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IMIS Photogallery » Echinodermata (echinoderms) » Echinoidea (sea urchins)
Tetrapygus niger (test, oral)
Tetrapygus niger (test, oral)
Description Oral side: The pore zones are conspicuously widened at the peristomial edge. Consequently the interambulacra are narrow. The buccal notches are shallow and tags small.
Test diameter 64 mm; Caldera, Northern Chile.
Author Schultz, Heinke JPG file - 253.54 kB - 1 102 x 1 134 pixels added on 2005-02-23242 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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