Heteractis

Genus-group taxon name Heteractis may refer to:

In Regnum Plantae:
- Heteractis de Candolle, 1838 (Magnoliopsida:Asteraceae): Doubtful genus

In Regnum Bacteria:
- Heteractis de Candolle, 1838 (Cyanobacteria:Rivulariaceae): Accepted genus
- Heteractis Kützing, 1843 (Cyanobacteria:Rivulariaceae): Junior homonym and synonym of Rivularia (Accepted) Agardh ex Bornet & Flahault, 1886

In Regnum Animalia:
- Heteractis Milne Edwards & Haime, 1858 (Anthozoa:Stichodactylidae): Accepted senior homonym
- Heteractis Allman, 1864 (Hydrozoa:Corymorphidae): Junior homonym, accepted as Euphysa Forbes, 1848
- Heteractis Gabb & Horn, 1862 (Bryozoa:Lunulitidae): Junior homonym and doubtful genus
- Heteractis Lambert, 1897 (Echinoidea:Glyptocidaridae): Junior homonym, accepted as Glyptocidaris A. Agassiz, 1864

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