PLATE XXXII. 



PAGE 



Figs. 1-10. Hyalonema rohustum, F. E. S., . . 229 



Fig. 1. Lateral view of a great amphidisc ; x 300. 



Fig. 2. Terminal view of the same great amphidisc shown in fig. 1 ; x 300. 

 Figs. 3, 4. Middle-sized amphidiscs ; x 300. 

 Fig. 5. Small amphidisc ; x 300. 

 Fig. 6. Oxyhexact with smooth bent rays ; x 300. 

 Fig. 7. Autodermal pentact pinulus ; x 300. 

 Fig. 8. Oxyhexact with straight echinated rays ; x 300. 

 Fig. 9. Strong tetract with echinated ends from the basal pad ; x 300. 

 Fig. 10. Strong diact with echinated ends and two central echinated knobs ; x 300. 



Figs. 11-16. Hyalonema sp., near Hyalonema {Stylocalyx) clepressum, F. E. S., 231 



Fig. 11. Great slender amphidisc with four cruciately disposed central knobs on 

 the axial beam ; x 300. 



Figs. 12, 13. Middle-sized slender amphidiscs ; x 300. 



Fig. 14. Small amphidisc ; x 300. 



Fig. 15. Oxyhexact with straight smooth rays ; x 300. 



Fig. 16. Autodermal pentact pinulus ; x 300. 



