10 AUGUSTA ÄRNBÄCK-CHRISTIE-LINDE, NORTHERN AND ARCTIC INVERTEBRATES. 



Cattegat: Torrboskär — Skagen, 22 fms, clay, 1 sp (Gunhild Exp. 1878, Théel 

 & Trybom). 



Norway: Hardanger, Samlenfjord, 280 fms, rocks, 7 sps (1880 Bovallius). 



Kola Peninsula: Sandeberg's Exp. August 1877: Ladigino, 70 fms, stony bottom, 

 1 sp; Semiostrowa, 50—55 fms, sand with stones and shells, 6 sps; Lumbowski, 

 15 — 16 fms, stones and shells, 1 sp; D:o 25 fms, 1 sp; Kola Fjord, 95 — 100 fms, 

 clay and shells, 2 sps. 



West Greenland: Proven, 16 — 40 fms, rocks, 1 sp (Torell); Illordlek, 5 sps 

 (August 18, 1870, Öberg). East Greenland: S. E. of Clavering Island, 74° 10' N— 20° 

 8' W, 25—40 m, mud with shells and stones, 1 sp (July 17, 1899, Greenl. Exp.). 



West Spitzbergen: Spb. Exp. 1861 (I. A. Malmgren): Danes Gat, 20 fms, sand 

 and stones, 6 sps; Hackluyts Headland, 12 — 30 fms, stones and algae, 4 sps together 

 with S. rustica (May 1861); Amsterdam Island, 20 fms, clay, 1 sp; D:o 25 fms, 

 sand, 1 sp (May 23, 1861); Treurenburg Bay, 20 fms, sand with clay, 1 sp ; Waigat 

 Islands, 30 fms, rocks, D:o 60—80 fms, clay, many sps (August 1861). — Horn 

 Sound, 40—100 fms, 1 sp. — Ice Fjord: Green Harbour, 40 — 45 fms, 1 sp (1868); 

 Advent Bay, 10-15 fms, clay, 2 sps (August 10, 1868). — Spb. Exp. 1872—1873: 

 Norway Islands, 15 — 25 fms, clay, 1 sp, D:o 10 fms, 1 sp (August 1872); Mossel 

 Bay, 8 — 12 fms, open water, algae, Lithothamnion, 2 sps (December 3, 1873). 



Arctic Sea of Siberia: Vega Exp. 1878-1880: 76° 8' N-92° 20' E, 40 fms, 

 brown clay with stones, 1 sp (1878); Taimyr Sound, Actinia Bay, the north coast, 

 5 — 10 fms, stones with algae, 1 sp (August 16, 1878); New Siberian Islands: S. E. 

 of Ljachow Island, 8 fms, clay, 1 sp (August 31, 1878). 



(Jeneral Distribution. 



Styela loveni occurs off the coasts of the Danish Islands, where it has been 

 dredged abundantly in the sounds, in the western part of the Baltic Sea: at Born- 

 holm, off the coasts of Sleswig-Holstein, and northern Germany to Darsser Ort, it 

 has here been dredged in shallow water, 5—55 m (Traustedt 1880); Sweden, Gull- 

 marn (Carlsson 1918). It is common along the whole coast of Norway, in the 

 Norwegian fjords, to Sydvaranger on the north, depth 25 — 400 m (Kiaer 1893, 

 Bjerkan 1908). Ålder and Hancock report it from the Dogger Bank in the North 

 Sea, from the English coast, Shetland; it ocours off the Faroe Islands (Hartmeyer 

 1912). In the Arctic Ocean it is widely distributed, though its occurence is not 

 abundant (Hartmeyer 1903, Redikorzew 1906, 1908). It is also met with on the 

 east coast of North America, from Labrador, the Gulf of St. Lawrence, and the Banks 

 of Newfoundland to Massachusetts Bay, (Van Name 1912), and in Bering Sea, 

 350 fms (Ritter 1913). 



Remarks. 



As in Styela rustica two types are to be distinguished also in Styela loveni: a low, 

 dorso-ventrally compressed one, attached by the expanded ventral surface of the 

 test, and a tall, cylindrical one, attached by a narrow base. Between them there 



