2026 · Photo: Boaz Liebes
Glossodoris rufomarginata
Caramel nudibranch
Philippines · Indo Pacific - South China Sea
- Size
- 25–50 mm · max 60 mm
- Native range
- Indo-West Pacific, from East Africa to Japan, Korea, Australia and French Polynesia
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Description
A medium-sized Glossodoris common on Indo-West Pacific reefs, described by Bergh from Ambon. The name means 'red-bordered', after the narrow reddish-brown band around the mantle. As in other Glossodoris, the rear gill leaves curl inwards.
Share link: https://seaslugs.org.il/species/glossodoris-rufomarginata-phillipines-indo-pacific-south-china-sea/
Identification
Pale mantle densely speckled with orange-brown, bordered by a narrow orange- to reddish-brown band with a broad white submarginal band inside it. Rhinophores and gill leaves brownish-grey with contrasting white rachises. Foot edge white.
Similar species
Glossodoris atromarginata has a pale yellow to cream mantle with a black or dark border. G. cincta has a mottled brown mantle with bluish-white, black and yellow bands on the edge.
Habitat & diet
Habitat
Coral and rocky reefs, from shallow water.
Food
Sponges; like other Glossodoris, it feeds on keratose (horny) sponges.