.).
• Navicula crucicula (W. Smith) Donkin – marine, littoral; sporadic (Бондарчук, 1970).
• Navicula crucigeroides Hustedt – marine, littoral; rare (Бондарчук, 1970).
• Navicula cryptocephala Kützing – marine, littoral; benthic, periphyton; everywhere, not abundant (Бондарчук, 1970). Marine, littoral; silty-sandy soil; dominant (Сабурова, 1995). Freshwater; periphyton (Dressler, 2003).
• Navicula cryptocephala var. intermedia Grunow — marine, common, littoral (Сапожников, 1998).
• Navicula cryptotenella Lange-Bertalot – freshwater; periphyton (Dressler, 2003).
• Navicula crystallina Hustedt – marine, littoral; rare (Бондарчук, 1970).
• Navicula dahurica Skvortzov — marine, littoral (Сапожников, 1998).
• Navicula debilissima Grunow – marine, littoral; silty-sandy soil; benthic (Сабурова, 1995).
• Navicula digitoradiata (Gregory) Schmidt var. digitoradiata – marine, littoral, diluted areas; in some areas abundant (Бондарчук, 1970; N. digitoradiata var. seychellensis Cleve – together with type variation, sporadic; N. digitoradiata var. cyprinus (Ehrenberg) W. Smith – together with type variation, sometimes dominant). Marine, littoral, corner of the Rugozerskaya Bay; silty soil; dominant (Бондарчук, 1980а). marine, littoral; silty-sandy soil; benthic; dominant (Сабурова, 1995).
• Navicula directa (W. Smith) Ralfs var. directa – marine, littoral; benthic, periphyton; everywhere, in some areas abundant (Бондарчук, 1970; as N. directa var. incus (Grunow in A. Schmidt) Cleve – littoral, Rugozerskaya Bay, sporadic findings; N. directa var. remota (Grunow) Cleve – benthic, periphyton; sporadic). Marine; littoral species in plankton; spring (Конопля, 1971). Marine; planktonic; common in spring (Конопля, 1974).
• Navicula dissipata Hustedt – marine, littoral; sporadic (Бондарчук, 1970).
• Navicula distans (W. Smith) Ralfs – marine, littoral; sporadic (Бондарчук, 1970: as N. distans W. Sm.).
• Navicula elegans W. Smith – marine, littoral; sporadic (Бондарчук, 1970).
• Navicula elginensis (Gregory) Ralfs var. elginensis – freshwater; periphyton (Dressler, 2003).
• Navicula finmarchica (Cleve & Grunow) Cleve – marine, littoral, sublittoral; benthic, periphyton; rare (Бондарчук, 1970: as N. finmarchica Cl. & Grun.).
• Navicula fraudulenta A. Schmidt – marine littoral, Rugozerskaya Bay; sporadic finding (Бондарчук, 1970).
• Navicula frigida Grunow — planktonic, dominant in spring, Velikaya Salma (Конопля, 1971).
• Navicula gastrum (Ehrenberg) Kützing var. gastrum – marine, littoral, diluted areas; rare (Бондарчук, 1970; N. gastrum var. latiuscula Grunow – Rugozerskaya Bay, sporadic findings). Freshwater; перифит (Dressler, 2003).
• Navicula gelida Grunow var. gelida – marine, littoral, sublittoral; benthic, periphyton; rare (Бондарчук, 1970; N. gelida var. subimpressa (Grunow) Cleve – periphyton; sporadic finding in the Rugozerskaya Bay; N. gelida var. tenuis Cleve – sporadic on littoral in the Rugozerskaya Bay.). Marine; littoral species in plankton; common in spring (Конопля, 1971, 1974).
• Navicula glacialis (Cleve) Cleve var. glacialis – marine, littoral; benthic, periphyton; sporadic, everywhere (Бондарчук, 1970; N. glacialis var. septentrionalis Cleve – very rare, together with type variation). Marine; in plankton (Конопля, 1974).
• Navicula gothlandica Grunow – marine, littoral, Rugozerskaya Bay; sporadic finding (Бондарчук, 1970).
• Navicula granii (Jørgensen) Gran – marine, planktonic (Конопля, 1974).
• Navicula gregaria Donkin – marine, littoral; rare, everywhere (Бондарчук, 1970).
• Navicula grevilleana Hendey – marine, littoral; benthic, periphyton; often (Бондарчук, 1970: N. grevillei Ag.; in addition: N. grevillei var. minir (Ag.) A. Cl. – not rare, in diluted areas).
• Navicula halophila (Grunow ex Van Heurck) Cleve – marine, littoral; silty-sandy soil; benthic (Сабурова, 1995).
• Navicula hamulifera Grunow – marine, littoral; sporadic (Бондарчук, 1970).
• Navicula incerta Grunow — marine, common, littoral (Сапожников, 1998).
• Navicula kepesii Grunow — marine, common, littoral (Сапожников, 1998).
• Navicula kariana Cleve var. frigida (Grunow) Cleve – marine, littoral, sublittoral; benthic, periphyton; not rare (Бондарчук, 1970).
• Navicula krasskei Hustedt – marine, littoral; silty-sandy soil; benthic (Сабурова, 1995).
• Navicula lanceolata (C. Agardh) Kützing var. lanceolata – marine, littoral; sporadic, everywhere (Бондарчук, 1970; in addition: N. lanceolata var. cymbula (Donkin) Cleve – sporadic finding on the littoral in the Rugozerskaya Bay; N. lanceolata var. tenella Cleve – very rare on the littoral of the Rugozerskaya Bay).

