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Sagaminopteron psychedelicum

2026 · Photo: Boaz Liebes

Sagaminopteron psychedelicum Carlson & Hoff, 1974

Psychedelic batwing

Philippines · Indo Pacific - South China Sea

Size
⁦5–12⁩ mm · max 20 mm
Native range
Indo-West Pacific, from the Red Sea and East Africa to Japan, Guam (type locality), Fiji and Hawaii.

Description

A small, brilliantly coloured headshield slug (Gastropteridae) named for its 'psychedelic' pattern. It lives on Dysidea sponges and, compared with Sagaminopteron ornatum, is a less active swimmer.

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Identification

Pale green ground colour covered with pink (sometimes orange or golden) round spots outlined in black. The parapodia are edged with a broad pink band separated from the body by a thin black line; the head shield has a reddish-tipped crest. A short flagellum is often visible on the right side.

Similar species

Sagaminopteron ornatum has a different colour pattern and is a more active swimmer.

Habitat & diet

Habitat

Coral reefs, reef flats and under rubble, on Dysidea sponges.

Food

Sponges of the genus Dysidea, notably D. granulosa.

Sources (2)

More observations (1)

Sagaminopteron psychedelicum