ON SOME NEW AND RARE BRITISH COLLEMBOLA 499 



east coast of Arran and the Greater Cumbrae. In England 

 X. humicola has been recently found on the east coast at 

 Saltburn, Yorkshire; Whitley Bay, Northumberland; and 

 Roker, county Durham. 



I have not yet found the closely allied X. maritiina of 

 TuUberg-, whicii has been recorded from Ireland by Prof. 

 Carpenter, and by Mr. Evans from Scotland. 



Xenylla brevicauda Tullb. 



X. brevicauda has only recently been recorded by Carpenter 

 from Ireland, and is another interesting addition to our fauna. 

 On the occasion of the Vale of Dervvent Naturalists' Field 

 Club's visit to the Chopwell woods on May nth, 1907, 1 found 

 several examples of this little bluish-grey insect lurking under 

 the damp bark of some felled ash trees. These are the first 

 English records for both X. humicola and X. iixvicauda. 



Distribution. — Sweden, Finland, Ireland, and England. 



Genus FRIESEA Dalle Torre (7>7^//« Tullberg) 



Friesea mirabilis (Tullb.). 



This is apparently a rare European species, and it gives me 

 much pleasure to be able to record it from the Northumber- 

 land and Durham area. Early in the spring of 1907 I found 

 several specimens under the loose bark of some small birch 

 and ash logs lying in a marshy spot at Lockhaugh, near 

 Rowlands Gill. This is the first English record. 



Genus ANURIDA Laboulb. 



Anurida Tullberg! Schott, 1892. 



Amirida Tullbergi Schott, Entomol. Tidsskrift, Stockholm, 

 p. 192, 1892 ; Kongl. Svenska Vetenskaps-Akad. Handl., 

 XXV., p. 91, pi. vii., figs. 17-18, Stockholm, 1893. 



In the spring of 1907 I discovered this interesting little 

 creature living in large numbers amongst the shingle by the 

 Derwent side at Winlaton Mill, and under submerged stones. 



