Sclerodactyla

Ayres, 1851

2 species

There are 10 tentacles. The calcareous ring has medium length forked tails which are undivided or consist of only a few pieces. In the body skin there are genuine tables with 4 columns. (Panning, 1949)

Calcareous ring of 10 pieces, the radial with a posterior bifurcate prolongation. No calcareous deposits in the body wall itself. Pedicels with deposits of terminal plates and tables with a rod-like disc. (HBF)

Tentacles 10. Calcareous ring compact, short, tubular, with the radial and interradial plates fused for most of their length; posterior processes of the radial plates of medium length, usually broken into a few large pieces of calcite, rarely processes unbroken. (Thandar, 1989)