Lembeh — 10 September 2025
- Location seen
- Lembeh, Indonesia
- Date seen
- 2025-09-10
Tambja morosa
Gloomy Nudibranch
Tambja morosa - juvenile.© Di Syrett / MacroDivers.com
About this species
- Current scientific name
- Tambja morosa
- Common name
- Gloomy Nudibranch
- Previous genera
- Nembrotha
- Order
- Nudibranchia - Doridoidea (Dorids)
- Type
- Phanerobranchia (Phanerobranch dorids)
- ID confidence
- Probable
- Genus
- Tambja
- Species
- morosa
- Average size
- 100 mm
- Colours
- black, blue, green
- Body shape
- Robust
- Rhinophores
- Horizontal
- Gills
- External gill plume
Geographic Distribution
Widespread in Indo-Pacific.
Identification
A large nudibranch. Black or (dark) blue body which may or may not have blue markings. The non-retractable gills are either blue or green.
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.