I''lO. tJ 



<.■•-">.. 



b 





EuplvcAeWa iispcrtiillinu. A. Section uf a lidgc iiml part >>t' wull :•, !.">. <t. iK-mial 

 layer; ?;, flagellated cliamhers; r. gashal nivity; </, iiMtiilh'sof s\v.)r<|-.sliii|*t! 

 spicules each ti|>pe<l with a floriconic. n. Ri-Kiihir six-rnycil spicule x I<m*. 

 c. Floiicomc spicule x 8(10. (After F. K. Schnizc.) 



r,. fiw i>. 2«. 



