4 p Canadian Arctic Expedition, 191S-1918 



and north of the New Siberian islands (Schimkewitsch, 1907a) add it to the 

 Siberian arctic area. The present record, from what may be called the American 

 Arctic area^ completes the circle, making this a truly circumpolar species. 



2. Nymphon longitarse Kroyer. 

 One specimen, adult. 

 The kndwn distribution of N. longitarse is even more extensive than that of 

 the preceding species. Norman (1908) has collected records from: 



a. British area. 



b. Scandinavian — Norway, South and West. 



c. East Arctic. 



d. High Arctic. 



e. West Greenland^ 



f. North-east American to lat. 35° N. (Cape Hatteras). 



The American records for this species range from the region of Smith sound 

 (Ortmann, 1901), Baffin bay and Davis Strait (Meinert, 1899; Vanhoffen, 1907), 

 to extreme south Greenland (Stephensen, 1913, 1916), and according to Wilson 

 (1878, 1880) it extends as far south along the east coast of North America as 

 Massachusetts bay. The present record form a link to the westward with 

 that from point Barrow (Murdoch, 1885). Schimkewitsch (1907 b) reported it 

 from the Okhotsk sea,^ but it does not appear to have been taken by the Rus- 

 sian Polar Expedition, though its otherwise circumpolar distribution would 

 lead to the presumption that it occurs also in the Siberian Arctic. 



3. Chsetonymphon hirtipes (Bell). 

 One adult male; one adult female; one immature. 



The present record extends the range of this well-known species to the 

 westward. Norman (1908) hsts it from: 



a. British Area. 



b. Scandinavian. 



c. East Arctic. 



d. High Arctic. 



e. Faroe Channel. 



f. West Arctic. 



g. West Greenland." 



h. North-East American 



It has been found widely distributed on the East and West coast of Green- 

 land (see Stephensen, 1913 and 1916, for detailed localities) and according to 

 Wilson (1878, 1880), like Nymphon longitarse extends south to Massachusetts 

 bay on the American coast. Carpenter (1898) has said of this form: "C. 

 hirtipes is one of the most familiar Arctic pycnogons; and from the numerous 

 localities from which it has been dredged, it would appear to have a complete 

 circumpolar range." It should be noted, however, that in this last respect it 

 does npt yet equal either of the foregoing species as it does not appear up to this 

 time to have been found between Dolphin and Union strait and the Kara sea. 



The Canadian Arctic Expedition specimens had a number of Foraminifera 

 attached to them, identified by Dr. J. A. Cushman of Boston as Truncatulina 

 lobatula (Walker and Jacob). See Report of Canad. Arct. Exped., Vol. IX, 

 Part M, p. 9m. 



'This term is suggested, rather than Canadian Arctic, to include the whole Arctic area adjacent to the 

 North American continent from Baffin bay to Bering strait. Should there be reason for doing so it can be 

 subdivided into the Canadian Arctic and Alaskan Arctic, the division point being practically Mackenzie 

 bay, at the mouth of the Mackenzie river. These two sub-areas differ strikingly in that one is composed 

 of the straits and sounds among the islands of the Arctic Archipelago, while the other is an open coast. 



^See also footnote 2, p. 3r. 



'Schimkewitsch (1913) has later described a new variety {N. longitarse var. minus) from this region, 

 which he says is only about half the size of the European form. 



