326 JVIE. P. H. GOSSE ON THE DICECIOHS CHAHACTEE OF THE EOTEFEEA. 
Fig. 6. B. ampMceros ; male egg, just laid. 
Fig. 7. B. ampMceros ; female egg, nearly mature. 
Figs. 8, 9, 10. B. ampMceros ; males. 
Fig. 11. B. Bakeri', hinder part of an adult female, a, male egg in the ovisac; d, 
just laid ; c, egg nearly mature ; d, empty egg-shell. 
Fig. 12. B. Bakeri ; male. 
Figs. 13, 14. B. angularis; males. 
Fig. 16. B. Boreas ; empty shell of female egg. 
Fig. 16. B. Boreas ; male egg, mature. 
Fig. 17. B. Boreas’, female, newly bom. 
Figs. 18, 19. B. Boreas ; males, newly bom. 
Fig. 20. B. Mulleri ; male, a, head-mass ; h, eye ; c, muscles ; d, posterior mass 
sperm-sac ; f, urinary concretion ; g, foot. 
Fig. 21. B. Mulleri; penis and foot. 
Fig. 22. B. Mulleri; spermatozoa. 
Fig. 23. B. Mulleri; spiculiform bodies. 
Fig. 24. Sacculus viridis ; adult .female, carrying male eggs. 
Fig. 25. Sacculus mridis; male egg, just laid. 
Fig. 26. Sacculus mridis ; male, newly born. 
Figs. 27, 28, 29. Polyartlira platyptera ; males. 
Figs. 30, 31. Syncliceta tremula {premmed) ; male. 
