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A SUPPLEMENTARY LIST OF THE SPIDERS OF IRELAND. 

 By DENIS R. PACK-BERESFORD, B.A. 



Read January 25. Ordered for Publication January 27. Published March 25, 1909. 



Ten years having elapsed since Professor Carpenter published his " List of 

 the Spiders of Ireland,"^ it seems a suitable occasion to offer a supple- 

 mentary list of the fifty-eight species which have been taken in Ireland 

 since that list appeared. 



In addition to these native species, I am able to record an interesting 

 little tropical species from South America, which, like Hasarius Adansoni Sav. 

 of Professor Carpenter's list, inhabits the hot-houses at Glasnevin. It 

 has, of course, no claim to be considered an Irish spider ; but may, I think, 

 nevertheless, be included with this qualification. 



To this list I have added a second short one, to include a few species 

 which, for various reasons, do not figure any longer as Irish. 



There is actually only one species recorded in Professor Carpenter's list 

 which cannot claim, at present, I fear, to be considered an Irish spider; 

 while two others of his species are now recognized as being only forms of 

 commoner species, and, therefore, become synonyms. The inclusion of the 

 remaining seven species in my second list is really only a question of 

 nomenclature ; so that the net result is, that our Irish list now contains 

 280 species. 



I have also included a third list, in which I have given all the new 

 localities at present known for the rarer species already recorded. Of these, 

 sixty-four are species of which we have new provincial records, the rest being 

 very rare species, for which I am able to give a few new localities. 



Our knowledge of the local distribution of our Irish spiders is still much 

 too scanty to attempt a county record, so I have followed Professor Carpenter 

 in recording their distribution in the four provinces only. 



Most of the species now recorded as Irish for the first time are, of course, 

 to be found amongst the smaller and less common kinds, which, owing to 

 their size, or the obscurity of their habitats, have been hitherto overlooked. 



* Proc. R. I. Acad., ser. 3, vol. v., 128-210. 1898. 

 B.I.A. PBGC, VOL. XXVII., SECT. B. [Q] 



