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Tritonia sp 11

© Di Syrett / MacroDivers.com

About this species

Current scientific name
Tritonia sp 11
Order
Nudibranchia - Cladobranchia
Type
Dendronotina (Dendronotinids)
ID confidence
Probable
Genus
Tritonia
Species
sp 11
Average size
40 mm
Colours
white, yellow, orange
Pattern
Spots, Mottled
Body shape
Oval
Rhinophores
Ornate/Complex
Gills
Cerata

Identification

Body mainly orange and white. Branched cerata and ornate rhinophores.

Behaviour / Habitat

This rare nudibranch was found under rubble.

General Notes

This is a difficult nudibranch to identify. It may be a Marionia but it matches with Tritonia sp 11 in the book Nudibranch & Sea Slug Identification Indo-Pacific 2nd Edition and this is what I have been advised it is by a nudibranch expert. Both Tritonia and Marionia are within the Tritonlidae group so we can safely say this is a Tritonlidae.

Our Sighting

Lembeh — 24 August 2026

Location seen
Lembeh, Indonesia
Date seen
2026-08-24

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.