N. lanceolata var. phyllepta (Kützing) Cleve – freshwater; periphyton (Dressler, 2003: as N. phyllepta Kützing).

• Navicula latens Krasske — marine, littoral (Сапожников, 1998).
• Navicula lateropunctata J. H. Wallace — marine, common, littoral (Сапожников, 1998).
• Navicula laterostrata Hustedt — marine, littoral (Сапожников, 1998).
• Navicula lineola Grunow – marine, littoral; sporadic (Бондарчук, 1970).
• Navicula menisculus Schumann – marine, littoral; rare, everywhere (Бондарчук, 1970).
• Navicula menisculus var. usaliensis Grunow — periphyton, bogs, lakes (Dressler, Hübener, 2002).
• Navicula minuscula Grunow — marine, littoral (Сапожников, 1998).
• Navicula monilifera var. heterosticha Cleve — marine, littoral (Сапожников, 1998).
• Navicula oblonga (Kützing) Kützing — planktonic, rare, diluted Velikaya Salma (Бондарчук, 1963).
• Navicula palpebralis de Brébisson – marine, littoral, sublittoral; rare (Бондарчук, 1970; N. palpebralis var. angulosa (Gregory) Van Heurck – together with type variation; N. palpebralis var. minor (Gregory) Grunow – together with type variation, less often; N. palpebralis var. semiplena (Gregory) Cleve – very rare on the littoral).
• Navicula paradoxa Skvortzov — marine, common, littoral (Сапожников, 1998).
• Navicula paucivisitata R. M. Patrick — marine, littoral (Сапожников, 1998).
• Navicula pelagica Cleve – marine; planktonic; dominant in spring (Конопля, 1971). Marine; planktonic; common in spring (Конопля, 1974).
• Navicula pelliculosa (Brébisson ex Kützing) Hilse — marine, littoral (Сапожников, 1998).
• Navicula peregrina (Ehrenberg) Kützing – marine, littoral; rare, everywhere (Бондарчук, 1970; N. peregrina var. intermedia D. McCall – rare, in diluted littoral areas; N. peregrina var. lanceolata Skvortzov – very rare, in diluted littoral areas; N. peregrina var. peregrinoides D. McCall – littoral Rugozerskaya Bay, sporadic finding).
• Navicula placentula (Ehrenberg) Grunow – marine, littoral, mouths of brooks; rare (Бондарчук, 1970: as N. placentula Ehr.).
• Navicula plicata Donkin – marine, littoral; benthic, periphyton; in some areas abundant (Бондарчук, 1970).
• Navicula protracta Grunow – marine, littoral, diluted areas; benthic, periphyton; rare (Бондарчук, 1970; N. protracta f. conspicua Korotkevich – together with type variation, rare).
• Navicula radiosa Kützing – marine, littoral, diluted areas; sporadic (Бондарчук, 1970; as N. radiosa var. acuta (W. Smith) Grunov – sporadic in the Rugozerskaya Bay; N. radiosa var. tenella (Brébisson) Van Heurck – sporadic in the Rugozerskaya Bay). Freshwater; periphyton (Dressler, 2003).
• Navicula ramosissima (C. Agardh) Cleve – marine, littoral, sublittoral; benthic, periphyton; sometimes abundant (Бондарчук, 1970: N. ramosissima Ag.; N. ramosissima var. amplia Grunow – very rare, together with type variation).
• Navicula reichardtii Grunow – marine, littoral, sublittoral; benthic, periphyton; in some areas abundant (Бондарчук, 1970; as N. reichardtii var. tschutchschorum (Cleve) Cleve – together with type variation, not rare).
