158 CLASS III.— ORDER I. 



SECTION ir. 



Masses subpediculated or contracted at their base, simple 



or lobed, 



ANGULAR. 



31. Spongia angulosa. Masses upright, nearly 

 turbinated, with longitudinal angles, compressed and 

 irregular at the sides ; fibres very fine and reticu- 

 lated ; holes orbicular and distinct, fi)rmed on the flat- 

 tened or imperfect projection of the angles. 



Var. B. Shapeless, and almost lobed. 



Australasia ; King's Island. 



MANY-LOBED. 



32. Spongia pluriloba. Upright, contracted at 

 the base, compressed, deeply and irregularly lobed ; 

 lobes flattened, and obtuse as if truncated at their 

 summit ; oscules scattered, distant, and sometimes 

 rather projecting. 



Seas of Australasia. 



CHmKY. 



33. Spongia rimosa. Fibrous, but not incrusted ; 

 surface marked with irregular and longitudinal cre- 

 vices sometimes oblique ; oscules dispersed. 



Var. A. In the form of a column. 



Var. B. In the form of a club, rather compressed. 



Australasian seas. 



