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Tetrapygus niger (test, aboral)
Tetrapygus niger (test, aboral)
Description Regular echinoid Tetrapygus niger, upper side.
Diameter 48 mm; Valdivia, Chile. Author Schultz, Heinke JPG file - 444.51 kB - 1 569 x 1 685 pixels added on 2005-02-23448 viewsTraits taxaDigital photo, part of species Tetrapygus niger (Molina, 1782) accepted as Arbacia nigra (Molina, 1782)checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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