• Navicula rhynchocephala Kützing – marine, littoral; sporadic, everywhere (Бондарчук, 1970; as N. rhynchocephala var. amphiceros (Kützing) Grunow – everywhere, not abundant). Freshwater; periphyton (Dressler, 2003).
• Navicula rostellata Kützing – marine, littoral; sporadic, everywhere (Бондарчук, 1970; N. rostellata var. major Kützing – sporadic finding in the Rugozerskaya Bay; N. rostellata var. minor Van Heurck – sporadic, together with type variation). Freshwater; periphyton (Dressler, 2003).
• Navicula salinarum Grunow – marine, littoral; benthic, periphyton; in some areas dominant (Бондарчук, 1970). Littoral, corner of the Rugozerskaya Bay, diluted areas; silty soil; dominant (Бондарчук, 1980а). Marine, littoral; silty-sandy soil; benthic; dominant (Сабурова, 1995).
• Navicula scutelloides W. Smith – marine, littoral, Rugozerskaya Bay; sporadic finding (Бондарчук, 1970).
• Navicula secura R. M. Patrick — marine, common, littoral (Сапожников, 1998).
• Navicula septentrionalis (Grunow) Gran – marine; planktonic; dominant, dominant in spring (Конопля, 1971, 1974).
• Navicula simplex Krasske — marine, dominant, littoral (Сапожников, 1998).
• Navicula simula Patrick — marine, littoral (Сапожников, 1998).
• Navicula spicula (Dickie) Cleve – marine, littoral; sporadic, everywhere (Бондарчук, 1970). Marine; in plankton (Конопля, 1971, 1974).
• Navicula subrhombica Hustedt — marine, common, littoral (Сапожников, 1998).
• Navicula subtilissima Cleve – freshwater; periphyton (Dressler, 2003).
• Navicula transitans Cleve – marine, littoral, Rugozerskaya Bay; benthic, periphyton; sporadic (Бондарчук, 1970; N. transitans var. asymmetrica (Cleve) Cleve – sporadic finding in fouling; N. transitans var. derasa (Grunow) Cleve – sporadic; N. transitans var. derasa f. minuta (Cleve) Cleve – sporadic finding).
• Navicula tripunctata (O.F. Müller) Bory – marine, littoral; sporadic (Бондарчук, 1970: as N. gracilis Ehrenberg). Marine, littoral; silty-sandy soil; benthic (Сабурова, 1995: as N. gracilis). Freshwater; periphyton (Dressler, 2003).
• Navicula unipunctata Skvortzov — marine, littoral (Сапожников, 1998).
• Navicula upsaliensis Grunow – freshwater; periphyton (Dressler, 2003).
• Navicula vanhoeffenii Gran – marine; planktonic; dominant in spring (Конопля, 1971, 1974).
• Navicula veneta Kützing – marine, littoral; sporadic, together with N. cryptocephala (Бондарчук, 1970: N. cryptocephala var. veneta (Kützing) Rabenhorst).
• Navicula verecunda Hustedt — marine, littoral (Сапожников, 1998).
• Navicula viridula (Kützing) Kützing – marine, littoral, mouths of brooks; benthic, periphyton; rare (Бондарчук, 1970; as N. viridula var. avenacea (Brébisson) Grunow – rare, together with type variation). Freshwater; periphyton (Dressler, 2003).
• Navicula vulpina Kützing – marine, littoral, diluted areas; rare (Бондарчук, 1970).
• Navicula wildii Lange-Bertalot – freshwater; periphyton (Dressler, 2003).

