PLATE 93. 



Hyalonema (Oonema) crassipinulum Lendenfbld. 

 Figures 1-10. 



1, 2. — Slender small macramphidiscs; magnified 300; phot. Zeiss, apochr. 8, compens. oc. 12. 

 3-8. — Three broad small macramphidiscs; magnified 300; phot. Zeiss, apochr. 8, compens. oc. 12 



3, a middle-sized one, focussed high (on the uppermost teeth); 



4, the same spicule focussed low (on the shaft); 



5, a small one, focussed high (on the uppermost teeth) ; 



6, the same spicule focussed low (on the shaft); 



7, a large one, focussed high (on the uppermost teeth); 



8, the same spicule focussed low (on the shaft). 



9. — View of the specimen; natural size; phot. Zeiss, anastig. 480/412 mm. 



10. — A large macramphidisc ; magnified 100; phot. Zeiss, apochr. 16, compens. oc. 6. 



