The Robust Sea Cucumber (Colochirus robustus) is a tropical sea cucumber species that belongs to the echinoderm family Cucumariidae.
Distribution: Found throughout the Asia Pacific including the Philippines and Indonesia.
Features: Yellow body colour. It is often confused as being a nudibranch because its tentacles resemble the gills of a nudibranch.
Habitat: coral reefs, on the walls of drop offs where there is strong current.
Depth range: 8 – 25 metres
Maximum Length: 6 cm