Sperosoma tristichum (ambulacral plates)
Description Aboral plates of half an ambulacrum: Left: Plate pattern near the apical disc. Right: Plate pattern on distal aboral side. About midway to the ambitus the pattern changes, the broad adapical demiplate becomes smaller; distally it is as small as the adoral demiplate.
Scale 4 mm.
Author Schultz, Heinke
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added on 2011-02-23211 viewsEchinoidea taxaScan of drawing Sperosoma tristichum Mortensen, 1934checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...
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© 2011 Schultz, Heinke