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Goniobranchus geometricus

Geometric Goniobranchus

© Di Syrett / MacroDivers.com

About this species

Current scientific name
Goniobranchus geometricus
Common name
Geometric Goniobranchus
Previous genera
Chromodoris
Order
Nudibranchia - Doridoidea (Dorids)
Type
Cryptobranchia (Cryptobranch dorids)
ID confidence
Confirmed
Genus
Goniobranchus
Species
geometricus
Average size
35 mm
Colours
white, black, green
Pattern
Spots, Tubercles
Body shape
Oval
Rhinophores
Horizontal
Gills
External gill plume
Similar species
Goniobranchus hintuanensis

Geographic Distribution

Indian and western Pacific oceans.

Identification

Common. Cute little nudibranch with black body and white circular tubercles. The simple gills and perfoliate rhinophores are tipped with green and both are retractable.

Our Sightings

Lembeh — 12 September 2025

Location seen
Lembeh, Indonesia
Date seen
2025-09-12

Tofo — 1 January 2025

Location seen
Tofo, Mozambique
Date seen
2025-01-01

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.