Flabellum  is een geslacht van neteldieren uit de klasse van de Anthozoa (bloemdieren).

Soorten 
 Flabellum (Flabellum) angustum Yabe & Eguchi, 1942
 Flabellum (Flabellum) arcuatile Cairns, 1999
 Flabellum (Flabellum) areum Cairns, 1982
 Flabellum (Flabellum) atlanticum Cairns, 1979
 Flabellum (Flabellum) australe Moseley, 1881
 Flabellum (Flabellum) campanulatum Holdsworth, 1862
 Flabellum (Flabellum) chunii Marenzeller, 1904
 Flabellum (Flabellum) cinctutum Cairns & Polonio, 2013
 Flabellum (Flabellum) curvatum Moseley, 1881
 Flabellum (Flabellum) flexuosum Cairns, 1982
 Flabellum (Flabellum) floridanum Cairns, 1991
 Flabellum (Flabellum) folkesoni Cairns, 1998
 Flabellum (Flabellum) gardineri Cairns, 1982
 Flabellum (Flabellum) impensum Squires, 1962
 Flabellum (Flabellum) knoxi Ralph & Squires, 1962
 Flabellum (Flabellum) lamellulosum Alcock, 1902
 Flabellum (Flabellum) magnificum Marenzeller, 1904
 Flabellum (Flabellum) ongulense Eguchi, 1965
 Flabellum (Flabellum) patens Moseley, 1881
 Flabellum (Flabellum) pavoninum Lesson, 1831
 Flabellum (Flabellum) politum Cairns, 1989
 Flabellum (Flabellum) thouarsii Milne Edwards & Haime, 1848
 Flabellum (Flabellum) transversale Moseley, 1881
 Flabellum (Flabellum) vaughani Cairns, 1984
 Flabellum (Ulocyathus) alabastrum Moseley in Thompson, 1873
 Flabellum (Ulocyathus) angulare Moseley, 1876
 Flabellum (Ulocyathus) aotearoa Squires, 1964
 Flabellum (Ulocyathus) apertum Moseley, 1876
 Flabellum (Ulocyathus) conuis Moseley, 1881
 Flabellum (Ulocyathus) daphnense Durham & Barnard, 1952
 Flabellum (Ulocyathus) deludens Marenzeller, 1904
 Flabellum (Ulocyathus) hoffmeisteri Cairns & Parker, 1992
 Flabellum (Ulocyathus) japonicum Moseley, 1881
 Flabellum (Ulocyathus) lowekeyesi Squires & Ralph, 1965
 Flabellum (Ulocyathus) macandrewi Gray, 1849
 Flabellum (Ulocyathus) marcus Keller, 1974
 Flabellum (Ulocyathus) marenzelleri Cairns, 1989
 Flabellum (Ulocyathus) messum Alcock, 1902
 Flabellum (Ulocyathus) moseleyi Pourtalès, 1880
 Flabellum (Ulocyathus) sexcostatum Cairns, 1989
 Flabellum (Ulocyathus) tuthilli Hoffmeister, 1933

Uitgestorven soorten 
 Flabellum gallapagense Milne Edwards & Haime, 1848 †
 Flabellum laciniatum (Philippi, 1841) †
 Flabellum (Flabellum) galapagense Milne Edwards & Haime, 1848 †

Rifkoralen