1901.] NATURAL SCIENCES OF PIIILADELnirA. 159 



c". — Segments of pereion dorsally with one median, spine-like 

 tubercle. All segments with t.vo angulations on each side, 



J. laciniata (Sars). 



West coast of Norway. 



<l'. — Head with two lateral angulations, J. trlangnlata (Rich. ).'^ 



California, 

 d". — Head with one lateral angulation (e). 



e'. — Rostrum well developed, long, J. libbeyi. 



e". — Rostrum represented only by a small median point, 



J. erostrata (Rich.).'* 

 Aleutian Islands. 



38. Munnopsis typica M. Sars.^ 



Harger, Rep. U. S. Fish Coinm. for 1878, part 6, 1880, p. 3.30, PL 2, fig. 

 11 ; Sars, Ace. Crust. Norway, Vol. 2, 1897, p. 133, Pis. 57, 58. 



Station 12. Foulke Fjord, 35 fathoms (2). 



Station 39. Granville Bay, 30-40 fathoms (18). 



Station 40. Granville Bay, 20-30 fathoms (2). 



Station 49. Olriks Bay, 15-20 fathoms (1). 



Distribution. — Norway, Shetland Islands, Bay of I'undy, Gulf 

 of St. Lawrence, Baffin Bay, Grinnell Land, North, West and 

 East Greenland, Iceland, Spitzbergen, Franz Josef Land, Novaja 

 Semlja, Kara Sea, Siberian Polar ^Seaj^(East Taimyr); 5-500 

 fathoms. 



Grinnell Land: Cape Napoleon, Cape I'Vazer (Miers) ; North 

 Greenland: Murchison Sound (Ohlin). 



The Bopyridce in the collection have not yet been identified. 



39. Diastylis rathkei (Kroeyer). 



Sars, Ace. Crust. Norway, Vol. 3, 1900, p. 44, Pis. 33, 34. 



Station 43. Barden Bay, 20-25 fathoms (3). 



Distribution. — Baltic Sea, Kattegat, Norway, England, Atlantic 

 coast of North America, Labrador, Baffin Bay, North and Wast 

 Greenland, Barents Sea, Franz Josef Land, Kara Sea, Siberian 

 Polar Sea (mouth of Jenesei, East Taimyr, Tchukchee coast) ; to 

 400 fathoms. 



North Greenland: Murchison .-Sound (Ohlin). 



40. Diastylis goodsiri (Bell). 

 Sars, l. c, 1900, p. 54, PI. 41. 



Station 18. Foulke Fjord, 15-20 fathoms (1). 



Distribution. — Polar islands of North America, Baffin Bay, 



^^ Ja7ithe triangulata Kichardson, Proc. U. S. Mas., Vol. 21, 1899, p. 857. 

 ^* Janthe erostrata Richardson, ibid., p. 858, fig. 30. 



