12 Proceedings of the Royal Irish Academy. 



recorded from Spitsbergen and Bear Island is given, in which the known 

 distribution of each through the different islands of the archipelago is 

 indicated, as well as its range in other Arctic districts, in Europe, and in 

 America. It is interesting to find that of the twenty-three Spitsbergen and 

 Bear Island species, fifteen inhabit Great Britain, while two — Achorutes 

 viatims and Arehisotoma Beselsi — are found far to the south in Antarctic or 

 sub-Antarctic regions. As regards local distribution in Spitsbergen itself, five 

 species of the ten collected by the Expedition come from Prince Charles 

 Foreland, the westernmost island of the group. Almost all previous records 

 of Spitsbergen Collembola are due to investigations on the large and often- 

 visited West Island. 



List of Oxfoed Univeesity Expedition's Collection. 

 PODUPJDAE. 



Achorutes Templeton. 



Hyfogastrura Borner. 

 Achorutes viaticus TuUberg. 

 This common and well-nigh cosmopolitan insect is abundant on 

 Spitsbergen, and occurs also on Bear Island. The Spitsbergen localities are 

 Advent Bay (many specimens on surface of pools in boggy tundra near 

 coast, 4th July, 1921), Klaas Billen Bay (a dozen on side of Mount Terrier at 

 2,800 feet, 29th July, 1921 ; two among moss on edge of salt marsh near 

 Bruce City, 13th August, 1921 ; many on surface of brackish tidal pool in 

 salt marsh, Bruce City, 13th August, 1921), and Prince Charles Foreland 

 (in enormous numbers among decaying seaweed on shingly shore, inner side 

 of Richard Lagoon, 9th July, 1921 ; one specimen in moss on scree-slope at 

 300 feet, mouth of G-len Mackenzie, and four shaken from plants on rocky 

 hill, 6th July, 1921). On Bear Island A. maticus occurred at Walrus Bay (a 

 single specimen, 15th June, 1921, and many on marshy area, 13th August, 

 1921) and on the south-western shore (six under stones near Elassia Lake, 

 17th April, 1921). 



A. viaticus has long been known as a member of the Spitsbergen and 

 Bear Island fauna (Schaffer, 1900, p. 243). It has a wide range on the 

 archipelago, being recorded by Skorikow (1900, pp. 203-4) from Amsterdam 

 Island, at the far north-western corner of the Western Island, from Whales 

 Point on Stans Foreland (Edge Island), and from Barents Island to the 

 south-east, as well as from King Karl Islands to the eastward. Its general 

 range extends over the Arctic regions, Europe, America southwards to 

 Tierra del Fuego (SchafPer, 1897), and on to the sub-Antarctic Macquarie 

 Island, south of New Zealand (Carpenter, 1909; Tillyard, 1920). 



