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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Bivalvia
Subclassis: Pteriomorphia
Ordo: Arcida
Superfamilia: Arcoidea

Familia: Arcidae
Genus: Acar
Species: A. abdita – A. agulhasensis – A. bailyi – A. botanica – A. carditaeformis – A. clathrata – A. congenita – A. decorata – A. dubia – A. gradata – †A. harringtoni – A. lepidoformis – A. marsupialis – †A. merope – A. naturezae – A. oliveirae – A. olivercoseli – †A. opuraensis – A. petasion – A. plicata – †A. powelli – A. pusilla – A. requiescens – A. rostae – A. sandersonae – A. sociella – †A. somalica – A. squamosa – A. transmar – †A. whangaensis
Name

Acar Gray, J.E., 1857

Type Species: Byssoarca divaricata G. B. Sowerby I, 1833 = Acar plicata (Dillwyn, 1817) (type by subsequent designation)

Synonyms

Arca (Acar) Gray, 1857
Barbatia (Acar) Gray, 1857 (original rank)

References
Primary references

Gray J.E. 1857. A revision of the genera of some of the families of conchifera or bivalve shells. Part III. Arcadae. Annals and Magazine of Natural History ser. 2 19: 366–373. BHL Reference page. : 369

Links

Acar in the World Register of Marine Species, accessed on 2020-11-10

Acar is a genus of small saltwater clams, marine bivalve mollusks in the family Arcidae, the ark clams.[1]

Some authors consider it to be a subgenus of Barbatia.[2]
Species

Species in this genus include:

Acar abdita P. G. Oliver & Chesney, 1994[1]
Acar agulhasensis (Thiele, 1931)[1]
Acar bailyi Bartsch, 1931[1]
Acar botanica (Hedley, 1917)[1]
Acar carditaeformis (Dautzenberg & H. Fischer, 1897)[1]
Acar clathrata (Defrance, 1816)[1]
Acar congenita (E. A. Smith, 1885)[1]
Acar decorata (Hayami & Kase, 1993)[1]
Acar dubia (Baird, 1873)[1]
Acar gradata (Broderip & G. B. Sowerby I, 1829),[1] from California, US[2]
Acar lepidoformis Francisco, Barros & S. Lima, 2012[1]
Acar marsupialis P. G. Oliver & Holmes, 2004[1]
Acar naturezae Francisco, Barros & S. Lima, 2012[1]
Acar oliveirae Francisco, Barros & S. Lima, 2012[1]
Acar olivercoseli M. Huber, 2010[1]
Acar petasion (Kilburn, 1983)[1]
Acar plicata (Dillwyn, 1817)[1]
Acar pusilla (G. B. Sowerby I, 1833)[1]
Acar requiescens (Melvill & Standen, 1907)[1]
Acar rostae (Berry, 1954)[1]
Acar sandersonae Powell, 1933[1]
Acar sociella (Brookes, 1926)[1]
Acar squamosa (Lamarck, 1819)[1]
Acar transmar Simone, 2009,[1] from Brazil[2]

Although Simone lists another species Acar domingensis,[2] it has been reclassified as Barbatia.[1]
References

"Acar Gray, 1857". World Register of Marine Species. Retrieved March 2, 2015.
Simone, Luiz Ricardo L. (March 2009), "A new species of Acar (Bivalvia, Arcidae) from São Pedro e São Paulo Archipelago, Brazil" (PDF), Novapex, 10 (1): 9–16

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