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Tetrapygus niger (aboral, close-up)
Tetrapygus niger (aboral, close-up)
Description Close-up of aboral interambulacrum: On each plate smaller tubercles are developed above the series of larger ones. A naked median zone is lacking.
Scale 3 mm. Author Schultz, Heinke JPG file - 244.86 kB - 1 150 x 806 pixels added on 2005-02-23290 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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