Genus Pseudogomphonema L. K. Medlin in L. K. Medlin & F. E. Round

• Pseudogomphonema kamtschaticum (Grunow) L. K. Medlin – marine, littoral; benthic, periphyton; not rare, everywhere (Бондарчук, 1970: as Gomphonema kamtschaticum Grunow).

Genus Trachyneis Cleve

• Trachyneis aspera (Ehrenberg) Cleve – marine, littoral, sublittoral; benthic, periphyton; everywhere, rare (Бондарчук, 1970; as T. aspera var. intermedia (Grunov) Cleve – rare, everywhere; T. aspera var. pulchella (W. Smith) Cleve – sporadic, together with type variation; T. aspera var. vulgaris Cleve – rare, everywhere). Marine, sublittoral, 5-10 м; silty-sandy soil; dominant (Бондарчук, 1980а). Marine, littoral; silty-sandy soil; benthic; dominant (Сабурова, 1995).

Family Neidiaceae Mereschkowsky

Genus Neidium Pfitzer

• Neidium affine (Ehrenberg) Pfizer – marine, littoral; diluted areas; rare (Бондарчук, 1970: as N. affine (Ehrenberg) Cleve).
• Neidium ampliatum (Ehrenberg) Krammer – freshwater; periphyton (Dressler, 2003).
• Neidium dubium (Ehrenberg) Cleve – marine, littoral, Rugozerskaya Bay; sporadic (Бондарчук, 1970: as N. dubium Ehenberg).
• Neidium globiceps (A. Cleve) A. Cleve – marine, littoral, Rugozerskaya Bay; sporadic finding in the mouth of a brook (Бондарчук, 1970: as N. globiceps A. Cleve).

Family Pinnulariaceae D. G. Mann

Genus Pinnularia Ehrenberg *Pinnularia abaujensis (Pantocsek) R. Ross var. linearis (Hustedt) R.M. Patrick – freshwater; periphyton (Dressler, 2003: as P. gibba var. linearis Hustedt). *Pinnularia ambigua Cleve – marine, littoral; sporadic, everywhere (Бондарчук, 1970).

• Pinnularia biceps W. Gregory – freshwater; periphyton (Dressler, 2003).
• Pinnularia borealis Ehrenberg – marine, littoral; sporadic (Бондарчук, 1970).
• Pinnularia cruciformis (Donkin) Cleve – marine, littoral, Rugozerskaya Bay; sporadic (Бондарчук, 1970). Marine; in plankton (Конопля, 1974).
• Pinnularia fasciata Lagerstedt - marine, littoral (Сапожников, 1998).
• Pinnularia gibba (Ehrenberg) Ehrenberg var. gibba – freshwater, Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; planktonic (Бизина, 1998).

*Pinnularia gibbiformis K. Krammer – freshwater; periphyton (Dressler, 2003). *Pinnularia globiceps W. Gregory – marine, littoral, significantly diluted areas; sporadic (Бондарчук, 1970). *Pinnularia hemiptera (Kützing) Cleve – marine, littoral; Rugozerskaya Bay; sporadic finding (Бондарчук, 1970).

