Flabellina funeka

Purple lady
Flabellina funeka
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Dexiarchia
clade Cladobranchia
clade Aeolidida

Superfamily: Flabellinoidea
Family: Flabellinidae
Genus: Flabellina
Species: F. funeka
Binomial name
Flabellina funeka
Gosliner & Griffiths, 1981[1]

The purple lady nudibranch, Flabellina funeka, is a species of aeolid nudibranch, and is a very colourful sea slug. It is a marine gastropod mollusc in the family Flabellinidae. [2]

Distribution

This species is endemic to the South African coast and is found only from Cape Point to Port Elizabeth[3] in 5-30 m of water.[4]

Description

The white-bodied form of the purple lady nudibranch

The purple lady is a slender purple-bodied aeolid with red cerata having white tips. It is usually smaller than 45 mm. It has annulate purple rhinophores with pale tips. It has a pair of pale-tipped oral tentacles which are shorter than the rhinophores.[1] It may also be seen in a white-bodied form, but the red cerata and annulate rhinophores are distinctive.[5]

Ecology

This aeolid feeds on hydroids of the genus Eudendrium.[3] In common with other aeolid nudibranchs, the cerata of the purple lady aid in respiration but also contain extensions of the digestive system. The purple lady eats the hydroid and passes its nematocysts unharmed through its digestive system to the tips of its cerata. Here the nematocysts mature and are then used by the nudibranch for its own defence. It is probable that the bright colours of the purple lady serve to advertise to predators that it is toxic.

Despite their common name, purple ladies are hermaphrodites. Their egg mass is highly convoluted and white.

References

  1. 1 2 Gosliner, T. M. and Griffiths, R. J. 1981. Description and revision of some South African aeolidacean Nudibranchia (Mollusca, Gastropoda). Ann. S. Afr. Mus. 84(2):105-150.
  2. Rosenberg, G. (2012). Flabellina funeka. Accessed through: World Register of Marine Species on 2012-05-16
  3. 1 2 Gosliner, T. M. 1987. Nudibranchs of Southern Africa ISBN 0-930118-13-8
  4. Zsilavecz, G. 2007. Nudibranchs of the Cape Peninsula and False Bay. ISBN 0-620-38054-3
  5. Rudman, W.B., 2005 (January 28) Flabellina funeka Gosliner & Griffiths, 1981. [In] Sea Slug Forum. Australian Museum, Sydney.
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