15D 



THE DEPTHS OF THE SE4. 



[CHAP. iv. 



in sand patches, Ophioglypha sarsii, LTJTKEN. The 

 most abundant asterid was Aster opect en tenuispi- 

 nus, always a marked object from its bright red 

 colour with here and there an example of Archaster 

 andromeda and Pteraster militaris. Every haul 

 brought up several specimens of the so-called large 



Fio. 25. Archaster vtxillifer, WYVILLE THOMSON. One-third the natural size. (No. 76) 



form of Echinus norvegicus, here of a pale colour, 

 somewhat conical, and looking suspiciously like 

 small forms of E. flemingii. 



Along with one or two specimens of A r chaster 

 andromeda, we took at Station 76 an exceedingly 

 beautiful Archaster (Pig. 25), certainly by far the 

 finest species yet dredged in the Northern Seas. 



The arms are flattened, somewhat square in section 



