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Ammotrophus cyclius (oral)
Ammotrophus cyclius (oral)
Description Oral side: The combed areas (darker shadowed) are considerably smaller than in Arachnoides and Fellaster. The periproct is positioned on the oral side, unique in extant Arachnoididae. Six interambulacral plates are isolated at the margin.
Test length 47 mm; Encounter Bay, Adelaide, South Australia. Author Smith, Andrew B. JPG file - 338.03 kB - 1 181 x 1 217 pixels added on 2005-02-23299 viewsEchinoidea taxaDigital photo, part of species Ammotrophus cyclius H.L. Clark, 1928checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Smith, Andrew B.
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