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. 
