Plate 43. 



Fig. 1. Theonella swiiihoei, var. verrucosa, From the side. X%. 



2. Theonella invafjiuata. Sponge bisected, showing cloaca with apical 



aperture and two lateral diverticula which also open on the 

 surface. X 1. 



3. Jereopsis fruticosa. Sponge mass from the side. Xf. 



4. Leiodcrmatittni pfeifferae (Carter). Vase-shaped specimen. X£. 



5. Discodermia emarginata, var. lamellaris. Showing the concave (oscu- 



lar) face of the lamella which arises from an amorphous base. XI. 



6. Costifer vasiformis. Vase-shaped sponge, from the side. X?. 



7. Aciculites ciliata. The cup-shaped sponge has been bisected. From the 



cut surface. X 1. 



8. Leiodermatium pfefferae (Carter), lamellate specimen. X£. 



513 



