Lembeh — 3 September 2026
- Location seen
- Lembeh, Indonesia
- Date seen
- 2026-09-03
- Depth
- 15
Dermatobranchus fortunatus
Fortunate Armina
© Di Syrett / MacroDivers.com
About this species
- Current scientific name
- Dermatobranchus fortunatus
- Common name
- Fortunate Armina
- Order
- Nudibranchia - Cladobranchia
- Type
- arminina
- Genus
- Dermatobranchus
- Species
- fortunatus
- Average size
- 12 mm
- Colours
- white, black, orange, brown
- Pattern
- spots, blotches
- Body shape
- Elongate
- Rhinophores
- Horizontal
- Gills
- Hidden
- Similar species
- Madagascar variant
Geographic Distribution
Indo-Pacific.
Identification
Small Arminid but without the longitudinal ridges that are typically found on Arminids. White with black dots around the edge and a dotty line down the centre of the dorsum. It also has brown/orange on the mantle edge, rhinophores and the margin of the oral veil.
General Notes
There is another species that is almost identical but without the orange markings found in Madagascar.