BRITISH FRESH-WATER ENTOMOSTRACA. 439 



This species, as limited by Lilljeborg, is not very common. I 

 have taken very fine examples in Loch Morar. 



B. mixta Lilljeborg. 



B. lilljeborgii Scoiirfield (31). 

 Only seen in Lough Erne, where it was discovered by Mr. 

 W. F. de Y. Kane (15). It does not differ v^ery much from the 

 following, and it is very doubtful whether it ought to be regarded 

 as a difstinct species. 



B. coregoni Baird (2). 



Baivd first found this species in Lochmaben Castle Loch, in 

 Dumfriesshire, where it has been taken more recently by Canon 

 Norman. It has also quite recently been found in the north of 

 Scotland by Mr. James Murray, of the Lake Survey. Hodgson 

 records it from Ellesmere (11), and Mr. Kane has taken a few 

 examples (verified by Lilljeborg) in Upper Lough Erne. 



Lyncodaphnidae. 

 Ilyocryptus Sars. 

 I. sordidus (Lievin). 



AcantholeheHs sordidus Norman (16). 

 A moderately common species, but it must be sought for by 

 collecting the sediment from the bottom of ponds, etc. 



I. agilis Kurz. 



I first recorded this from the Victoria regia Tank at the Royal 

 Botanic Gardens, Regent's Park (27). Since then I have taken 

 it in RoUesby and Barton Broads, Norfolk, the Basingstoke canal 

 at Weybridge, and in one of the tanks in the lily-house at Kew 

 Gardens (32). Quite recently Mr. R. Gurney has also found it 

 in Barton Broad. 



I. acutifrons Sars. 



This is a new record for the British Isles. It was discovered 

 by Mr. James Murray in material taken last September from 

 Loch Meide, in Sutherland, and has also been seen by him in 

 a collection from Loch Shin in the same county. 



Macro thrix Baird. 

 M. laticornis (J urine). 



A pretty widely distributed but not very common species. 



