Rhabdomolgus

Keferstein, 1862

1 species

Tentacles without digits, simply am Rande leicht gelappt. Cartilaginous ring remarkably weak. Polian vesicle single. Stone canal single, non-calcareous. Ciliated funnels wanting. Calcareous particles entirely wanting. (Clark, 1907)

Calcareous deposits absent. Tentacles 10, simple, finger shaped. Only 1 species. (Mortensen, 1927)