Rzhonsnitskaya, 1956
Strong, slender, curved radulifer crura attached to small outer hinge plates by their posterodorsal face or to thick socket ridges; crura radulifer, distally pointed and horizontally flattened.
Source: Moore, 1965.
The following taxa that belong to this family occur in this region:
Genus Hemithiris
Hemithiris psittacea