Ambulacral structures of aspidodiadematids
Description Ambulacral structures of aspidodiadematids: Left: Plesiodiadema molle with simple plates. Only every third plate is set with a primary tubercle. Right: Aspidodiadema nicobaricum with compound plates. The primary tubercles are positioned on the largest element and cover also parts of the adjoining upper and lower elements (at ambitus).
Left: Scale 1 mm; Right: Scale 4 mm.
Author Mortensen, Theodor
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added on 2011-02-23298 viewsTraits taxaScan of drawing Aspidodiadema nicobaricum Döderlein, 1901checked Kroh, Andreas 2021-02-24Scan of drawing Plesiodiadema molle (Döderlein, 1901)checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...
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© 2011 Mortensen, Theodor