Flabellina rubrolineata from the Dampier Archipelago, WA (Photo: Lisa Kirkendale/Nerida Wilson)
Flabellina rubrolineata from the Dampier Archipelago, WA (Photo: Lisa Kirkendale/Nerida Wilson)

Red-lined Flabellina

Flabellina rubrolineata

This is small and flamboyantly colored species of aeolid, with variable degree of pink-red coloration, including lined and unlined individuals, on the body and cerata.

Morphology

The 'typical' colour form of Flabellina rubrolineata, is the red lines that gives it is name. Some animals have no red lines and in others they appear as a series of red spots. In this species, in comparison to conspecifics, the rhinophore club is papillate, but there are papillae only on the posterior side of the rhinophores.

Evolution

Little is known about the relationship of this species to other members of the genus.

Method of reproduction

Sexual, hermaphrodites. In most aeolids the eggs and sperm producing structures (gonads) of the reproductive system consist of small spherical sac-like structures (acinus, acini) which sit in the body cavity above the viscera. Usually there are separate male and female acini. Each acinus has a fine duct connecting it to the rest of the reproductive system.

Habitat

Marine

Distribution

This is a widespread Indo-west Pacific tropical and subtropical species. In Australia, it is known from New South Wales, Northern Territory, Queensland, Victoria and Western Australia (Australian Fauna Directory website, searched 2/06/2017).

Taxonomy

Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Dexiarchia
Infraorder: Cladobranchia
Superfamily: Flabellinoidea
Family: Flabellinidae
Genus: Flabellina
Name Published Year: 1929
Scientific Name Authorship: O'Donoghue
Commercial Impact: 

It is recorded at WoRMS as a pest in the Aegean, Levantine & Mediterranean seas.

Conservation Assessment: Least Concern

Net Conservation Benefits Fund

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Western Australian Museum Collections https://museum.wa.gov.au/online-collections/names/flabellina-rubrolineata
Accessed 12 Aug 2024

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