PLATE 79. 



Hyalonema (Hyalonema) grandancora Lendenfeld. 

 Figures 1-26. 



1, 2. — Macramphidiscs; magnified 500: 



1, phot. Zeiss, apochr. 8, compeiis. oc. 12; 



2, phot. Zeiss, apochr. 8, compens. oc. 8. 



3-11. — Small micramphidiscs; magnified 500; phot. Zeiss, H. I. apochr. 2, compens. oc. 6. 

 12. — View of the sponge; reduced 1: 0.85; phot. Zeiss, anastig. 480/412 mm. 

 13-19. — Hexactine megascleres; magnified 30; phot. Zeiss, planar 20 mm. 



20. — Apical view of the lateral ray-cross of a dermal pinule; magnified 300; phot. Zeiss, apochr. 4, 



compens. oc. 6. 

 21-23. — Microhexactines; magnified 500: 



21, phot. Zeiss, H. I. apochr. 2, compens. oc. 6; 



22, 23, phot. Zeiss, apochr. 4, compens. oc. 12. , 

 24, 25. — Large micramphidiscs; magnified 500: 



24, phot. Zeiss, apochr. 4, compens. oc. 12; 



25, phot. Zeiss, H. I. apochr. 2, compens. oc. 6. 



26. — Part of a terminal anchor of a macramphidisc; magnified 500; phot. Zeiss, apochr. 8, compens. 

 oc. 12. 



