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Prionocidaris baculosa (interambulacrum)
Description Close-up of interambulacrum: Outside the ring of scrobicular tubercles there are some alternating ones. The median space is filled with smaller tubercles decreasing in size towards the vertical suture. In the ambulacra the pore-pairs are strongly conjugate, each pair separated from the next one by a sharp ridge.Diameter of test 60 mm, height 41 mm; Philippines.
CN JPG file - 231.72 kB - 1 368 x 719 pixels added on 2005-02-23267 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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