PLATE XIV. 



Fig. 1. — SphamilijluK rapitatiin, vcitiwU suction (X 2;')). 



Fios. 2-4. — Buds of the Siime ( X 1;')). 



Fig. 5. — PoUjmaxiia invafjiiata, specimen cm in half ; uat. size, p. 15. 



Fig. G. — A'eriical section (_x 2o). 



Fig. 7. — Flagellated chambers (diplodal) (x HtiO- 



Fig. X.— Stellate group of tyles iu choanosoine (x 100) ; «a, separate tyles of stellate groujw (x 100) 



Fig. '.).— Straight style (x 10(i). 



Fig. 1(1. — Curved style (x 100); 1 oa, nari'ower head of another spicule ( X 100). 



Fig. 1 1 .— Slrongyle (x 100). 



Fig. li.— Long slender tyle (x lOO). 



Figs. 13, 1 L -Cortical tyles ( x 100). 



Fig. 15.— Choanosornal tyles (x loo) ; 1,'ni, the same (x IGO). 



