EXPLANATION OF PLATE XIV. 



Fi . I. — Spongilla reticulata^ (?) sp. nov. (from a dried specimen) 



nat. size. 

 Fig. la. — ,, ,, ,^ ,, gemmule spicules, highly 



magnified. 

 Fig. 2. — ,, alha, Carter^ gemmule spicules (both from the 



same specimen) at the same magnification 

 Fig. 3. — ,, crassior, sp. nov., portion of the skeleton near 



the external surface, magnified (^= external 



surface). 

 Fig. 4. — ,, crassissima, Annandale, ditto. 



