| Selon World Register of Marine Species                               (2 juillet 2015)[1] : sous-genre Flabellum (Flabellum) Lesson, 1831
Flabellum angustum Yabe & Eguchi, 1942Flabellum arcuatile Cairns, 1999Flabellum areum Cairns, 1982Flabellum atlanticum Cairns, 1979Flabellum australe Moseley, 1881Flabellum campanulatum Holdsworth, 1862Flabellum chunii Marenzeller, 1904Flabellum cinctutum Cairns & Polonio, 2013Flabellum curvatum Moseley, 1881Flabellum flexuosum Cairns, 1982Flabellum floridanum Cairns, 1991Flabellum folkesoni Cairns, 1998Flabellum galapagense Milne Edwards & Haime, 1848 †Flabellum gardineri Cairns, 1982Flabellum impensum Squires, 1962Flabellum knoxi Ralph & Squires, 1962Flabellum lamellulosum Alcock, 1902Flabellum magnificum Marenzeller, 1904Flabellum ongulense Eguchi, 1965Flabellum patens Moseley, 1881Flabellum pavoninum Lesson, 1831Flabellum politum Cairns, 1989Flabellum thouarsii Milne Edwards & Haime, 1848Flabellum transversale Moseley, 1881Flabellum vaughani Cairns, 1984
sous-genre Flabellum (Ulocyathus) M. Sars, 1851
Flabellum alabastrum Moseley & Thompson, 1873Flabellum angulare Moseley, 1876Flabellum aotearoa Squires, 1964Flabellum apertum Moseley, 1876Flabellum conuis Moseley, 1881Flabellum daphnense Durham & Barnard, 1952Flabellum deludens Marenzeller, 1904Flabellum hoffmeisteri Cairns & Parker, 1992Flabellum japonicum Moseley, 1881Flabellum lowekeyesi Squires & Ralph, 1965Flabellum macandrewi Gray, 1849Flabellum marcus Keller, 1974Flabellum marenzelleri Cairns, 1989Flabellum messum Alcock, 1902Flabellum moseleyi Pourtalès, 1880Flabellum sexcostatum Cairns, 1989Flabellum tuthilli Hoffmeister, 1933
Flabellum gallapagense M. Edwards & Haime, 1848 †Flabellum laciniatum Philippi, 1841) †
 | Selon ITIS      (2 juillet 2015)[2], Flabellum comprend les espèces : Flabellum alabastrum Moseley, 1876Flabellum angulare Moseley, 1876Flabellum angustum Yabe & Eguchi, 1942Flabellum aotearoa Squires, 1964Flabellum apertum Moseley, 1876Flabellum arcuatile Cairns, 1999Flabellum areum Cairns, 1982Flabellum atlanticum Cairns, 1979Flabellum australe Moseley, 1881Flabellum campanulatum Holdsworth, 1862Flabellum chunii Marenzeller, 1904Flabellum conuis Moseley, 1881Flabellum curvatum Moseley, 1881Flabellum daphnense Durham & Barnard, 1952Flabellum deludens Marenzeller, 1904Flabellum flexuosum Cairns, 1982Flabellum floridanum Cairns, 1991Flabellum folkesoni Cairns, 1998Flabellum fragile Cairns, 1977Flabellum galapagense Milne-Edwards & Haime, 1848Flabellum gardineri Cairns, 1982Flabellum gracile Studer, 1877Flabellum hoffmeisteri Cairns & Parker, 1992Flabellum impensum Squires, 1962Flabellum irregulare Tenison-Woods, 1878Flabellum japonicum Moseley, 1881Flabellum knoxi Ralph & Squires, 1962Flabellum lamellulosum Alcock, 1902Flabellum lowekeyesi Squires & Ralph, 1965Flabellum macandrewi Gray, 1849Flabellum magnificum Marenzeller, 1904Flabellum marcus Keller, 1974Flabellum marenzelleri Cairns, 1989Flabellum messum Alcock, 1902Flabellum mortensi Studer, 1877Flabellum moseleyi De Pourtalès, 1880Flabellum ongulense Eguchi, 1965Flabellum patens Moseley, 1881Flabellum pavoninum Lesson, 1831Flabellum politum Cairns, 1989Flabellum raukawaensis Squires & Keyes, 1967Flabellum rubrum Quoy & Gaimard, 1833Flabellum sexcostatum Cairns, 1989Flabellum sibogae Gardiner, 1904Flabellum spinosum Milne-Edwards & Haime, 1848Flabellum stokesi Milne-Edwards & Haime, 1848Flabellum thouarsii Milne-Edwards & Haime, 1848Flabellum transversale Moseley, 1881Flabellum tubuliferum Tenison-Woods, 1880Flabellum tuthilli Hoffmeister, 1933Flabellum vaughani Cairns, 1984
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