12^2 ACCOUNT OF BRITISH SPONGES. 



Plate xiv. fig. 2. Ditto, — shewing the fibres magnified, which 

 are more reticulated near the base than at 

 the extremity, 

 fig. 3. Spongia fruticosa. 



fig. 4, Ditto, — the fibres magnified in different points 

 of view. 



Plate XV. fig- 1. Spongia scypha. 



fig. 2, 3. Spongia limbata, — nat. size, and the pores 

 magnified. 



Plate xvi. fig. 1,2. Spongia ananas, — nat. size, and magnified. 



fig. 3. Ditto, tomentose var. — on Cellaria Bcruposa, 



magnified, 

 fig. 4. Spongia laevigata. 



