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Description
Sagaminopteron is a genus of small gastropterid sea slugs (family Gastropteridae, order Cephalaspidea), known as bat-wing slugs; they are not true nudibranchs. The species live in tropical and warm waters of the Indian and Pacific Oceans (for example S. ornatum from southern Japan and much of Australia). Several species have been seen on or feeding on sponges, but the exact diet of the genus is not fully clear.
Identification
The main feature is the greatly enlarged wing-like parapodia, which let the slug swim by flapping when disturbed. S. psychedelicum is pale green with colour-ringed spots; the colour pattern differs between species.
Species in this genus (2)
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