SOLASTERINA. 65 



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O. granulata. 



* * * * 



0. rosula. Fig. 95 ; n. s. 0. minuta. 



Sub-Family II. Euryalina. 



Astrophyton (Link) . Bays round, dividing from 

 the base, and repeatedly branching, so as to termi- 

 nate in very numerous fine filaments. 

 A. scutatum. Tig. 96 ; \. 



Family II. Asteriad^e. 



Body slightly conical, with rounded rays : 



4 ranges of suckers in each avenue . . TJrasterina. 



2 ranges of suckers in each avenue . . Solasterina. 

 Body distinctly conical, five-angled, with 



2 ranges of suckers Goniasterina. 



Body flat, with short rays ; 2 ranges of 



suckers Asteriana. 



Sub-Family I. TJrasterina. 



Uraster (Agass.). Rays few, spinous; avenues 

 bordered by three sets of spines. 



U. glacialis. U. violacea. 



rubens. Fig. 97 ; T L. hispida. 



Sub-Family II. Solasterina. 



Cribella (Agass.). Rays few, covered (as is 

 the disk) with spine-bearing warts ; intermediate 

 spaces porous; avenues bordered by two sets of 

 spines. 



C. oculata. Fig. 98 ; i. C. rosea. 



F 



