60 LIST OF ECHINODERMATA. 



of limestone drawn from the depth of about 30 fathoms, and which 

 contained several specimens of the -^rca/wsca, I was fortunate to meet 

 with a single specimen of this recently added species to the British 

 Fauna. 



O. ROSULA. — Common Brittle Star, Frequent. 



ASTERIAD^.— URASTERIiE. 



Genus Uraster. 

 IT. RUBENS. — Common Cross Fish. Not very common. 

 U. viOLACEUs. — Violet Cross Fish. Frequent. 



SOLASTERIiE. 



Genus Cribella. 



C. ocuLATA. — Eyed Cribella. Not uncommon. 



Genus Solaster. 



S, Endeca. — Purple Sun Star, Frequent in deep water. 

 S. PAPPOSA. — Common Sun Star. Very common. 



GONIASTERI^. 



Genus Goniaster. 

 G. EQUESTRis. — Knotty Cushion Star. I had the good fortune to 

 add a beautiful specimen of this very rare species to my collection in 

 1842. It was obtained from deep water in Alemouth Bay, about 8 miles 

 to the South. It agrees both as to size and markings so exactly with 

 the specimen described by Mr Forbes, that it might well be taken for 

 the identical specimen. Both were taken on the coast of Northumber- 

 land. 



ASTERIiE. 



Genus Asterias. 



A. AURANTiACA. — The Butthom. This beautiful species is obtained 

 in our bay, on what the fishermen call soft ground. It is by no means 

 a very common species. 



Genus Luidia. 



L. FRAGiLissiMA. — Thc Lingthom. Rare in Embleton Bay; and 

 almost impossible to obtain a perfect specimen. 