• Pinnularia interrupta W. Smith – marine, littoral; sporadic (Бондарчук, 1970). Freshwater, Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; planktonic (Бизина, 1998). Freshwater; periphyton (Dressler, 2003).
• Pinnularia major (Kützing) Cleve — planktonic, rare, diluted Velikaya Salma (Бондарчук, 1963); planktonic, benthic, common, brackish-water, freshwater, Kindo peninsula.
• Pinnularia mesolepta (Ehrenberg) W. Smith – marine, littoral; sporadic (Бондарчук, 1970).
• Pinnularia neomajor Krammer – freshwater; periphyton (Dressler, 2003).
• Pinnularia pseudogibba K. Krammer var. pseudogibba – freshwater; periphyton (Dressler, 2003).
• Pinnularia quadratarea (A. Schmidt) Cleve – marine, littoral; not rare, everywhere (Бондарчук, 1970; P. quadratarea var. baltica (A. Grunow) P. T. Cleve – together with type variation; P. quadratarea var. minor (E. V. Østrup) H. Heiden (P. quadratarea var. minor Grun.) – rare, together with type variation; P. quadratarea var. Soderlundii Cleve – rare, together with type variation). Marine, in plankton (Конопля, 1974). Littoral, corner of the Rugozerskaya Bay; silty soil; dominant (Бондарчук, 1980а).
• Pinnularia stauroptera (Grunov) Rabenhorst – marine, littoral, significantly diluted areas; sporadic (Бондарчук, 1970: P. stauroptera Grun.).
• Pinnularia stomatophora Grunow – marine, littoral, Rugozerskaya Bay; sporadic finding in the mouth of a brook (Бондарчук, 1970). Freshwater; periphyton (Dressler, 2003: P. cf. stomatophora).
• Pinnularia subcapitata W. Gregory – freshwater; periphyton (Dressler, 2003).
• Pinnularia subgibba Krammer – freshwater; periphyton (Dressler, 2003).
• Pinnularia viridis (Nitzsch) Ehrenberg – marine, littoral; sporadic, everywhere (Бондарчук, 1970; P. viridis var. commutata (Grunow) Cleve – sporadic finding in the Rugozerskaya Bay; P. viridis var. leptogongyla (Ehrenberg) Grunow – sporadic finding in the Rugozerskaya Bay; P. viridis var. sudetica (Hilse) Husted – sporadic, everywhere). freshwater, Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; planktonic (Бизина, 1998). Freshwater; periphyton (Dressler, 2003).

Family Plagiotropidaceae D.G. Mann

Genus Tropidoneis Cleve

• Tropidoneis lepidoptera (Gregory) Cleve var. lepidoptera – marine, littoral; sporadic, everywhere (Бондарчук, 1970: T. lepidoptera (Gregory) Cleve). Marine, littoral; silty-sandy soil; benthic; dominant (Сабурова, 1995). Marine, littoral, estuary of the Chernaya River; benthic; common (Azovsky et al., 2004).
• Tropidoneis vitrea (W. Smith) Cleve – marine, littoral; sporadic, everywhere (Бондарчук, 1970: T. vitrea W. Sm.).

