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2026 · Photo: Boaz Liebes

Gymnodoris citrina (Bergh, 1877)

Hannibal gobble dorid

Philippines · Indo Pacific - South China Sea

Migrant species
Size
⁦8–15⁩ mm
Depth
1 m
Native range
Widespread in the Indo-West Pacific; described from Palau, frequently recorded in southern Japan.

Description

A small lemon-yellow dorid nudibranch. Like other Gymnodoris it is a predator of other sea slugs; the Sea Slug Forum notes reports of cannibalism.

Share link: https://seaslugs.org.il/species/gymnodoris-cf-citrina-phillipines-indo-pacific-south-china-sea/

Identification

Stocky, bright lemon-yellow body with scattered ochre dots on the back, sides and gills. Lamellate rhinophores; about ten low gill plumes in a wide arc in front of the anus; tail about a third of body length.

Similar species

Gymnodoris aurita and G. ceylonica are white or translucent with orange-yellow tubercles rather than an all-yellow body.

Habitat & diet

Habitat

Shallow reefs and sheltered coasts; records mostly from a few metres deep.

Food

Like other Gymnodoris, preys on other sea slugs.

Sources (2)
Gymnodoris citrina