NOTES 95 



until 187 1 that the Cuvierian specific title was restored by 

 Budde-Lund. 1 



It is known to have a wide distribution on the European 

 Continent, having been recorded from France, Germany, Sweden, 

 Denmark, and Turkey. 



It was first recorded for the British Isles by the Rev. T. R. R. 

 Stebbing, who, in 1873, described it under the name of Zia 

 saundersii, from the neighbourhood of Copthorne Common, 

 Surrey.' 2 Nothing more was heard of the species until 1906, 

 when Webb and Sillem 3 announced its discovery at Warley, in 

 Essex, in the spring of 1902. 



In 19 10 I obtained two examples from beneath the moss on 

 a pot of orchids in a conservatory at Bowdon, Cheshire, and 

 in the following year I collected it beneath moss overgrowing 

 stones on the banks of the river Bollin, between Bowdon and 

 Ashley Mills. Finally, in 1912, I obtained two further specimens 

 at Henley-in-Arden, Warwickshire. 4 



In spite of careful and persistent search by myself and fellow 

 workers, it has not since been recorded. 



There is the possibility that this species has been mistaken 

 for Philoscia muscorum, Scopoli, adults of both species averaging 

 9 mm. in length. It can, however, be readily separated from 

 P. muscorum by the multiarticulated flagellum of the antennae, 

 the large oval eyes, which extend down the sides of the cephalon, 

 the more fragile and longer uropoda, and the narrower and more 

 elongated form of the body generally. 



There is no reason to suppose that this species is restricted 

 to the above-mentioned localities, and there seems to be so many 

 likely localities in Scotland, that I am anxious to direct the 

 attention of Scottish naturalists with a view to a diligent search 

 being made for it during 191 7. 



The most likely habitat is beneath moss and herbage near 

 lakes and streams, or on marshy ground. 



I will gladly identify and return (if desired) any specimens 

 forwarded to me. Walter E. Collinge, The University, 

 St Andrews. 



Unio margaritifer in Easterness. This species should 

 have been included in my paper on "Easterness" {Scot. Nat., 



1 Naiurhist. Tidssk., 1871, vol. vii., p. 226. 



2 Ann. and Mag. Nat. Hist., 1873 (s. 4), vol. xi., p. 286. 



3 The British Wood/ice, p. 21. 



4 Jburn. Econ. Bio/., 1913, vol. viii., p. 8. 



