Phyllodesmium longicirrum
Phyllodesmium longicirrum, head end towards the lower left, crawling on its prey the soft coral Sarcophyton trocheliophorum
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia

clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Dexiarchia
clade Cladobranchia

clade Aeolidida
Superfamily:
Aeolidioidea
Family:
Facelinidae
Subfamily:
Favorininae
Genus:
Phyllodesmium
Species:
P. longicirrum
Binomial name
Phyllodesmium longicirrum
(Bergh, 1905)
Synonyms
  • Myrrhine longicirra
  • Phyllodesmium longicirra

Phyllodesmium longicirrum, common name the solar-powered phyllodesmium, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.[1]

Phyllodesmium longicirrum crawling on the soft coral Sarcophyton trocheliophorum.

Distribution

The distribution of Phyllodesmium longicirrum includes Australia and Indonesia.[2]

Description

This is a very large species, growing to at least 140 mm. Phyllodesmium longicirrum contains photosynthetic zooxanthellae, which allow it to draw energy from sunlight, hence its common name, the solar-powered phyllodesmium.[3] This is actually a misleading name, as several other species of Phyllodesmium are also capable of photosynthesis, although this is developed to the greatest extreme in this species.[4][5]

A closeup of the nudibranch, showing the clusters of zooxanthellae

Ecology

Phyllodesmium longicirrum feeds on soft coral Sarcophyton trocheliophorum (family Alcyoniidae).[2]

References

  1. ↑ Bouchet, P. (2015). Phyllodesmium longicirrum. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-10-07
  2. 1 2 Rudman, W.B., 1998 (October 11) Phyllodesmium longicirrum (Bergh, 1905). [In] Sea Slug Forum. Australian Museum, Sydney.
  3. ↑ Rudman W. B. (1981). "The anatomy and biology of alcyonarian-feeding aeolid opisthobranch molluscs and their development of symbiosis with zooxanthellae". Zoological Journal of the Linnean Society 72(3): 219-262. doi:10.1111/j.1096-3642.1981.tb01571.x.
  4. ↑ Rudman W. B. (1991). "Further studies on the taxonomy and biology of the octocoral-feeding genus Phyllodesmium Ehrenberg, 1831 (Nudibranchia: Aeolidacea)". Journal of Molluscan Studies 57(2): 167–203. abstract.
  5. ↑ Rudman, W.B., 1998 (October 11) Solar-powered sea slugs. [In] Sea Slug Forum. Australian Museum, Sydney.
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