Order Lyrellales

Family Lyrellaceae D.G. Mann

Genus Lyrella N.I. Karajeva

• Lyrella abrupta (Gregory) D. G. Mann — marine, rare, littoral (Сапожников, 1998).
• Lyrella atlantica (Schmidt) Mann – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970: as Navicula lyra var. atlantica A. Schmidt).
• Lyrella hennedyi (W. Smith) Stickle & Mann – marine, littoral, sublittoral; benthic, periphyton; rare (Бондарчук, 1970: as Navicula hennedyi W. Smith).
• Lyrella lyra (Ehrenberg) Karajeva var. lyra – marine, littoral, sublittoral; everywhere, rare (Бондарчук, 1970: as Navicula lyra Ehrenberg; in addition, this source lists as variations of N. lyra the following species: N. lyra var. ehrenbergii Cleve – sporadic, littoral; N. lyra var. elliptica A. Smith – sporadic, littoral; N. lyra var. intermedia Per. – very rare, sublittoral; N. lyra var. subelliptica Cleve – sporadic, littoral).
• Lyrella lyroides (Hendey) D. G. Mann – marine, sublittoral; benthic, periphyton; rare (Бондарчук, 1970: as Navicula lyroides Hendey).
• Lyrella spectabilis (Gregory) D. G. Mann – marine, littoral, sublittoral; benthic, periphyton; rare (Бондарчук, 1970: Navicula spectabilis Gregory).

Genus Petroneis A. J. Stickle & D. G. Mann in R. E. Round et al.

• Petroneis granulata (Bailey) D. G. Mann – marine, littoral Rugozerskaya Bay; sporadic (Бондарчук, 1970: Navicula granulata Bailey).
• Petroneis humerosa (Brébisson ex W. Smith) A.J. Stickle & D.G. Mann var. humerosa – marine, littoral, diluted areas; rare (Бондарчук, 1970: Navicula humerosa Brébisson; N. humerosa var. constricta Cleve – rare, together with type variation). Marine, littoral; benthic; dominant (Сабурова, 1995: Navicula humerosa). Marine, littoral, estuary of the Chernaya River; benthic (Azovsky еt al., 2004).
• Petroneis latissima (Gregory) A. J. Stickle & D. G. Mann – marine, littoral; sporadic (Бондарчук, 1970: Navicula latissima Gregory).

rus: Порядок Lyrellales