PLATE 19. 



Geodia Tariospiculosa Thiele. 



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

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



1^ 2. An umbilical part of the surface of a normal sterraster of \ar. micrasler; 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 aiiatriaene of var. micraster; magnified 750; phot. Zeiss, hom. inim. 



apochr. 2, compens. oc. 6. 

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

 6. — Minute dermal anamonaene of var. 7nuraster; magnified 3(K); phot. Zeiss, apochr. 4, compens. oc. 6. 

 7^ fj. — 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. Zei.ss, 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, focased higher (the upper surface in focus); 16, focused lower (the contour in focus). 

 17, 18. — Sterroid with very stout, terminally densely spined 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. 



