---
title: Brown-edge Glossodoris (Glossodoris hikuerensis)
scientific_name: Glossodoris hikuerensis
common_name: Brown-edge Glossodoris
taxon: Nudibranch
published: 2026-07-03T13:34:18.998Z
updated: 2026-08-30T10:30:21.321Z
tags: Brown-edge Glossodoris, Glossodoris hikuerensis, Nudibranch, Red Sea, Marine Life, Diving
url: https://redseacreatures.com/taxon/invertebrate/molluscs/nudibranch/brown-edge-glossodoris
---

# Brown-edge Glossodoris (*Glossodoris hikuerensis*)

## Quick facts

- **Group:** Nudibranch (*Nudibranchia*)
- **Size:** 140 mm
- **Depth:** 1-30 m
- **Diet:** Spongivore
- **Activity:** Diurnal
- **Rarity:** Uncommon
- **Habitat:** Coral reefs, rocky slopes
- **Reproduction:** Simultaneous hermaphrodite, Egg layer
- **Hazard:** Poisonous

## How to recognise it

- ruffled mantle edge with white, grayish-black, brownish-white bands
- dorsum with dense opaque white speckles
- rhinophores with solid white vertical line

Glossodoris hikuerensis is a dorid nudibranch reaching up to 30 mm (1.2 in) in length. Its mantle edge is highly ruffled, displaying a distinctive multi-banded pattern: an outermost white border, followed by a stark grayish-black submarginal line, and then a paler brownish-white band. The central dorsum has a tan or light brown base, densely packed with tiny, opaque white speckles that create an almost textured, sandy appearance. Its translucent rhinophores feature a solid white vertical line along their anterior and posterior midlines. The relatively simple branchial plume at the rear is also translucent, with faint brownish-gray edges. This contrasting black and white banding around the mantle serves as an aposematic warning to potential predators.

This species inhabits coral reefs and rocky substrates at depths from 0 to 25 meters (0-82 ft). Like other members of its genus, Glossodoris hikuerensis is a highly specialized sponge feeder. It uses a radula, a tongue-like structure covered in microscopic teeth, to scrape away at specific toxic sponges on the reef. Lacking a protective shell, the nudibranch sequesters toxic metabolites from its sponge diet, storing these chemical defenses in specialized glands located within the heavily ruffled mantle edge. This strategy renders the animal highly unpalatable.

## Also known as

- **English:** Pastel Rainbow Dorid, Brown-edge Glossodorid, Hikueru Glossodoris
- **French:** Doris à bord gris
- **Dutch:** Grijsgerande Doris
- **Japanese:** タヌキイロウミウシ
- **Chinese:** 希吉努多彩海牛, 海奎拉舌海蛞蝓

## Scientific synonyms

- *Rosodoris hikuerensis* Pruvot-Fol, 1954

## Range

Mozambique, South Africa

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*Source: [Red Sea Creatures](https://redseacreatures.com/taxon/invertebrate/molluscs/nudibranch/brown-edge-glossodoris)*
*Updated: August 30, 2026*