SeaSlugs.חינניות ים עברית

Back to genus MarioniopsisBack to the galleryAdd a comment

2026 · Photo: Boaz Liebes

Marioniopsis arborescens (Bergh, 1890)

Bushy lacedragon

Philippines · Indo Pacific - South China Sea

Size
⁦40–60⁩ mm · max 100 mm
Native range
Indo-West Pacific, including Indonesia and the Philippines.

Description

A tritoniid nudibranch named for its tree-like branched gills. Like other tritoniids it preys on octocorals. Described from Ambon, Indonesia.

Share link: https://seaslugs.org.il/species/marioniopsis-arborescens-phillipines-indo-pacific-south-china-sea/

Identification

Broad, flattened body, pale yellowish-green to greenish-yellow, with small rounded or short conical knobs on the back. Oral veil fringed with finger-like papillae of varying size; rhinophores retract into sheaths. Usually about four tree-like branched gills along each side, greener than the body.

Similar species

Other Marioniopsis (e.g. M. hawaiiensis, M. elongoreticulata) and Marionia species differ in colour pattern and gill shape.

Habitat & diet

Habitat

Coral-reef sand and rubble; records from around 7 m.

Food

Like other tritoniids, feeds on octocorals.

Sources (2)
Marioniopsis arborescens