1901.] NATURAL SCIENCES OF PHILADELPHIA. 179 



Distribution. — Arctic and Sub-Arctic, Circumpolar: Europeaa 

 and Arctic seas, Greenland, Franklin Pierce Bay (Nares Ex.). 

 Range in depth, 5 to 201 meters (Ludwig). 



17, Ophiacantha bidentata (Retzius). 



Asterias bkleiitata Retzius, Dissertatio, i). 33, 1305. 

 Ophiacantha spinulosa Miill. and Trosch., Syst. Aster-, p. 107, 1842. 

 Ophiacantha hidentata, Ljuugman. Oph. Viveut. of K. Akad., p. 652, 

 1871. 



Station 12. Foulke Fjord, 35 fathoms. 1 specitnen. 



Station 26. South of Cape Alexander, 2r fathoms. 2 speci- 

 mens. 



Station 27. Otf Cape Chalon, 35 fathoms. 4 specimens. 



Station 29. Olriks Bay, lower nari'ows, 7-25 fathoms. 2 speci- 

 mens. 



Station 39. Granville Bay, 30-40 fathoms, 23 specimens. 



The specimens vary in size from (3 to 15 mm. disk-diameter. 



Distribution. — Arctic and Sub- Arctic : Eastport, Me.; Grand 

 Manan, Newfoundland; Greenland (Nares Expedition). Discovery 

 and Franklin Pierce Bays and Cape Eraser — the most numerous 

 Ophiurian collected by that expedition. (Duncan and Sladen con- 

 sider the Ophiura fragilis of the Parry Expedition to be this 

 species) ; Penny's voyage — Assistance Bay, Ophiocoma echinulata ; 

 Iceland, Faroe Channel, coast of Norway from Lofoten Islands to 

 North Cape, Spitzbergen, Barents Sea, Kara Sea. Dredged by 

 "Albatross" at 1,606 fathoms (2,890 meters) off the coast of 

 North Carolina, and by the " Challenger" at 1,350 fathoms, lat. 

 40° 17' N., long. 66° 48' W. 



The reported finding by Pfeffer of this specis in Bering Strait 

 is considerd by Ludwig to be doubtful. 



CRINOIDEA. 



18. Antedon esohrichti (Muller). 



Alecto eschrichti Muller, Monatsbericbt. d. k. preuss. Akad. d. Wiss., 



Berlin, p. 183, 1841. 

 Antedon eschrichti. See Carpenter, in Challenger Report ZooL, Vol. 



XXVI, p. 138, for synonomy. 



Station 26. South of Cape Alexander, 27 fathouis. 1 specimen. 

 Station 27. Off Cape Chalon, 35 fathoms. 2 specimens. 

 Station 29. Olriks Bay, lower narrows, 7-25 fathoms. 1 speci- 

 men. 



Station 39. Granville Bay, 30-40 fathoms. 2 specimens. 



