Cladodactyla planci Brandt, 1835
Cucumaria doliolum Lamk., partim., 18??
Cucumaria planci von Marenzeller, 1893
Possibly also:
Holothuria brunneus (W. thomson, 1840, ex Forbes, MS), non Chamisso & Eysenhardt, 1821
Ocnus brunneus, Forbes & Goodsir, in Forbes, 1841