Family Pleurosigmataceae Mereschkowsky

Genus Gyrosigma Hassall

• Gyrosigma acuminatum (Kützing) Rabenhorst – marine, littoral, sublittoral; benthic, periphyton; everywhere, not abundant (Бондарчук, 1970; as G. acuminatum var. gallica Grunow – together with type variation, less often). Freshwater; periphyton (Dressler, 2003).
• Gyrosigma arcticum (Cleve) Cleve – marine, littoral, sublittoral; benthic, periphyton; everywhere, not abundant (Бондарчук, 1970). Marine; in plankton (Конопля, 1974).
• Gyrosigma attenuatum (Kützing) Rabenhorst – marine, littoral, diluted areas; benthic, periphyton; rare (Бондарчук, 1970).
• Gyrosigma balticum (Ehrenberg) Rabenhorst – marine, littoral, diluted areas; in some areas abundant (Бондарчук, 1970).
• Gyrosigma compactum (Greville) Cleve – marine, littoral; benthic, periphyton; rare (Бондарчук, 1970).
• Gyrosigma distortum (W. Smith) Cleve – marine, littoral, Rugozerskaya Bay; sporadic (Бондарчук, 1970:as G. distortum W. Sm.).
• Gyrosigma fasciola (Ehrenberg) J. W. Griffith & Henfrey – marine, littoral; benthic, periphyton; sporadic, everywhere (Бондарчук, 1970; G. fasciola var. prolongatum (W. Smith) Cleve (G. fasciola var. prolongatum W. Sm.) – together with type variation). Marine, littoral; silty-sandy soil; benthic; (Сабурова, 1995).
• Gyrosigma kuetzingii (Grunow) Cleve – marine, littoral, Rugozerskaya Bay; sporadic (Бондарчук, 1970).
• Gyrosigma littorale (W. Smith) Griffith & Henfrey – marine, littoral; benthic, periphyton; in some areas abundant (Бондарчук, 1970: G. littorale W. Sm.).
• Gyrosigma macrum (W. Smith) Cleve – marine, littoral; benthic, periphyton; sporadic, everywhere (Бондарчук, 1963, 1970).
• Gyrosigma prolongatum (W. Smith) J. W. Griffith & Henfrey var. closterioides (Grunow) Cleve – sporadic finding on the sublittoral, 10 m, near the Velichaikha island (Бондарчук, 1970).
• Gyrosigma rectum (Donkin) Cleve – marine, littoral; silty-sandy soil; benthic; dominant (Сабурова, 1995). Marine, littoral, estuary of the Chernaya River; benthic; common (Azovsky et al., 2004: Donkinia recta (Donkin) Grunow).
• Gyrosigma scalproides (Rabenhorst) Cleve – marine, littoral, diluted areas; sporadic (Бондарчук, 1970).
• Gyrosigma spenceri (W. Smith) Griffith & Henfrey – marine, littoral; benthic, periphyton; often in diluted areas (Бондарчук, 1970: G. spenceri (W. Sm.) Cl.).
• Gyrosigma strigile (W. Smith) Cleve — marine, littoral (Сапожников, 1998); epiphyte on macrophytic algae, common, littoral, sublittoral, Velikaya Salma
• Gyrosigma tenuissimum (W. Smith) Griffith & Henfrey – marine, littoral; sporadic (Бондарчук, 1970; G. tenuissimum var. hyperborea Grun. – sporadic). Marine; in plankton (Конопля, 1974).
• Gyrosigma wansbeckii (Donkin) Cleve – marine, littoral; benthic, periphyton; in some areas abundant (Бондарчук, 1970).

Genus Pleurosigma W. Smith

• Pleurosigma aestuarii (Brébisson ex Kützing) W. Smith – marine, littoral, diluted areas; in some areas abundant (Бондарчук, 1970). Marine, littoral; silty-sandy soil; benthic; dominant (Сабурова, 1995).
• Pleurosigma angulatum (Queckett) W. Smith – marine, littoral; not rare, everywhere (Бондарчук, 1970). Marine; in plankton (Конопля, 1974). Freshwater; periphyton (Dressler, 2003).
• Pleurosigma elongatum W. Smith – marine, littoral, sublittoral; benthic, periphyton; everywhere, in some areas dominant (Бондарчук, 1970; as P. elongatum var. fallax Grun. – rare, together with type variation; P. elongatum var. kariana Grun. – rare, together with type variation). Marine; in plankton (Конопля, 1974). Marine, littoral, corner of the Rugozerskaya Bay; silty soil; dominant (Бондарчук, 1980а).
• Pleurosigma finnmarchicum Grunow – marine, littoral; not rare, together with P. angulatum (Бондарчук, 1970: P. angulatum var. finmarchicum (Grunow) Cleve).
• Pleurosigma intermedium W. Smith – marine, littoral, Rugozerskaya Bay; sporadic (Бондарчук, 1970; as P. intermedium, P. nubecula W. Smith, P. nubecula var. intermedium (W. Smith) Cleve).
• Pleurosigma longum Cleve – marine, littoral; benthic, periphyton; sporadic, everywhere (Бондарчук, 1970).
• Pleurosigma normanii Ralfs – marine, littoral, sublittoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970).
• Pleurosigma salinarum (Grunow) Grunow – marine, littoral, Rugozerskaya Bay; rare (Бондарчук, 1970).
• Pleurosigma strigosum W. Smith – marine, littoral; rare, together with P. angulatum (Бондарчук, 1970: P. angulatum var. strigosum (W. Smith) Van Heurck).
• Pleurosigma stuxbergii Cleve & Grunow — planktonic, rare, summer, Velikaya Salma (Бондарчук, 1963).
• Pleurosigma subrigidum Grunow – marine, littoral, Rugozerskaya Bay; sporadic (Бондарчук, 1970).

