PLATE L 



Fig. I. Mia-oxina bejiedent (Topseni). x J. 



Fig. 2. Haliclona bilamellata, sp.n. A macerated specimen, showing the 



fibrous appearance imparted to the skeleton when the spicules 



are large, x f . 

 Fig. 3. Dasychalina validissima (Thiele). Portion of a sub-flabellate 



specimen, x f . 

 Fig. 4. Dasychalina validissima (Thiele). A massive specimen, x §. 

 Fig. 5. Dasychalina validissima (Thiele). A massive specimen, x |. 

 Fig. 6. Dasychalina validissima (Thiele). A flabellate specimen, x |. 

 Fig. 7. Dasychalina validissima (Thiele). A flabellate specimen, x |. 



