Acabaria abyssicola Kükenthal, 1909 (basis of record)
Acabaria africana (Kükenthal, 1908) accepted as Melithaea africana (Kükenthal, 1908) (basis of record)
Acabaria rosea Tixier-Durivault, 1954 (basis of record)
Acanthastrea dipsacea (Lamarck, 1816) (basis of record)
Acanthastrea irregularis Quelch, 1886 (basis of record)
Acanthocyathus stokesii (Milne Edwards & Haime, 1848) accepted as Paracyathus stokesii Milne Edwards & Haime, 1848 (basis of record)
Acanthogorgia (Blepharogorgia) schrammi (Duchassaing & Michelotti, 1864) represented as Acanthogorgia schrammi (Duchassaing & Michelotti, 1864) (basis of record)
Acanthogorgia acrosoma Grasshoff, 1999 (basis of record)
Acanthoisis flabellum Wright & Studer, 1889 (basis of record)
Acanthomuricea rubra var. robusta (Thomson & Simpson, 1909) (basis of record)
Aceractis Andres, 1883 (basis of record)
Aceractis draytoni M. Edw. accepted as Nemactis primula (Drayton in Dana, 1846) (basis of record)
Aceractis nexilis accepted as Stephanauge nexilis (Verrill, 1883) (basis of record)
Acerominyas Andres, 1884 (basis of record)
Acerominyas viridula (Quoy & Gaimard, 1833) accepted as Actinecta viridula (Quoy & Gaimard, 1833) (basis of record)
Acontiactis gokhaleae England, 1990 (additional source)
Acontiaria Stephenson, 1935 (basis of record)
Acontiophorum bombayense Parulekar, 1968 (basis of record)
Acontiophorum bombayensis Parulekar, 1968 accepted as Acontiophorum bombayense Parulekar, 1968 (additional source)
Acontiophorum mortenseni Carlgren, 1938 (additional source)
Acontiophorum niveum Fautin, Eppard & Mead, 1988 (additional source)
Acraspedanthus elongatus Carlgren, 1924 accepted as Isoparactis ferax (Stuckey, 1909) (basis of record)
Acraspedanthus ferax (Stuckey, 1909) accepted as Isoparactis ferax (Stuckey, 1909) (additional source)
Acremodactyla Kwietniewski, 1897 (basis of record)
Acremodactyla ambonensis Kwietniewski, 1897 accepted as Actinodendron arboreum (Quoy & Gaimard, 1833) (basis of record)
Acropora (Acropora) gravida (Dana, 1846) accepted as Acropora florida (Dana, 1846) (basis of record)
Acropora (Acropora) hebes (Dana, 1846) accepted as Acropora aspera (Dana, 1846) (basis of record)
Acropora (Acropora) ocellata (Klunzinger, 1879) accepted as Acropora humilis (Dana, 1846) (basis of record)
Acropora (Acropora) quelchi (Brook, 1893) accepted as Acropora secale (Studer, 1878) (basis of record)
Acropora (Acropora) rambleri (Bassett-Smith, 1890) accepted as Acropora speciosa (Quelch, 1886) (basis of record)
Acropora (Acropora) studeri (Brook, 1893) (basis of record)
Acropora (Acropora) surculosa (Dana, 1846) accepted as Acropora hyacinthus (Dana, 1846) (basis of record)
Acropora (Acropora) teres (Verrill, 1866) (basis of record)
Acropora (Acropora) virgata (Dana, 1846) accepted as Acropora muricata (Linnaeus, 1758) (basis of record)
Acropora (Acropora) wardii Verrill, 1902 accepted as Acropora digitifera (Dana, 1846) (basis of record)
Acropora (Distichocyathus) angulata (Quelch, 1886) accepted as Acropora horrida (Dana, 1846) (basis of record)
Acropora (Distichocyathus) elegans (Milne Edwards, 1860) accepted as Acropora elegans (Milne Edwards, 1860) (basis of record)
Acropora (Distichocyathus) parilis (Quelch, 1886) accepted as Acropora horrida (Dana, 1846) (basis of record)
Acropora (Eumadrepora) arbuscula (Dana, 1846) accepted as Acropora muricata (Linnaeus, 1758) (basis of record)
Acropora (Eumadrepora) aspera (Dana, 1846) accepted as Acropora aspera (Dana, 1846) (basis of record)
