Class Echinoidea Family Arachnoididae Rank Species | Order Clypeasteroida Genus Ammotrophus | |
Ammotrophus arachnoides is a species of sand dollar of the family Arachnoididea. Their external skeleton [test] is covered with spines. It belongs to the genus Ammotrophus and lives in the sea off southern Australia. Ammotrophus arachnoides was first scientifically described in 1938 by Hubert Lyman Clark.
References
Ammotrophus arachnoides Wikipedia(Text) CC BY-SA