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Acanthocidaris curvatispinis (spines, pedicellaria, apical system)
Description Left to right: a. Part of transverse section of aboral primary spines (A. "maculicollis"): The interspaces betweem the more or less prominent ridges are filed with cortical meshwork. b. Adoral primary spines (left: upper side, right: underside). c. Valve of globiferous pedicellaria. d. Apical system: The radial prolongations of the tubercles have a darker colour.a. Scale 250 µ, b. Scale 5 mm, c. Scale 250 µ, d. Scale 4 mm. JPG file - 157.50 kB - 1 536 x 583 pixels added on 2011-02-23262 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke
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