PLATE 19. 



Geodia variospiculosa Thiele. 



Figs. 1-8, 12-18, 21, 23, 25-30, 32.— var. micraster Lendenfeld. 

 Figs. 9-11, 19, 20, 22, 24, 31. — var. intermedia Lendenfeld. 



1, 2. — An umbilical part of the surface of a normal sterraster of var. micraster; magnified 1800; u. v. 

 phot. Zeiss, q. monochr. 1.7, q. oc. 10: 

 1, focused higher; 2, focused lower. 



3. — Cladome of a minute dermal anatriaene of var. micraster; magnified 750; phot. Zeiss, hom. imm. 



apochr. 2, compens. oc. 6. 



4, 5. — Small dermal styles of var. micraster; magnified 300; phot. Zeiss, apochr. 4, compens. oc. 6. 



6. — Minute dermal anamonaene of var. micraster; magnified 300; phot. Zeiss, apochr. 4, compens. oc. 6. 



7, 8. — Minute dermal anatriaenes of var. micraster; magnified 300; phot. Zeiss, apochr. 4, compens. 



oc. 6. 



9, 10. — Minute dermal anatriaenes of var. intermedia; magnified 300; u. v. phot. Zeiss, q. monochr. 6, 

 q. oc. 7. 



11. — An umbilical part of the surface of a normal sterraster of var. intermedia; magnified 1800; u. v. 



phot. Zeiss, q. monochr. 1.7, q. oc. 10. 



12, 13. — Group of asters from a centrifugal spicule-preparation of var. micraster; magnified 1800; 



u. V. phot. Zeiss, q. monochr. 1.7 q. oc. 10: 

 12, focused higher; 13, focused lower; 



a, oxysphaeraster; b, small strongylosphaerasters. 



14. — Cladome of a minute dermal anatriaene of var. micraster; magnified 1800; u. v. phot. Zeiss, q. 



monochr. 1.7, q. oc. 10. 



15, 16. — Sterroid with stout, smooth, spineless rays of var. micraster; magnified 300; phot. Zeiss, 



apochr. 4, compens. oc. 6: 

 15, focused higher (the upper surface in focus); 16, focused lower (the contour in focus). 

 17, 18. — Sterroid with very stout, terminally densely spinet! rays of var. micraster; magnified 300; phot. 

 Zeiss, apochr. 4, compens. oc. 6: 

 17, focused higher (the upper surface in focus) ; 18, focused lower (the contour in focus). 

 19-24. — Small strongylosphaerasters and groups of such from centrifugal spicule-preparations; magni- 

 fied 1800; u. V. phot. Zeiss, q. monochr. 1.7, q. oc. 10: 

 19, 20, 22, 24, of var. intermedia; 

 21, 23, of var. micraster. 



25-27. — Rays of oxyasters of var. micraster; magnified 1800; u. v. phot. Zeiss, q. monochr. 1.7, q. oc. 10. 



28. — A monactine aster of var. micraster; magnified 1800; u. v. phot. Zeiss, q. monochr. 1.7, q. oc. 10. 



29, 30. — Rays of oxyasters of var. micraster; magnified 1800; u. v. phot. Zeiss, q. monochr. 1.7, q. oc. 10. 



31. — Group of sterrasters from a spicule-preparation of var. intermedia; magnified 200; phot. Zeiss, 



apochr. 8, compens. oc. 6. 



32. - — Group of sterrasters from a spicule-preparation of var. micraster; magnified 200; phot. Zeiss, 



apochr. 8, compens. oc. 6. 



