PLATE 26. 



Farrea occa scutella Lendenfeld. 

 Figures 1-21. 



1-3. — Parts of oxyhexasters; magnified 2000; u. v. phot. Zeiss, q. monochr. 1.7, q. oc. 10: 



1, the distal part of a main-ray with the basal parts of the end-rays arising from it; 



2, a whole end-ray; 



3, the centre and one main-ray with its end-rays. 



4-6. — Oxyhexasters; magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6. 



7. — Oxyhexaster; magnified 500; phot. Zeiss, apochr. 4, compens. oc. 12. 



8. — Surface-view of a dried portion of the marginal part of the body; magnified 30; phot. Zeiss, planar 



30 mm.: 



a, superficial pentactines; b, clavules; c, oxyhexasters. 



9. — The gastral face of a portion of the skeleton-net of the marginal part of the body; magnified 6.6; 



phot. Zeiss, planar 50 mm. 



10. — • View of the free upper face of the basal plate of attachment; magnified 6.6; phot. Zeiss, planar 



50 mm. 



11. — View of the previously attached lower face of the basal plate of attachment; magnified 100; phot 



Zeiss, apochr. 16, compens. oc. 6. 



12. 13. — Portions of the skeleton-net of the upper part of the basal plate of attachment; magnified 100; 



phot. Zeiss, apochr. 16, compens. oc. 6. 



14. — Portion of the skeleton-net of the marginal part of the body; magnified 6.6; phot. Zeiss, planar 



50 mm. 



15. — Apical view of a superficial pentactine; magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6. 



16. 17. — Views of the stalk and central part of the body of a small specimen from opposite sides; magni- 



fied 6.6; phot. Zeiss, planar 50 mm. 

 18, 19. — A specimen with two stalks (probably produced by the partial concrescence of two specimens 

 growing near together); magnified 2.1; phot. Zeiss, anastig. 167 mm.: 



18, seen from the side; 



19, seen from above. 



20, 21. — A regular specimen with a single stalk; magnified 2.1; phot. Zeiss, anastig. 167 mm.: 



20, seen from the side; 



21, seen from above. 



