w 



ft 



1900] Lambe — Catalogue Marine Sponges. 163 



This species has a wide geographical range. According to Topsent 

 ' (38, p. 135) it is found, outside of Canadian waters, in the Arctic 

 Ocean (Kara Sea, White Sea, Spitzbergen, Greenland, &c.); in the 

 North Atlantic (coasts of Norway, Belgium, British Isles, France, 

 Spain); in the Mediterranean (coast of France, Naples, Adriatic); 

 Pacific Ocean (Amboina Island, Japan). 



61. POi..YMASTiA ROBUSTA, Bowerbank. i860. 

 DistribuHo7i—Gu\i of St. Lawrence (18) ; off the coast of Nova Scotia 



(24); northeast coast of United States (Verrill, 33). 

 Foreign distribution— Brxilsh Isles (Bowerbank, Norman, Hanitsch); 

 North Sea, Shetland Islands (Norman) ; entrance to the Baltic 

 (Levinsen); French coast of the English Channel and of the Atlantic 

 (Topsent). 



62. Polymastia laganoides, Lambe. 1894. 



Described in Transactions, Royal Society of Canada, vol. XI, p. 129, 

 pi. iv, figs. 5, 5a — c ; type in the U. S. National Museum at Washing- 

 ton, D.C.; part of the type specimen in the museum of the Geological 

 Survey of Canada. 



Type locality — Behring Island, Behring Sea. 



63. Trichostemma hemisph^ricum, M. Sars. 1872. 

 Distribution— Gu\{ of St. Lawrence (Whiteaves, 37) 18 ; northeast coast 



of the United States (Verrill, 33). 

 Foreign distribution— Lofoten, Norway (Sars); Arctic Ocean, off the coast 

 of Norway (Vosmaer). 



64. Tentorium semisuberites, Schmidt. (Sp.) 1870. (26) 



Distribution -GuM: of St. Lawrence (Whiteaves, 37); off Nova Scotia 

 (Challenger) ; Baffin Bay, Omenak Bay, west and east coast of 

 Greenland (Fristedt); Davis Strait and East Greenland (Lambe, 2l); 

 Greenland (Schmidt); northeast coast of United States (Verrill, 33). 



Foreign distribntion—Off the Shetland Islands (Wyville Thompson); 

 Arctic Ocean off the coast of Norway (Vosmaer); Inaccessible Island, 

 South Atlantic Ocean (Challenger). 



65. Stylocordyla borealis. Lov6n. (Sp.) 1868. (22) 

 Distribution— GuM of St. Lawrence (Whiteaves, 37); south of Halifax, 



Nova Scotia (Challenger); northeast coast of the United States 

 (Verrill, 33). 

 Foreign distribution — North Sea and coast of Finmark (Loven); off the 

 coast of Finmark (Vosmaer); Lofoten, Norway (Sars); between the 

 north of Scotland and the Faroe Islands (Wyville Thompson, Carter); 



