species: Ophiothrix (Acanthophiothrix) sp. 2 in Lizard Island Field Guide (Lizard Island Field Guide)
Ophiothrix (Acanthophiothrix) sp. 2

©Anne Hoggett: Ophiothrix (Acanthophiothrix) sp. 2, very difficult to see on the surface of a Goniopora coral in the lagoon entrance channel, Lizard Island. Arms are at least 7 times the disc diameter which is estimated at about 2 mm in this specimen.
Kingdom Animalia
Phylum Echinodermata
Class Ophiuroidea
Order Ophiurida
Family Ophiotrichidae
Genus Ophiothrix
Species Ophiothrix (Acanthophiothrix) sp. 2



Distinguishing features

A tiny, delicate brittlestar with a dark midline on each arm that extends to the centre of the disc. Arm spines long and spine ridges well-separated from each other. Disc appears to lack any spines or granules.


  • Up to 1.5 cm (arm length)

Depth range

  • Depth range data is not yet available.



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