3()Q Th. Mortensen. 



The polar water of the East Greenland Stream cannot then have 

 had the powerful influence along the West Coast it has now, 

 which is proved by the occurrence in the littoral region of Zirphœa 

 crispata at that time. What influence this milder period has had 

 otherwise on the distribution of the Greenland Echinoderms is not 

 clear; it does not appear that any of the problems afforded by this 

 distribution are solved by its means. 



List of the Stations of the Danmark Expedition, where 

 Echinoderms have been collected. 



Station 9. 76°8'N. 10°49'W. 300m. (^.s06). 

 Ophiacantlia bidentata. 

 15. 76"35'N. 18'^26'W. 150m. ('^/,s06). 

 Ophiacantha bidentata. 



— 16. 76°47'N. 18=45'W. ca. 10 m. Danmarks Havn. ^'/s 06. 



Stichaster albiilus, Myriotrochus Rinkii. 



— 18. Danmarks Havn. ca. 8 m. ^^'s 06. 



Myriotrochus Rinkii. 



— 20. Danmarks Havn. 10— 20 m. ^-'/o 06. 



Ophioglypha robnsta, Ophiocten sericeum, Strongylocentro- 

 tus drøbachiensis, 

 21. Danmarks Havn. 6- 10 m. =^^"!. 06. 



Stichaster albulus, Ophioglypha robusta, Ophiocten seri- 

 ceum. 



— 25. Danmarks Havn. 20 m. ^'/;'06. 



Stichaster albulus, Ophioglypha robusta, Ophiocten seri- 

 ceum. 



— 27. Danmarks Havn. 20-30 m. -'/нОб. 



Stichaster albulus, Ophioglypha robusta. 



— 32. Danmarks Havn. 12 m. "/.o06. 



Ophiocten sericeum. 



— 36. Danmarks Havn. 10— 15 m. ^-'/lo 06. 



Solaster papposus, Stichaster albulus. 



— 43. Danmarks Havn. 6 — 10 m. ^/т 07. 



Myriotrochus Rinkii. 



— 45. Danmarks Havn. 6—12 m. "/? 07. 



Myriotrochus Rinkii. 



