1901.] NATURAL SCIENCES OF PHILADELPHIA. 153 







Ellesmere Land: Cape Faraday (Ohlin); Grinnell Land: 82 

 24'^N. L. (Miers); North Greenland : Cape York (Hansen). 



26. Gammaracanthus loricatus (Sabine). 



Gammarus loricatus Sabine, in Parry's Voy. Append., 1821, p. 231, PI. 

 1, fig. 7 ; Gammaracanthus loricatus Bate, Catal. Amphip. Brit. 

 Mus., 1862, p. 202, PL 36, fig. 2. 



Station 4. Payer Harbor, mouth of fresh- water stream (1). 



Our individual has been taken at the mouth of a small stream in 

 perfectly fresh water. This fact is the more interesting, since we 

 have in fresh-waler lakes of Sweden, Norway, Finland and 

 .Russia a slightly diffarent form (var. lacustris Sars = relictus Sars, 

 1895, p. 494, PI, 174). Our specimen represents the typical 

 form. 



Distribution. — Kara Sea, Spitzbergen, Greenland (rare), Grin- 

 nell Land, Ellesmere Land, Polar islands of North America, Point 

 Barrow; 0-10 fathoms. 



Grinnell Land: Floeberg Beach (Miers); Ellesmere Land: 

 Cape Faraday (Ohlin). 



27. Gammarus locusta (Linne). f 

 Sars, I c, 1895, p. 499, PL 1, 176, fig. 1. 



Station 3. Godhavu, Disco Island, beach (34). 



Station 14. Payer Harbor, fresh water (24). 



Station 44. Barden Bay, beach (3). 



Station 55. Foulke Fjord, beach (22). 



Distribution. — Norway and southward to the Mediterranean 

 Sea, Labrador, Ellesmere Land, Grinnell Land, North, West and 

 East Greenland, Iceland, Spitzbergen, Barents Sea, Franz Joseph 

 Land, Kara Sea, Siberian Polar Sea (eastern part), Point Bar- 

 row; 0-5 fathoms, rarely in deeper water; sometimes pelagic. 



Ellesmere Land: Cape Faraday (Ohlin); Grinnell Land: 

 Floeberg Beach (Miers) ; North Greenland: Port Foulke (Stimp- 

 son), McCormick Bay (Ives). 



28. Melita dentata (Kroeyer)'. 



Sars, I. c, 1895, p. 513, PL 181, fig. 1. 



Station 52. Robertson Bay, 5-15 fathoms (2). 



Distribution. — England, Kattegat, Norway, New England coast, 

 Labrador, Polar islands of North America, West Greenland 

 (northward to Disco Island), Iceland, Spitzbergen, Novaja Semlja, 

 White Sea, Puget Sound (north Pacific) ; 2-160 fathoms. 



