Hallaxa fuscescens

Hallaxa fuscescens
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Nudibranchia
Family:	Actinocyclidae
Genus:	Hallaxa
Species:	H. fuscescens
Binomial name
	Hallaxa fuscescens; (Pease, 1871)

Last updated October 28, 2025

Hallaxa fuscescens is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Actinocyclidae.^[1]

There is some doubt regarding the correct taxonomic classification of this species.^[2]

Distribution

This species is found in the tropical Indo-Pacific Ocean.^[2]

References

↑ Rosenberg, G. (2012). Hallaxa fuscescens. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=599490 on 2012-06-06
1 2 Gosliner, T.M. & Johnson, S. (1994) Review of the genus Hallaxa (Nudibranchia: Actinocyclidae) with descriptions of nine new species. The Veliger, 37(2): 155-191. Accessed from the Sea Slug Forum http://www.seaslugforum.net/find/hallfusc on 2012-02-26

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[WoRMS-1] Rosenberg, G. (2012). Hallaxa fuscescens. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=599490 on 2012-06-06

[Forum-2] 1 2 Gosliner, T.M. & Johnson, S. (1994) Review of the genus Hallaxa (Nudibranchia: Actinocyclidae) with descriptions of nine new species. The Veliger, 37(2): 155-191. Accessed from the Sea Slug Forum http://www.seaslugforum.net/find/hallfusc on 2012-02-26

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