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Caenopedina porphyrogigas Anderson 2009, p. 47

Diagnostic Features	Adults large, to at least 100 mm test diameter. Brown spines, length in larger specimens no longer than test diameter. Undifferentiated genital pores, lacking genital grooves. Tubercles of apical system numerous and spread uniformly over plates excluding plate margins. Areoles of interambulacral plate primary tubercles frequently not confluent. Globiferous pedicellariae absent.
Distribution	Recent. Temperate and sub-Antarctic areas of New Zealand and southeastern Australia at depths of 350–1200 m.
Type	Holotype: National Institute of Water and Atmospheric Research, Wellington, New Zealand NIWA 25889.
Classification and/or Status	A species of Caenopedina
Remarks	Described in admirable detail by Anderson (2009).  Anderson, O. F. 2009. The giant purple pedinid - a new species of Caenopedina (Echinodermata: Echinoidea: Pedinidae) from New Zealand and Australia. Zootaxa 2007, 43-57.