492 Hector F. E. Jungersen. 



original specimens but, besides, a still larger — in fact an extremely 

 large — material from the greater part of the distributional area of 

 the northern representatives of the genus Eiinephthya, I feel convinced 

 that a further reduction is needed, as no tangible differences are to 

 be found which might really separate and characterize several forms 

 still maintained by Kükenthal. For all these forms which in- 

 sensibly pass into each other by every structural degree I have 

 kept the oldest specific name, given by Michael Sars in 1860. 



Most of the specimens in hand from Eastern Greenland are 

 rather small and contracted, showing the shape of "forma clauata", 

 while some are more or less ^^Gersemia'' -like; only two large spec- 

 imens, with most of the polyps fully protruded, belong to the ^'forma 

 friiticosa". 



The Danmark Expedition has provided this species from the 

 same locality as the preceding: St. 95, the sound between "Renskær" 

 and "Maat ten", 25 fthms.; ^^/7 1908 (three small specimens, more 

 or less "Gersemia"-like). 



Ryder's Expedition: Entrance to Scoresby Sound (probably 

 at Cape Hooker: 70°28' N., 23° W.), 10—65 fathoms, ^/s 1891 (three 

 small colonies, taken with swabbers; "■forma clavata'\ polyps mostly 

 expanded). 



Carlsbergfond Expedition (S. Jensen): Hurry Inlet (70°50' 

 N.), 50 fthms., ^Vs 1900 (three loose colonies, of which two large, 

 measuring in height 55 and 65 mm, of the ''^ forma fruiicosa'' ; 15 

 mostly small — some simply single polyps — of "forma clauata", 

 fixed on shells of Area glacialis). 



This species probably is circumpolar but by no means only arctic, 

 its distribution comprising also the boreal part of the Atlantic, per- 

 haps reaching as far south as the Azores (Studer, "l'Hirondelle" 

 1887), and on the American side to off" Delaware Bay (if the identitj'^ 

 with Gersemia longiflora Verrill proves to be correct). From the 

 greater part of the arctic North-American seas it is not known hitherto, 

 nor from the Siberian Polar Sea, east of the estuary of the Lena. 

 Otherwise it is known from the coasts and fjords of Western Green- 

 land — from Jakobshavn to Bredefjord — ; from Baffin Bay and 

 Davis Strait; from the northern coast and fjords of Jones Sound; 

 from Danmark Strait; round Iceland, Jan Mayen, Spitsbergen, Beeren 

 Eiland, Franz Joseph Land, Barents-Sea, Murman Sea, Kara-Sea and 

 along the Siberian coast to the mouth of the Lena; further in the 

 Kola-fjord, the Norwegian fjords from Varanger- to Stavanger-fjord 

 and in the North Atlantic between Norway, the Færoes and Iceland 

 as well as farther north in the open sea of the arctic regions. Thus 

 it is by no means littoral, its bathymetrical distribution ranging 