Family Scoliotropidaceae Mereschkowsky

Genus Scoliopleura Grunow

• Scoliopleura tumida (Brébisson ex Kützing) Rabenhorst – marine, littoral; rare, everywhere (Бондарчук, 1970: as S. tumida Bréb.)

Genus Scoliotropis Cleve

• Scoliotropis latestriata (Brébisson ex Kützing) Cleve – marine, littoral; rare (Бондарчук, 1970; Сапожников, 1998).

Family Sellaphoraceae Mereschkowsky

Genus Fallacia Stickle & Mann

• Fallacia forcipata (Greville) Stickle & Mann (=Navicula forcipata Greville) – marine, littoral; benthic, periphyton; everywhere, sometimes abundant (Бондарчук, 1970; N. forcipata var. densestriata A.W.F. Schmidt – everywhere, sometimes abundant; N. forcipata var. versicolor Grunow – sporadic finding in the Rugozerskaya Bay). Marine; in plankton (Конопля, 1971; Конопля, 1974). Marine, littoral, corner of the Rugozerskaya Bay, diluted areas; silty soil (Бондарчук, 1980а).
• Fallacia hyalinula (De Toni) Stickle & Mann – marine, littoral, sublittoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970: Navicula cf. plathi Brockmann).
• Fallacia litoricola (Hustedt) D. G. Mann – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970: Navicula litoricola Hustedt).
• Fallacia pygmaea (Kützing) A. J. Stickle & D. G. Mann – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970: Navicula pygmaea Kützing).
• Fallacia subforcipata (Hustedt) Mann – marine, littoral, Rugozerskaya Bay; sporadic (Бондарчук, 1970: Navicula subforcipata Hustedt).

Genus Sellaphora Mereschkovsky

• Sellaphora bacillum (Ehrenberg) D. G. Mann – marine, littoral; benthic; everywhere, sometimes abundant (Бондарчук, 1970: Navicula bacillum Ehrenberg).
• Sellaphora pupula (Kützing) Mereschkovsky – marine, littoral, diluted areas; benthic; rare (Бондарчук, 1970: Navicula pupula Kützing; N. pupula var. capitata Hustedt – sporadic, together with type variation; N. pupula var. elliptica Hustedt – sporadic finding in the Rugozerskaya Bay). Marine, littoral; silty-sandy soil; benthic (Сабурова, 1995: N. pupula var. rostrata (Hustedt) J.R. Johansen). Freshwater; periphyton (Dressler, 2003: N. pupula var. pupula).

Family Stauroneidaceae D.G. Mann

Genus Craticula Grunow

• Craticula ambigua (Ehrenberg) D. G. Mann – freshwater; periphyton (Dressler, Hübener, 2002; Dressler, 2003).

Genus Stauroneis Ehrenberg

• Stauroneis acuta W. Smith — planktonic, common, Vodoprovodnoye (Potable water) Lake.
• Stauroneis anceps Ehrenberg – freshwater, Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; planktonic (Бизина, 1998). Freshwater; periphyton (Dressler, 2003).
• Stauroneis phoenicenteron Ehrenberg – marine, littoral, diluted areas; benthic; rare (Бондарчук, 1970). Freshwater, Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; planktonic (Бизина, 1998). Freshwater; periphyton (Dressler, 2003).
• Stauroneis prominula (Grunov) Hustedt – marine, littoral, Rugozerskaya Bay; sporadic finding (Бондарчук, 1970: S. parvula var. prominula Grunow ex Cleve).
• Stauroneis salina W. Smith – marine, littoral; benthic; everywhere, sometimes abundant (Бондарчук, 1970).
• Stauroneis smithii Grunow var. incisa Pantoczek — marine, littoral (Сапожников, 1998).

rus: Порядок Naviculales