1. Species Oceania armata Kölliker, 1853
2. Species Oceania ambigua Agassiz & Mayer, 1899 accepted as Clytia ambigua (Agassiz & Mayer, 1899) (basionym)
3. Species Oceania ampullacea Sars, 1835 accepted as Neoturris pileata (Forsskål, 1775) (unaccepted > junior subjective synonym, possible synonym)
4. Species Oceania blumenbachii Rathke, 1835 accepted as Rathkea octopunctata (M. Sars, 1835) (unaccepted > junior subjective synonym, synonym)
5. Species Oceania brunescens Bigelow, 1904 accepted as Clytia brunescens (Bigelow, 1904) (basionym)
6. Species Oceania carolinae Mayer, 1900 accepted as Malagazzia carolinae (Mayer, 1900) (basionym)
7. Species Oceania coccinea Leuckart, 1856 accepted as Neoturris pileata (Forsskål, 1775) (unaccepted > junior subjective synonym)
8. Species Oceania constricta Patterson, 1859 accepted as Neoturris pileata (Forsskål, 1775) (synonym)
9. Species Oceania coronata Allman, 1871 accepted as Leuckartiara octona (Fleming, 1823) (unaccepted > junior subjective synonym)
10. Species Oceania dinema Péron & Lesueur, 1810 accepted as Amphinema dinema (Péron & Lesueur, 1810) (basionym)
11. Species Oceania discoida Mayer, 1900 accepted as Clytia discoida (Mayer, 1900) (basionym)
12. Species Oceania episcopalis Forbes, 1848 accepted as Neoturris pileata (Forsskål, 1775) (synonym)
13. Species Oceania gaedii Van Beneden, 1867 accepted as Leuckartiara octona (Fleming, 1823) (possible synonym)
14. Species Oceania gelatinosa Mayer, 1900 accepted as Clytia gelatinosa (Mayer, 1900) (basionym)
15. Species Oceania globosa Mayer, 1900 accepted as Clytia globosa (Mayer, 1900) (basionym)
16. Species Oceania gregaria L. Agassiz, 1862 accepted as Clytia gregaria (Agassiz, 1862) (basionym)
17. Species Oceania languida A. Agassiz, 1862 accepted as Clytia hemisphaerica (Linnaeus, 1767) (possible synonym)
18. Species Oceania lesueur Péron & Lesueur, 1810 accepted as Neoturris pileata (Forsskål, 1775) (synonym)
19. Species Oceania magnifica Mayer, 1900 accepted as Clytia hemisphaerica (Linnaeus, 1767) (possible synonym)
20. Species Oceania octocostata M. Sars, 1835 accepted as Melicertum octocostatum (M. Sars, 1835) (basionym)
21. Species Oceania pacifica Agassiz & Mayer, 1899 accepted as Clytia pacifica (Agassiz & Mayer, 1899) (basionym)
22. Species Oceania phosphorica Péron & Lesueur, 1810 accepted as Clytia phosphorica (Péron & Lesueur, 1810) accepted as Clytia hemisphaerica (Linnaeus, 1767) (basionym)
23. Species Oceania phosphorica sensu Delle Chiaje, 1841 accepted as Olindias muelleri Haeckel, 1879 (invalid name, misapplication of Oceania phosphorica Péron & Lesueur, 1810)
24. Species Oceania pileus de Blainville, 1830 accepted as Neoturris pileata (Forsskål, 1775) (synonym)
25. Species Oceania polycirrha Keferstein, 1862 accepted as Turritopsis polycirrha (Keferstein, 1862) (genus transfer)
26. Species Oceania sanguinolenta (Modeer, 1791) accepted as Turritopsis polycirrha (Keferstein, 1862) (possible synonym)
27. Species Oceania sedecimacostata Kölliker, 1853 accepted as Pandea conica (Quoy & Gaimard, 1827) (unaccepted > junior subjective synonym)
28. Species Oceania singulare Mayer, 1900 accepted as Clytia singulare (Mayer, 1900) (basionym)
29. Species Oceania tetranema Péron & Lesueur, 1810 accepted as Protiara tetranema (Péron & Lesueur, 1810) (basionym)
30. Species Oceania thelostyla Gegenbaur, 1857 accepted as Stauridiosarsia producta (Wright, 1858) (synonym)
31. Species Oceania tubulosa M. Sars, 1835 accepted as Sarsia tubulosa (M. Sars, 1835) (basionym)
32. Species Oceania turrita Forbes, 1848: accepted as Leuckartiara octona (Fleming, 1823) (synonym)
33. Species Oceania tydemani Bleeker & van der Spoel, 1988 accepted as Oceania armata Kölliker, 1853 (synonym)
34. Species Oceania virens Bigelow, 1904 accepted as Phialucium mbengha (Agassiz & Mayer, 1899) (synonym)
35. Species Oceania viridula Péron & Lesueur, 1810 accepted as Eirene viridula (Péron & Lesueur, 1810) (basionym)
36. Species Oceania ducalis Forbes & Goodsir, 1853 (uncertain > taxon inquirendum)
37. Species Oceania flavidula Péron & Lesueur, 1810 (uncertain > taxon inquirendum)
38. Species Oceania globulosa Forbes, 1848 (uncertain > taxon inquirendum)
39. Species Oceania pusilla Gosse, 1853 (uncertain > taxon inquirendum)

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