PLATE 22. 



Holascella taraxacum Lendenfeld. 

 Figures 1-41. 



1-4. — Superficial (hypodermal, hypogastral) hexactines; magnified 50; phot. Zeiss, planar 20 mm., 

 compens. oc. 6. 



5-11. — Large choanosomal hexactines, pentactines, and tetractines; magnified 7.5; phot. Zeiss, planar 

 50 mm. 



12-17. — The outer protruding ray of superficial (hypodermal, hypogastral) hexactines; magnified 200; 



phot. Zeiss, apochr. 8, compens. oc. 6. 

 18, 19. — The distal part of a ray of a microhexactine; magnified 2000; u. v. phot. Zeiss, q. monochr. 



1.7, q. oc. 10: 

 18, focussed higher; 19, focussed lower. 

 20-25. — Micro-hexactines and -pentactines; magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6. 



26. — The lower, di.stal end of an anchoring spicule; magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6. 



27, 28. — Parts of groups of onychhexasters in spicule-preparations; magnified 600; phot. Zeiss, H. I. 



apochr. 2, compens. oc. 6. 

 29-35. — The tyles and adjacent parts of centrotyle rhabds; magnified 200; phot. Zeiss, apochr. 8 

 compens. oc. 6. 



36. — Portion of a ray of a large choanosomal hexactine; magnified 200; phot. Zeiss, apochr. 8, compens. 



oc. 6. 



37. — The lower, distal end of an anchoring spicule; magnified 100; phot. Zeiss, apochr. 16, compens. 



oc. 6. 



38-41. — Ends of rhabds: magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6. 



