Phylum： Echinodermata 棘皮動物門
Class： Echinoidea 海膽綱
Family： Echinarachniidae 棘蛛網海膽科
Scientific name： Echinarachnius parma
Chinese name： 盾形網溝海膽
Author： (Lamarck, 1816)
Size： 38.37mm
Description： 38.37x37.90x7.67mm, w/o spines, USA
Acknowledgement：This specimen is one of those echinoidea specimens that were exchanged from my friend Marco Fantin (Italy). I would like to express my thanks to him to broaden my echinoidea collection.
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