Kingdom: Animalia Linnaeus, 1758
Subkingdom: Eumetazoa Butschli, 1910
unranked: Bilateria Hatschek, 1888
Superphylum: Lophotrochozoa Halanych, Bacheller, Auginaldo, Liva, Hillis & Lake, 1995
Phylum: Mollusca Linnaeus, 1758
Class: Gastropoda Cuvier, 1795
Subclass Heterobranchia J.E. Gray, 1840
Clade: Euthyneura Spengel, 1881
Clade: Euopisthobranchia Jörger et al., 2010
Order: Gymnosomata de Blainville, 1824
Suborder: Gymnoptera van der Spoel, 1976
Family: Hydromylidae Pruvot-Fol, 1954
Genus: Hydromyles Gistel, 1848
Hydromyles globulosus (Rang, 1825) [Psyche]
Family: Laginiopsidae Pruvot-Fol, 1922
Genus: Laginiopsis Pruvot-Fol, 1922
Laginiopsis trilobata Pruvot-Fol, 1922
Suborder: Gymnosomata de Blainville, 1824
Family: Clionidae Gray, 1847
Subfamily: Clioninae Pruvot-Fol, 1924
Genus: Clione Pallas, 1774
Clione antarctica (Smith, 1902) [Clione limacina antarctica]
Clione limacina australis (Bruguière, 1792) [Clio]
Clione limacina (Phipps, 1774) [Clio]
Clione sp. Genus: Pallas, 1774
Genus: Fowlerina Pelseneer, 1906
Fowlerina punctata (Tesch, 1903) [Clio]
Fowlerina zetesios Pelseneer, 1906
Genus: Paedoclione Danforth, 1907
Paedoclione doliiformis Danforth, 1907
Genus: Paraclione Tesch, 1903
Paraclione flavescens (Gegenbaur, 1855) [Clio]
Paraclione longicaudata (Souleyet, 1852) [Clio]
Paraclione pelseneeri Tesch, 1903
Genus: Thalassopterus Kwietniewski, 1910
Thalassopterus zancleus Kwietniewski, 1910
Subfamily: Thliptodontidae Kwietniewski, 1910
Genus: Cephalobrachia Bonnevie, 1913
Cephalobrachia bonnevii Massy, 1917
Cephalobrachia macrochaeta Bonnevie, 1913
Genus: Massya Pruvot-Fol, 1924
Massya longicirrata (Massy, 1917) [Clionopsis]
Genus: Thliptodon Boas, 1886
Thliptodon akatukai Tokioka, 1950
Thliptodon antarcticus Meisenheimer, 1906
Thliptodon diaphanus (Meisenheimer, 1906) [Pteroceanis]
Thliptodon gegenbauri Boas, 1886
Thliptodon schmidti Pruvot-Fol, 1942
Family: Cliopsidae Costa, O.G., 1873
Genus: Cliopsis Troschel, 1854
Cliopsis krohni Troschel, 1854
Genus: Pruvotella Pruvot-Fol, 1942
Pruvotella danae Pruvot-Fol, 1942
Pruvotella pellucida (Quoy and Gaimard, 1832) [Pneumodermon]
Family: Notobranchaeidae Pelseneer, 1886
Genus: Notobranchaea Pelseneer, 1886
Notobranchaea bleekerae van der Spoel & Pafort-van Iersel, 1985
Notobranchaea grandis Pruvot-Fol, 1942
Notobranchaea hjorti (Bonnevie, 1913) [Fowlerina]
Notobranchaea inopinata Pelseneer, 1887
Notobranchaea longicollis (Bonnevie, 1913) [Microdonta]
Notobranchaea macdonaldi Pelseneer, 1886
Notobranchaea tetrabranchiata Bonnevie, 1913
Notobranchaea valdiviae Meisenheimer, 1905
Genus: Schleschia Strand, 1932
Schleschia tetrabranchiata (Bonnevie, 1913) [Notobranchaea]
Family: Pneumodermatidae Pelseneer, 1887
Genus: Abranchaea Zhang,1964
Abranchaea chinensis Zhang,1964
Genus: Platybrachium Minichev, 1976
Platybrachium antarcticum Minichev, 1976
Genus: Pneumoderma Cuvier, 1805
Pneumoderma atlanticum (Oken, 1815) [Pneumodermis]
Pneumoderma degraaffi van der Spoel & Pafort-van Iersel, 1982
Pneumoderma heronensis Newman & van der Spoel, 1989
Pneumoderma mediterraneum van Beneden, 1838
Pneumoderma peroni (Cuvier, 1817) forma heterocotylum (Tesch, 1903)
Pneumoderma peroni (Cuvier, 1817) forma peroni (Cuvier, 1817)
Pneumoderma violaceum d'Orbigny, 1834
Genus: Pneumodermopsis Bronn, in Bronn & Keferstein, 1862
Subgenus: Crucibranchaea Pruvot-Fol, 1942
Pneumodermopsis (Crucibranchaea) macrochira (Meisenheimer, 1905) [Pneumoderma]
Pneumodermopsis (Crucibranchaea) michaelsarsi Bonnevie, 1913
Subgenus: Pneumodermopsis Bronn, in Bronn & Keferstein, 1862
Pneumodermopsis (Pneumodermopsis) canephora Pruvot-Fol, 1924
Pneumodermopsis (Pneumodermopsis) ciliata (Gegenbaur, 1855) [Pneumodermon]
Pneumodermopsis (Pneumodermopsis) macrocotyla Zhang, 1964
Pneumodermopsis (Pneumodermopsis) minuta (Pelseneer, 1887)
Pneumodermopsis (Pneumodermopsis) oligocotyla Massy, 1917
Pneumodermopsis (Pneumodermopsis) paucidens (Boas, 1886) [Dexiobranchaea] forma paucidens (Boas, 1886)
Pneumodermopsis (Pneumodermopsis) paucidens (Boas, 1886) [Dexiobranchaea] forma pulex Pruvot-Fol, 1926
Pneumodermopsis (Pneumodermopsis) polycotyla (Boas, 1886)
Pneumodermopsis (Pneumodermopsis) pupula Pruvot-Fol, 1926
Pneumodermopsis (Pneumodermopsis) simplex (Boas, 1886)
Pneumodermopsis (Pneumodermopsis) spoeli Newman & Greenwood, 1988
Pneumodermopsis (Pneumodermopsis) teschi van der Spoel, 1973
Genus: Schizobrachium Meisenheimer, 1903
Schizobrachium polycotylum Meisenheimer, 1903
Genus: Spongiobranchaea d'Orbigny, 1834
Spongiobranchaea australis d'Orbigny, 1834
Spongiobranchaea intermedia Pruvot-Fol, 1926
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