Camptocercus rectirostris. 
1. Post-abdomen of female. 
2. Post-abdomen of male. 
3. Male. 
4. Camptocercus biserratus. Head. 
5 ee latirostris. Head of male. 
6. ue latirostris. Head of female. 
er Bs “ lilljeborgii. Head. 
8 lilljeborgii. Post-abdomen of female. 
9. Acroperus leucocephalus. Post-abdomen of male. 
10: ae angustatus. Post-abdomen of male. 
11. Alona tenuicaudis. Post-abdomen. 
12. ‘* dentata. Post-abdomen. 
iss ‘*  dentata. Female. 
14, ‘* elegans. 
15. ‘* intermedia. Post-abdomen. 
16. Pleuroxus hastatus. 
17. Leptorhynchus faleatus. 
18. Phrixura rectirostris. Post-abdomen. 
19. Kuryeerecus lamellatus. First foot of female. 
20. Alona sanguinea. Shell markings. 
Monospilus tenuirostris Fischer. 
21. Lateral view. 
21a. Head seen from in front. 
Figures 19 to 21 original, others from Kurz, P. E. Maeller and 
Schoedler. 
