PLATE 98. 



Hyalonema (Oonema) henshawi Lendenfeld. 

 Figures 1-7. 



1-6. — -Side-views of macramphidiscs; magnified 500; phot. Zeiss, apochr. 8, compens. oc. 12: 



1, a middle-sized one, focussed high (on the uppermost teeth); 2, focussed lower (on the shaft); 

 3, a small one, focus.sed high (on the uppermost teeth); 4, focussed lower (on the shaft); 

 5, a large one, focussed high (on the uppermost teeth); 6, focussed lower (on the shaft). 



7. — Apical view of a middle-sized macramphidisc ; magnified 500; phot. Zeiss, apochr. 8, compens. oc. 12. 



