Plate 23 
This plate is from Proceedings of the United States National Museum. 
FIGURE PAGE 
1. Beringius crebricostatus Dali. 193 
2. Volutopsius beringi kobelti Dali. 187 
3. Beringius kennicottii Dali. 194 
4. F til gor aria stearnsii Dali. 167 
