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Plesiodiadema horridum (apical system + ambulacral plates)
Plesiodiadema horridum (apical system + ambulacral plates)
Description a. Apical system: In contrast to P. globulosum, this species has smaller and more numerous periproctal plates. b. Ambulacral plates: The primary tubercles are smaller than in P. globulosum and the areoles of the interambulacral primary tubercles reach the sutures. The buccal plates are naked.
a. no scale, test diameter 20 mm; b. Scale 2 mm. Author Mortensen, Theodor JPG file - 109.69 kB - 793 x 483 pixels added on 2011-02-23219 viewsEchinoidea taxaScan of drawing Plesiodiadema horridum (A. Agassiz, 1898)checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... Download full sizeDownload full size © 2011 Mortensen, Theodor
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