Glossodoris rufomarginata -Facts and Photographs

glossodoris rufomarginata

The Glossodoris rufomarginata is a species of colourful sea slug. They are dorid nudibranchs, marine gastropod mollusks. They were first described in 1890 by Bergh.

APPEARANCE

Glossodoris rufomarginata  have an elongated shape. The centre of the mantle has a large number of orange brown spots which are surrounded by a white band. The edges of the mantle have a pronounced orange line. The rhinopores are a brown orange with white tips and the gills are white with brown orange dots. Both the rhinopores and gills are retractable . The foot is white with orange spots on the sides.  This specimen was photographed on Cryptomania dive site in Mtwara in Tanzania at around 8 meters. This specimen was approximately 50 mm in length.

glossodoris rufomarginata

 

IN THE WILD

Glossodoris rufomarginata are not that common in Tanzania but are very occasionally seen. They have  the ability to secrete toxic substances which provides protection against predators. Being fairly slow moving they are easy to observe while diving. They seem to sense a diver and usually head for cover, probably not appreciating having lights shone on them.

HABITAT

The Glossodoris rufomarginata is found across the Indo west Pacific area . They are found on rocky and coral reefs to a depth of 30 meters.

glossodoris rufomarginata

 

DIET

Glossodoris rufomarginata is thought to feed on some species of sponge.

REPRODUCTION

They are simultaneous hermaphrodites and mating takes place by darting. The individual who darts the other first becomes the dominant male and the other the female. Eggs are laid on a solid substrate. When they hatch the larvae become planktonic before growing into adults.

IMAGES

 

glossodoris rufomarginata

GLOSSODORIS RUFOMARGINATA CLASSIFICATION

Kingdom:Animalia
Phylum: Mollusca
Class: Gastropoda
clades
Heterobranchia
Euthyneura
Nudipleura
Nudibranchia
Superfamily:Doridoidea
Family: Chromodorididae
Genus: Glossodoris
Species:Glossodoris rufomarginata

LITERATURE CITED

Sea Slug Forum

 

EQUIPMENT USED

Canon 7D

Ikelite 7D Housing

Twin Ikelite DS 161 Strobes

Flat Ikelite Lens Port

Ikelite Dual Synch Cord 

Ikelite 5.1 inch Port body

 

 

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