148 ANNALS OF SCOTTISH NATURAL HISTORY 



l^unbeg, I found the species even more abundant than at 

 Dubh'n, under exactly similar conditions, except that the 

 water in the pools was practically fresh, probably owing 

 to the fact that the weather was exceptionally wet. In 

 October I went to Bangor (Co. Down) where I at once 

 found the species, but much scarcer than at Donegal, mostly 

 in clear salt water ; but a few were in pools of stale sea- 

 water. I then went to Kirkcudbrightshire, and at Douglas 

 Hall I found 9 specimens in as many minutes, in extremely 

 small rock pools, and on returning to Ireland I found the 

 species again at Larne (Co. Antrim). 



It w^as first found in Britain by Mr. W. H. Bennett, at 

 Ilfracombe, "in putrid sea-water pools" (''EMM.," ser. 2, vi. 

 181, 1895), and has since been taken in that county (N. 

 and S. Devon), in E. and W. Cornwall and in N. Somerset, 

 by Messrs. J. H. Keys, G. C. Champion and others. It has 

 also been taken in Carmarthenshire (Llanstephen), as I saw 

 specimens from there in the collection of Mr. Kidson 

 Taylor. 



It is, perhaps, a fact of some significance that all these 

 5 southern British species which have turned up in the 

 south-west corner of Scotland are also found in Ireland. 

 They perhaps all belong to that group of the British fauna 

 known as Lusitanian (see R. F. Scharff, ' The History of the 

 European Fauna,' "Contemp. Sci. Series," 287-308, 1899; 

 and " European Animals," Arch. Constable and Co., 1 907). The 

 fact that three of these species have been recorded for places 

 on the western coast of England, i.e.^ B. signaticollis, H, 

 dorsalis {ijiulsanti), and O. lejolisii^ is suggestive that pos- 

 sibly they — and other members of the same group — may 

 be discovered all along that coast wherever suitable habitat 

 offers. That they are confined in Scotland to the south- 

 western corner is also improbable, and there seems no 

 reason why they should not yet be discovered among the 

 Western Isles, as other members of the Lusitanian group 

 have been found there. 



Besides the four species in the Lusitanian group, which 

 constitute new Scottish records, two other records in the 

 following list are of special interest. Ccelambus versicolor, 

 Schall, has, so far as I know, only been once previously 



