Explanation of Plates. 
317 
rig. 
PLATE XIII. 
1. Bunops scutifrons , Birge. Small female. X 65. 
2. Anchistropus minor , Birge. Female from below. X 120. 
3. “ “ Claw of first foot. X 260. 
4. u 11 Anterior part of valve. X 120. 
5. 11 “ - Post-abdomen. X 260. 
6. Chydorus rugulosus , Forbes. Female. X 100. 
7. 11 faviformis , Birge. Cast shell of young 
female. X 100. 
8. u faviformis. Post-abdomen. X 260. 
9. Alona falcata, Sars. Female. X 100. 
10. “ “ Sars. Head from below. X 100. 
11. Pleuroxus hastatus , Sars. Female. 65. 
