Order Tritoniiformes Férussac 1822

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(Order Tritoniiformes Férussac 1822 now is considered as lesser taxon of Order Nudibranchia Cuvier, 1817)

Family Dendronotidae Gray 1857

Genus Dendronotus Alder et Hancock 1845

  • Dendronotus robustus Verrill, 1870 - marine, benthic, sublittoral – Рогинская, 1987.
  • Dendronotus frondosus (Ascanius, 1774) - marine, benthic, littoral, sublittoral – Рогинская, 1962.
  • Dendronotus niveus Ekimova, Korshunova, Schepetov, Neretina, Sanamyan et Martynov, 2015 – tip. locality, marine, benthic, sublittoral, common. (Ekimova et al., 2015)
  • Dendronotus kalikal Ekimova, Korshunova, Schepetov, Neretina, Sanamyan et Martynov, 2015 – marine, benthic, sublittoral, rare (Ekimova, pers. data).
  • Dendronotus lacteus Thompson, 1840 – arine, benthic, sublittoral, rare (Ekimova, pers. data).

Earlier there were two more nudibrabch species in the Catalogue:

Dendronotus arborescens Müller 1776 – marine, benthic, littoral, sublittoral – Броцкая и др., 1963. Currently Dendronotus arborescens sensu Müller 1776 is considered as lesser synonym of D. frondosus (Ekimova, 2015)

Dendronotus dalli Bergh, 1879 - marine, benthic, sublittoral – Рогинская, 1987. Currently Dendronotus dalli sensu Рогинская, 1987 is considered as lesser synonym of D. niveus (Ekimova, 2015)

Family Aeolidiidae D’Orbigny 1834

Genus Aeolidia Cuvier 1797

  • Aeolidia papillosa (Linnaeus 1761) - marine, littoral, sublittoral, common – Рогинская, 1962.

Family Fionidae Gray, 1857

Families Eubranchidae Odhner 1934 and Tergipedidae Bergh, 1889 (earlier - Family Cuthonidae Odhner 1939) listed in the previuos version of the Catalogue are considered now as lesser synonimes of the family Fionidae. All species are shifted to the Fionidae.

Genus Eubranchus Forbes, 1838

  • Eubranchus odhneri (Derjugin et Gurjanova 1926), syn. Amphorina odhneri (Derjugin et Gurjanova 1926) - marine littoral, sublittoral, rare - Рогинская, 1987; Ekimova.
  • Eubranchus rupium Muller, 1842 (earlier - Nudibranchus rupium) - marine, benthic, littoral and sublittoral, abundant. Added to the list in 2013 as a result of revision (Ekimova)

In ther printed Catalogue (2008) there were two more species of the genus Eubranchus Forbes 1838 - E. exiguus и E. tricolor, doubtfully registered in the White Sea (Мартынов, Коршунова, 2011).

1) Eubranchus exiguus (Alder et Hancock 1848) (marine, littoral, sublittoral – Рогинская, 1962) - now considered now as lesser synonym of N. exiguus and wasn't accounted in the White Sea (Мартынов, Коршунова, 2011)

2) Eubranchus tricolor Forbes 1940 (marine, littoral, sublittoral – Рогинская, 1962) - wasn't accounted in the White Sea; possibly mistake of identification (Мартынов, Коршунова, 2011)

Genus Cuthonella Bergh, 1884

  • Cuthonella marisalbi Roginskaya, 1963 – type locality, marine, sublittoral (Рогинская, 1963).
  • Cuthonella concinna (Alder et Hancock 1848) (lesser synonyms Cuthona concinna Alder et Hancock 184; Cuthonella marisalbi Roginskaya, 1963)- marine, sublittoral, littoral; considered as rare by Рогинская, 1962; and common by Ekimova, 2015).
  • Cuthonella hiemalis Roginskaya, 1987 (Cuthona hiemalis Roginskaya 1987) – type locality, marine, littoral, sublittoral (Рогинская, 1962 as C. pustulata; Рогинская, 1987).

Genus Cuthona Alder & Hancock, 1855

  • Cuthona nana (Alder & Hancock, 1842)- marine, benthic, sublittoral, rare. Added to the list in 2013 (Ekimova)

Genus Tenellia Alder et Hancock, 1855 (earlier listed as Trinchesia Ihering 1879 in the hard copy of the Catalogue) Tenellia viridis (Forbes 1840) - marine, littoral, sublittoral – Рогинская, 1962. Trinchesia viridis (Forbes 1840) listed earlier is a lesser synonym. Genus Trinchesia Ihering 1879

  • Trinchesia viridis (Forbes 1840) - marine, littoral, sublittoral – Рогинская, 1962.
  • Trinchesia pustulata (Alder et Hancock, 1854) - marine, benthic, sublittoral, common. Added to the list in 2013 (Ekimova). Trinchesia pustulata (Alder et Hancock, 1854) is a lesser synonym.

rus:Отряд Tritoniiformes Férussac 1822

Family Flabellinidae Bergh in Carus, 1889 (earlier Family Coryphellidae Bergh 1889)

Genus Flabellina Gray, 1833

  • Flabellina gracilis Alder et Hancock, 1844 (Coryphella gracilis (Alder et Hancock 1844)) - marine, littoral, sublittoral
  • Flabellina verrucosa M. Sars, 1829 (Coryphella verrucosa (M. Sars 1829)) - marine, littoral, common – Броцкая и др. 1963; Рогинская, 1962 as Coryphella lineata Lovén 1846.
  • Flabellina nobilis Verrill, 1880 - marine, benthic, sublittural, common. Added to the list in 2013 (Ekimova)
  • Flabellina polaris Volodchenko, 1946 - marine, benthic, sublittural, rare. Added to the list in 2013 (Ekimova)

Род Coryphella currently invalid, all species moved to genus Flabellina

Род Paracoryphella Miller, 1971

  • Paracoryphella islandica Odhner, 1937 - marine, benthic, sublittural, rare. Added to the list in 2013 (Ekimova)

Род Chlamylla Bergh, 1886

  • Chlamylla atypica Bergh, 1899 - marine, benthic, sublittural, rare. Added to the list in 2013 (Ekimova)

Family Tergipedidae Bergh, 1889 (earlier Family Cuthonidae Odhner 1939)

Genus Cuthonella Bergh, 1884

  • Cuthonella concinna (Alder et Hancock 1848) (lesser synonyms Cuthona concinna Alder et Hancock 1848; Cuthonella marisalbi Roginskaya, 1963) - marine, sublittoral; listed as rare by Рогинская, 1962; now is concidered as common (Ekimova).
  • Cuthonella hiemalis Roginskaya, 1987 (Cuthona hiemalis Roginskaya 1987) – type locality, marine, littoral, sublittoral (Рогинская, 1962 as C. pustulata; Рогинская, 1987).

Genus Cuthona Alder & Hancock, 1855

  • Cuthona nana (Alder & Hancock, 1842)- marine, benthic, sublittoral, rare. Added to the list in 2013 (Ekimova)

Genus Trinchesia Ihering 1879

  • Trinchesia viridis (Forbes 1840) - marine, littoral, sublittoral – Рогинская, 1962.
  • Trinchesia pustulata (Alder et Hancock, 1854)- marine, benthic, sublittoral, common. Added to the list in 2013 (Ekimova)

rus:Отряд Tritoniiformes Férussac 1822