BRITISH FRESH- WATER ENT0M0STRACA. 37 



Limnicythere Brady. 



L. inopinata (Baird). 



Cythere inopinata Baird (1). 



A fairly common species, but not yet recorded from Ireland. 



L. compressa Brady & Norman. 



Whitefield Loch, Wigtownshire, and Loch Aber, Kirkcud- 

 brightshire, are the only recorded localities for this species. 



L. sanctipatricii Brady & Robertson. 

 A rather rare species. 



L. monstrifica (Norman). 



Only recorded from the " Fen " and " Broads " districts, and 

 a canal at Fleckney, Leicestershire. 



Cytheridea Bosquet. 

 C. torosa (Jones). 



Bather a brackish-water than a fresh-water species, but found 

 occasionally in water not perceptibly brackish. The variety 

 " teres " is said to be common in the Fen district, and has also 

 been recorded from Shropshire, South Wales, Lancashire, and 

 Firth of Clyde. 



C. lacustris (Sars). 



Several records from different parts of Scotland, but only three 

 from other parts of the British Isles — namely, B. Nene and 

 R. Thames, England, and Lough Neagh, Ireland. 



As already noted, a few of the Ostracoda mentioned above are 

 to be found more frequently in brackish than in fresh water — e.g. 

 Cyp'inotus prasinus, C ypridopsella acideata, Cytheridea torosa, and 

 perhaps Cypris bispinosa. Other more decidedly brackish-water 

 forms, all belonging to the Cytheridae are : 

 Cythere pellucida Baird. 

 ,, porcellanea Brady. 

 ,, gibbosa Brady & Robertson. 

 ,, fuscata Brady. 

 Loxoconcha viridis (0. F. Miiller). 

 Cytherura gibba (0. F. Miiller). 

 And there are several further species which, although usually 

 marine, may be found at times in brackish water. 



