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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: Gastropoda
Subclassis: Heterobranchia
Infraclassis: Euthyneura
Cohors: Ringipleura
SuperOrdo: Nudipleura
Ordo: Nudibranchia
SubOrdo: Doridina
InfraOrdo: Doridoidei
Superfamilia: Chromodoridoidea

Familia: Actinocyclidae
Genera (2): Actinocyclus – Hallaxa
Name

Actinocyclidae O'Donoghue, 1929
References

Gosliner, T.M. & Johnson, S. 1994. Review of the genus Hallaxa (Nudibranchia: Actinocyclidae) with descriptions of nine new species. Veliger 37(2): 155–191. BHL Reference page.
Rudman, W.B. & Bergquist, P.R. 2007. A review of feeding specificity in the sponge-feeding Chromodorididae (Nudibranchia: Mollusca). Molluscan Research 27(2): 60–88. Abstract only seen. Reference page.
Wilson, N.G. 2005: Sperm ultrastructure of the Actinocyclidae (Mollusca, Nudibranchia) and homology of the terminal region of nudibranch sperm. Invertebrate reproduction and development 47(1): 1–9. DOI: 10.1080/07924259.2005.9652141 Paywall. Reference page.

Actinocyclidae is a family of sea slugs, dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea. This family is within the clade Euctenidiacea.[1][2]
Taxonomy

Genera within the family Actinocyclidae include:

Actinocyclus Ehrenberg, 1831[3] - the type genus
Actinocyclus papillatus (Bergh, 1878)
Actinocyclus verrucosus Ehrenberg, 1831[4][5]
Hallaxa Eliot, 1909
Hallaxa albopunctata Gosliner & S. Johnson, 1994
Hallaxa apefae Marcus, 1957
Hallaxa atrotuberculata Gosliner & S. Johnson, 1994
Hallaxa chani Gosliner & Williams, 1975
Hallaxa cryptica Gosliner & Johnson, 1994
Hallaxa decorata Bergh, 1905
Hallaxa elongata Gosliner & S. Johnson, 1994
Hallaxa fuscescens Pease, 1871
Hallaxa gilva Miller, 1987
Hallaxa hileenae Gosliner & Johnson, 1994
Hallaxa iju Gosliner & Johnson, 1994
Hallaxa indecora (Bergh, 1877)
Hallaxa michaeli Gosliner & Johnson, 1994
Hallaxa paulinae Gosliner & Johnson, 1994
Hallaxa translucens Gosliner & S. Johnson, 1994

Each genus also has a synonym. Sphaerodoris is a synonym for Actinocyclus[6] and Halla is a synonym for Hallaxa
References

MolluscaBase (2018). Actinocyclidae O'Donoghue, 1929. Retrieved 2019-02-02.
Bouchet, P.; Rocroi, J.-P. (2005). "Classification and Nomenclator of Gastropod Families". Malacologia. 47 (1–2).
MolluscaBase (2018). Actinocyclus Ehrenberg, 1831. Accessed on 2019-02-02.
Valdés, A. (2002). "Review of the genus Actinocyclus Ehrenberg, 1831 (Opisthobranchia: Doridoidea)". The Veliger. 45 (3). California Malacozoological Society: 193–202. ISSN 0042-3211.
"Steve". Archived from the original on 25 July 2009. Retrieved 19 December 2009.
MolluscaBase (2018). Sphaerodoris Bergh, 1877. Accessed on 2019-02-02.

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