Acropora (Eumadrepora) formosa (Dana, 1846) accepted as Acropora muricata (Linnaeus, 1758) (basis of record)
Acropora (Eumadrepora) gracilis (Dana, 1846) accepted as Acropora muricata (Linnaeus, 1758) (basis of record)
Acropora (Eumadrepora) gravida (Dana, 1846) accepted as Acropora florida (Dana, 1846) (basis of record)
Acropora (Eumadrepora) luzonica Verrill, 1902 accepted as Acropora luzonica Verrill, 1902 (basis of record)
Acropora (Eumadrepora) manni (Quelch, 1886) accepted as Acropora aspera (Dana, 1846) (basis of record)
Acropora (Eumadrepora) pacifica (Brook, 1891) accepted as Acropora robusta (Dana, 1846) (basis of record)
Acropora (Eumadrepora) smithi (Brook, 1893) accepted as Acropora robusta (Dana, 1846) (basis of record)
Acropora (Eumadrepora) tutuilensis Hoffmeister, 1925 accepted as Acropora abrotanoides (Lamarck, 1816) (basis of record)
Acropora (Isopora) hispida (Brook, 1891) accepted as Isopora cuneata (Dana, 1846) (basis of record)
Acropora (Isopora) labrosa (Dana, 1846) accepted as Isopora palifera (Lamarck, 1816) (basis of record)
Acropora (Isopora) nobilis (Dana, 1846) accepted as Acropora robusta (Dana, 1846) (basis of record)
Acropora (Isopora) securis (Dana, 1846) accepted as Isopora cuneata (Dana, 1846) (basis of record)
Acropora (Lepidocyathus) convexa (Dana, 1846) accepted as Acropora millepora (Ehrenberg, 1834) (basis of record)
Acropora (Lepidocyathus) obscura (Brook, 1893) accepted as Acropora humilis (Dana, 1846) (basis of record)
Acropora (Lepidocyathus) prostrata (Dana, 1846) accepted as Acropora millepora (Ehrenberg, 1834) (basis of record)
Acropora (Lepidocyathus) studeri (Brook, 1893) (basis of record)
Acropora (Lepidocyathus) subulata (Dana, 1846) accepted as Acropora subulata (Dana, 1846) (basis of record)
Acropora (Polystachys) Brook, 1892 accepted as Acropora Oken, 1815 (basis of record)
Acropora (Polystachys) aculeus (Dana, 1846) accepted as Acropora aculeus (Dana, 1846) (basis of record)
Acropora (Polystachys) anthocercis (Brook, 1893) accepted as Acropora anthocercis (Brook, 1893) (basis of record)
Acropora (Polystachys) cerealis (Dana, 1846) accepted as Acropora cerealis (Dana, 1846) (basis of record)
Acropora (Polystachys) conferta (Quelch, 1886) accepted as Acropora hyacinthus (Dana, 1846) (basis of record)
Acropora (Polystachys) dissimilis Verril, 1902 accepted as Acropora valida (Dana, 1846) (basis of record)
Acropora (Polystachys) quelchi var. paradoxa (Brook, 1893) accepted as Acropora secale (Studer, 1878) (basis of record)
Acropora (Polystachys) rosacea (Esper, 1789) (basis of record)
Acropora (Polystachys) sinensis (Brook, 1893) accepted as Acropora hyacinthus (Dana, 1846) (basis of record)
Acropora (Polystachys) tenuis (Dana, 1846) accepted as Acropora tenuis (Dana, 1846) (basis of record)
Acropora (Rhabdocyathus) carduus (Dana, 1846) accepted as Acropora carduus (Dana, 1846) (basis of record)
Acropora (Rhabdocyathus) hemprichi (Ehrenberg, 1834) accepted as Acropora hemprichii (Ehrenberg, 1834) (basis of record)
Acropora (Rhabdocyathus) valida (Dana, 1846) accepted as Acropora valida (Dana, 1846) (basis of record)
Acropora (Trachylopora) echinata (Dana, 1846) accepted as Acropora echinata (Dana, 1846) (basis of record)
Acropora (Tylopora) canalis (Quelch, 1886) accepted as Acropora robusta (Dana, 1846) (basis of record)
Acropora (Tylopora) leptocyathus (Brook, 1891) accepted as Acropora digitifera (Dana, 1846) (basis of record)
