Gray J.E., 1857
Contains species of varying sizes. The valves are distinctly sculptured with randomly distributed, raised dorsal papillae. The head valve bears an insertion plate lacking any notches, valves 2-8 have no insertion plates. The girdle is narrow and densely covered by small spicules with numerous larger spines randomly distributed.
Source: Jones and Baxter, 1987.
The following species occurs in the region:
Hanleya hanleyi