Genus Benthogenia Fisher, 1911

Benthogenia Fisher, 1911: 415 .

TYPE SPECIES. — Benthogenia cribellosa Fisher, 1911 .

DIAGNOSIS. — Emended from Fisher (1911). Cribriform organs present between all marginals from the disc to the tip of the arms. Dorsal distal half part of the arms covered by cribriform organs. Presence of a large oval terminal ossicle bearing up to five or six spines. Terminal ossicle resting on the two to three distalmost superomarginals. No odd interradial marginal. Some superomarginals with large spines. From half length of the arms to the tip, superomarginals in contact dorsally. Inferomarginals and superomarginals corresponding one to one proximally, offset distally. Adambulacrals ossicles with numerous furrow spines (four to eight). Subambulacral smaller spines or spinelets, usually more than 10. Actinal ossicles scale like plates covered with small spinelets, extending almost to the end of the arms. Abactinal paxillae large, bearing up to 35-50 spinelets.