Acropora (Tylopora) pagoensis Hoffmeister, 1925 accepted as Acropora eurystoma (Klunzinger, 1879) (basis of record)
Acropora alliomorpha (Brook, 1893) (basis of record)
Acropora amblyclados (Brook, 1893) (basis of record)
Acropora arabica (Milne Edwards, 1860) accepted as Acropora pharaonis (Milne Edwards, 1860) (basis of record)
Acropora assimilis (Brook, 1892) accepted as Acropora microclados (Ehrenberg, 1834) (basis of record)
Acropora brachiata (Dana, 1846) accepted as Acropora muricata (Linnaeus, 1758) (basis of record)
Acropora brueggemanni var. uncinata (Brook, 1893) accepted as Isopora brueggemanni (Brook, 1891) (basis of record)
Acropora bullata (Brook, 1892) (basis of record)
Acropora canalis (Quelch, 1886) accepted as Acropora robusta (Dana, 1846) (basis of record)
Acropora cancellata (Brook, 1883) (basis of record)
Acropora clavigera (Brook, 1892) accepted as Acropora granulosa (Milne Edwards, 1860) (basis of record)
Acropora cribripora (Dana, 1846) accepted as Acropora aspera (Dana, 1846) (basis of record)
Acropora cyclopea (Dana, 1846) accepted as Acropora robusta (Dana, 1846) (basis of record)
Acropora damicornis (Linnaeus, 1758) accepted as Pocillopora damicornis (Linnaeus, 1758) (basis of record)
Acropora delicatula (Brook, 1891) accepted as Acropora selago (Studer, 1879) (basis of record)
Acropora digitata (Pallas, 1766) accepted as Stylophora pistillata (Esper, 1792) (basis of record)
Acropora dumosa (Brook, 1893) accepted as Acropora loripes (Brook, 1892) (basis of record)
Acropora ehrenbergii (Milne Edwards, 1860) accepted as Acropora pharaonis (Milne Edwards, 1860) (basis of record)
Acropora ehrenbergii var. scandens (Klunzinger, 1879) accepted as Acropora pharaonis (Milne Edwards, 1860) (basis of record)
Acropora formosa var. brachiata (Dana, 1846) accepted as Acropora muricata (Linnaeus, 1758) (basis of record)
Acropora formosa var. gracilis (Dana, 1846) accepted as Acropora muricata (Linnaeus, 1758) (basis of record)
Acropora fruticosa (Brook, 1892) accepted as Acropora humilis (Dana, 1846) (basis of record)
Acropora guppyi (Brook, 1892) accepted as Acropora humilis (Dana, 1846) (basis of record)
Acropora histrix (Dana, 1846) accepted as Acropora cerealis (Dana, 1846) (basis of record)
Acropora hydra (Brook, 1893) (basis of record)
Acropora hystrix (Dana, 1846) accepted as Acropora cerealis (Dana, 1846) (basis of record)
Acropora laxa (Lamarck, 1816) (basis of record)

Madeira for Sagartia affinis Johnson, 1861 
Scotland for Cerianthus vermicularis (Forbes in Johnston, 1847) 

 Homonymy

 for Actinia striata Quoy & Gaimard, 1833

Junior primary homonym of *Actinia striata* Risso, 1826 (type of *Paractinia*) [details]

 Homonymy

 for Actinia striata Rizzi, 1907

Junior primary homonym of *Actinia striata* Risso, 1826 (type of *Paractinia*), and of Quoy and Gaimard, 1833 [details]

 Synonymy

 for Anemonia melanaster (Verrill, 1901)

Status of the species needs investigation [details]

 Taxonomy

 for Corynactis albida Agassiz, 1859

This is not considered a valid species. The name has been applied to two species: Haloclava producta (Stimpson, ... [details]

 Validity

 for Boloceroides hermaphroditica Carlgren, 1900

Possible synonym of Bolocera mcmurrichi. [details]

 Validity

 for Edwardsioides mamillata (Bourne, 1916)

nomen dubium according to Williams, 1981 [details]

 Validity

 for Euphellia cinclidifera Pax, 1908

Also treated as a synonym of Telmatactis cricoides (Duchassaing, 1850). [details]