Phyllodesmium serratum is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.Bouchet, P. (2010). Phyllodesmium serratum (Baba, 1949). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=225502 on 2011-01-08
Distribution The distribution of Phyllodesmium serratum includes Australia and Japan.Rudman, W.B., 1999 (January 26) Phyllodesmium serratum (Baba, 1949). [In] Sea Slug Forum. Australian Museum, Sydney. It has been erroneously synonymised with Phyllodesmium horridum by some authors but does not occur in Africa.
Description The length of the slug is usually 10–25 mm, but its length can reach up to 40 mm.
This species contains no zooxanthellae.
Ecology Phyllodesmium serratum feeds on the soft corals Cornularia sp., Clavularia sp., Carijoa sp. and Steronephthya sp.
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