6 ON NEW AND RARE BRITISH 8HIDERS. 



remained which I was quito unable to refer satisfactorily to either 

 of these species, nor yet could I conscientiously characterise 

 another species among them. More recently, Mr. Emerton, 

 after careful examination of a much more extensive series of 

 this group from the sa-uo locality, has come to the conclusion 

 that it is impossible to separate them into satisfactory species, 

 owing to the innumerable orrados of variation in form and structure 

 existing atnon^ theui. H ) h-is consequently included the \vhole 

 lot under one specific name, referring them all to Nerieue longi- 

 palpis, Sund. (Vide "New England Tiieridiidce." by J. H. 

 Emerton, Trans Conn : Acad. vi., p. 59,1882.) Evidently the 

 formation of, probably, several species is actively going on in this 

 group in North America. I believe the same result is in 

 preparation in this group here in Europe, and indeed in Eng- 

 land, though perhaps not so rapidly. What the eventual forms 

 may be, which will at length become tolerably stable, it is impos- 

 sible to conjecture. Another instance of this p/ocoss being at 

 work is I conceive furnished in the cases of Linypliia errans, Bl., 

 L.oblonga, Cambr., and L.lnccrtt id. 



NERIENE AFFINIS, BL (Cambr,, Spid. Dors., p. 114). 



Adfllts of both sexes of this rare and distinct spider have been 

 lately found in a marshy spot near Hoddesdon, in spring and 

 summer, by Mr. F. M. Campbell. 



NERIEXE CORNIGERA, Bl. (Cambr., Spid. Dors., p. 430). 



An adult male was found by my son, Arthur Wallace, among 

 grabs near the iron fence of the lawn at Bloxworth Rectory, on 

 the 12th of March, 1883. This capture is interesting as being 

 in a locality so different from that in which the only other known 

 (British) examples (four in number) have occurred. One of 

 these, the type specimen, was found on a mountain in North 

 Wales j the other three in a swamp near Bloxworth. 



