WoRMS name details
original description
Baker, A. N. & Rowe, F. W. E. 1990. Atelostomatid sea urchins from Australian and New Zealand waters (Echinoidea: Cassiduloida, Holasteroida, Spatangoida, Neoplampadoida). Invertebrate Taxonomy 4, 281-316. page(s): 312 [details] Available for editors [request]
From editor or global species database
Diagnosis Palaeopneustid genus with 4 genital pores, right anterior occurring with madreporite; weakly developed ambulacral pores, pores double, but pore pairs heavily reduced in anterior side of anterior ambulacra, ambulacra sub-petaloid; labrum elongate, plastron short; 3 tubefeet each side within sub-anal fasciole. [details]
Etymology acantha (Greek) = spine, trema (Greek) =hole, referring to the peculiar plates surrounding the anal aperture; [details]
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