PLATE 103. 
Hyalonema (Skianema) umbraculum LENDENFELD. 
Figures 1-36. 
1-8.— Large macramphidises; magnified 100; phot. Zeiss, apochr. 16, compens. oc. 6: 
1, 3, 5, 7, focussed high (on the uppermost teeth); 2, 4, 6, 8, focussed lower (on the shaft) (1 = 2; 
on On —1Ol e/a) s 
9-13.— Superficial pmules; magnified 300; phot. Zeiss, apochr. 8, compens. oc. 12. 
14-23.— Large macramphidiscs; magnified 100; phot. Zeiss, apochr. 16, compens. oc. 6: 
14-21, side-views; 
22, an oblique view; 
23, an apical view. 
24-26.— Small macramphidises; magnified 100; phot. Zeiss, apochr. 16, compens. oc. 6. 
27-29.— Small micramphidises; magnified 500; phot. Zeiss, H. I. apochr. 2, compens. oc. 6. 
30-34.— Large micramphidises; magnified 500: 
30-32, 34, phot. Zeiss, H. I. apochr. 2, compens. oc. 6; 
33, phot. Zeiss, apochr. 4, compens. oc. 12. 
35, 36.— A large micramphidise; magnified 500; phot. Zeiss, H. I. apochr. 2, compens. oc. 6: 
35, focussed high (on the uppermost teeth); 36, focussed lower (on the shaft). 
Hyalonema (Thallonema) geminatum LENDENFELD. 
Figures 37-62. 
37, 38.— One anchor and part of the shaft of a large micramphidise; magnified 2000; u. v. phot. Zeiss, 
q. monochr. 1.7, q. oc. 10: 
37, focussed lower (on the shaft); 38, focussed high (on the uppermost teeth). 
39-44.— Microhexactines; magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6. 
45-48. — Parts of microhexactines (47, 48) and two whole ones (45, 46); magnified 500; phot. Zeiss, 
H. |. apochr. 2, compens. oc. 6. 
49-52.— Small micramphidises; magnified 500; phot. Zeiss, H. I. apochr. 2, compens. oc. 6. 
53-57.— Large micramphidises; magnified 500: 
53, phot. Zeiss, apochr. 8, compens. oc. 12; 
54-57, phot. Zeiss, H. I. apochr. 2, compens. oc. 6. 
58-62.— Superficial pinules; magnified 300; phot. Zeiss, apochr. 8, compens. oc. 12. 
