178 CLASS III.— ORDER I. 



branches stiff, upright, divided, cylindrical, pointed, 

 subangular, and hairy ; spiny on their surface. 

 Western coast of France. 



PRICKLY. 



122. Spongia muricata. Stem long and branching ; 

 branches loose, few, simple, tough, tail-shaped, and 

 stuck with linear obtuse projections, which are spa- 

 tulated and very close. 



Western coast of Africa. 



VULPINE. 



123. Spongia vulpina. Upright, branching, and in- 

 crusted ; branches tail-shaped, thickly covered with 

 small projections, which are divided, frequently coa- 

 lescing in trellis form, and irregularly porous. 



Southern seas. 



SPIKED. 



124. Spongia spiculifera. Whitish mass, deeply 

 cut in upright lobes, which are proliferous, and re- 

 semble ears of corn ; porous, osculated, and stuck with 

 small tubercles. 



Seas of Australasia. 



thistle-shaped. 

 126. Spongia carlino'ides. Resembling a small 

 thorny bush, in a fan-like tuft, whose ramifications 

 resemble the leaves of the Carline thistle ; surface 

 incrusted. 



amaranthine. 

 126. Spongia amaratithina. Upright, branching, 



