Lembeh — 5 September 2026
- Location seen
- Lembeh, Indonesia
- Date seen
- 2026-09-05
- Depth
- 15
Trapania brunnea
Brown Trapania
© Di Syrett / MacroDivers.com
About this species
- Current scientific name
- Trapania brunnea
- Common name
- Brown Trapania
- Order
- Nudibranchia - Doridoidea (Dorids)
- Type
- Phanerobranchia (Phanerobranch dorids)
- ID confidence
- Probable
- Genus
- Trapania
- Species
- brunnea
- Average size
- 18 mm
- Colours
- white, brown, cream
- Pattern
- Spots, Blotches
- Body shape
- With Appendages
- Rhinophores
- Horizontal
- Gills
- External gill plume
- Similar species
- Trapania benni, Trapania euryeia, Trapania stegodon, Trapania kamagong
Geographic Distribution
Indo-Pacific.
Identification
Small Trapania with dark brown to light brown body with tiny white/cream spots and a few white/cream blotches. Like all Trapania it has four lateral appendages. The rhinophores are perfoliate and non-retractable, brown at the base with a white/cream tip. The gills are bipinnate branches with white bases and brown speckling. The oral tentacles are prominent and cream.
Behaviour / Habitat
Trapania brunnea feeds on Entoprocta (Kamptozoa or goblet worms) that live on sponges (most often Mycale species). Trapania brunnea is found on this orange sponge.
Our Sighting
About our records
All sightings and photographs on this page are from our own dives. Locations shown are places where we have personally recorded this species. About MacroDivers.