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Tetrapygus niger (test, aboral)
Tetrapygus niger (test, aboral)
Description Aboral side: The interambulacral plates are set with numerous tubercles of diverse size.
Test diameter 64 mm; Caldera, Northern Chile. Author Schultz, Heinke JPG file - 378.90 kB - 1 363 x 1 357 pixels added on 2005-02-23332 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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