154 CLASS III.— ORDER I. 



the interior full of small lacinules ; surface many- 

 lobed, divided, and laciniated; texture fibrous and 

 reticuated; slightly incrusted. 



FILAMENTOUS. 



\0. Svo^GiA Jilamentosa. Orbicular; the surface co- 

 vered with upright lobes, separated above and united 

 below by lateral transverse filaments. 



Seas of New Holland ; King's Island. 



HONEY-COMBED. 



11. Spongta favosa. Masses oval, or oblong, and 

 convex ; surface covered with cells like a honey- 

 comb, subangular and unequal, of which the sides are 

 nearly membranous. 



Australasia; King's Island. 



CELLULAR. 



12. Spongia cellulosa. Masses proliferous or 

 lobed ; surface covered with honey-combed unequal 

 cells, whose sides are thick and porous. 



Australasia ; King's Island. 



PARTITIONED. 



13. Spongia septosa. Fibres completely incrusted, 

 forming a sort of net-work, the layers of which irre- 

 gularly cross each other and form large and unequal 

 cells or holes. 



Southern seas. 



PIERCED. 



14. Spongia fenestrata. Simple and incrusting. 



