Lembeh — 10 September 2025
- Location seen
- Lembeh, Indonesia
- Date seen
- 2025-09-10
Goniobranchus fidelis
Faithful Sea Slug
© Di Syrett / MacroDivers.com
About this species
- Current scientific name
- Goniobranchus fidelis
- Common name
- Faithful Sea Slug
- Previous genera
- Chromodoris, Glossodoris
- Order
- Nudibranchia - Doridoidea (Dorids)
- Type
- Cryptobranchia (Cryptobranch dorids)
- ID confidence
- Confirmed
- Genus
- Goniobranchus
- Species
- fidelis
- Average size
- 30 mm
- Colours
- white, black, cream, red
- Pattern
- Edged mantle
- Body shape
- Oval
- Rhinophores
- Horizontal
- Gills
- External gill plume
Geographic Distribution
Widespread in Indo-Pacific.
Identification
Small nudi with white to cream saddle with wavy edge. The mantle margin is red. The gills and rhinophores are black. The simple gills have up to 8 branches and are retractable. The rhinophores (also retractable) are lighter in colour at the base and black on the tips. Also retractable.
General Notes
This attractive small nudi is fairly common.
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.