GEODIA VARIOSPICULOSA. 71 



DIMENSIONS OF THE SPICULES OF GEODIA VARIOSPICULOSA THIELE {continued). 





Var. 

 typica 



Var. 



clavigera 



Var. 

 intermedia 



Var. 

 micraster 



Choanosomal 

 oxyasters 



number of rays 



3-6* 





1-8 



1-11 



dimensions of 

 oxyasters with 

 1-4 rays 



total diameter 

 /' 



156-164* 





27-180 



40-132 



rays 



length ji 



84*-135 





14-90 



25-72 



basal 

 thick- 

 ness /( 



8* 





1-8 



1.5-8 



dimensions of 

 oxyasters with 

 5-6 rays 



total diameter 

 /' 



40-104* 





20-140 



21-105 



rays 



length ji 



52-56* 





10-78 



11-58 



basal 

 thick- 

 ness /( 







1-7 



1.5-7 



dimensions of 

 oxyasters with 

 7-8 rays 



total diameter 

 /' 







25-37 



17-31 



rays 



length /( 







13-21 



9-16 



basal 

 thick- 

 ness n 







1-3 



1-3 



Oxysphaeras- 

 ters 



number of rays 







14-22 



18-22 



total diameter /( 



16*-30 





17-22 



14-19 



diameter of centrum /( 







5-6 



5-6 



rays 



length /( 







5-8 



4-7 



thickness /( 







1.5-2 



1-2 



Dermal stron- 

 gylosphaer- 

 aster 



number of rays 







12-19 



10-18 



total diameter /t 



6-8 





5-7 



5-8 



diameter of centrum ji 







2-4 



2-4 



rays 



length fi 







o f; o 



U . b—Z . 0 



thickness /( 







0. 5-1.6 



0.6-2 



Sterrasters 



length fi 



80-115 



100 



109-125 



120-133 



breadth ji 



65-95 



80 



90-100 



100-116 



thickness /( 







70-75 



82-90 



' The dimensions marked * are taken from Thiele's figures. 



