Deronectes tlepressus, Fnh., and elegnns, Panzer. .'505 



I liave records for depresaus^ V>\'\\. auct., for 43 out of the 

 70 English and for 21 out of the 41 Scottish county and vice- 

 county divisions, and it is most probable that the majority of 

 tliese refer to elegans, which is almost certainly a typical 

 " British " species in Watson's sense of tlie term*. 



With re<rartl to the distribution of this species in the 

 southern kScottisli counties, it occurred in the following 

 twenty-one lochs : — 



L. Ettrick.* Dumfries. 

 L. Skene. „ 



Castle L. \ 



WW I ( Lochmaben, Diuiifriefl. 



liigbtae L. ) 



L. Kinder. Kirkcudbright. 



Locbruiton L. ,, 



Milton L. ,, 



Auchenreocb L. ,, 



L. Aber. „ 



L. Howie. ,, 



L. Stroan. „ 



L. Skeirow. „ 



L. Dee. „ 



Long L. of tbe Dungeon. Kirkcudbriglit, 



Kound L. » _ .. . M 



L. Nanocb. Kirkcudbrigbt. 



L. Valley. „ 



Round L. of Glenhead. Kirkcudbrigbt. 



L. Harrow. „ 



In Cumberland the only loch I examined other than Talkin 

 Tarn was Tindale Tarn, about 3 miles distant, and there this 

 species occurred commonly. 



So far I have not found depresses in any Britisli stream, 

 but if it occurs in Irish rivers — a point not yet determined, 

 as all my Irish specimens are from lochs and canals — it njay 

 perhaps also occur in Scottish ones. 



I have, or have seen, river specimens of elegans from the 

 ISith, Dumfries; Spcy, Easterness ; Broadford K., Skye ; 

 Almond B., Mid Perth; and the Water of Leith, Edin- 

 burgh. These river specimens are always more brightly 

 Coloured than loch specimens, and I think I should not hesi- 

 tate to determine female river specimens of elegans even in 

 the absence of males. However, if depressus a\so occurs in 

 some rivers it may have brightly coloured individuals al.so. 



Much remains to be done on the economy of these two 



• ' Cybele Britannicb, or Britieh Plants and tbeir Geograpbical Kelu- 

 tious,' 1847. 



