This fairly large burrowing echinoid was buried in sand under a large rock along the sandy reef between Bigej and Meck Islands. It has been suggested that this could be Rhinobrissus pyramidalis.
Underside of the above specimen.
Also buried under the same rock were a couple of other burrowing echinoids.The smaller yellow one appears to be the same species, while the one with purplish gray patches is Metalia spatagus.
Created 16 June 2018
Updated 5 February 2024