Phyllodesmium serratum
Phyllodesmium serratum is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae. The distribution of Phyllodesmium serratum includes Australia and Japan. The length of the slug is usually 10–25 mm, but its length can reach up to 40 mm. Phyllodesmium serratum feeds on soft corals.
photo credits:
Steve Childs
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