34 D. J. SCOURFIELD, SYNOPSIS OF THE KNOWN SPECIES OF 



Potamocypris Brady. 

 P. fulva (Brady). 



Bairdia ftdva. Brad}' (56) 

 A fair number of records altogether from Scotland, Ireland, 

 South Wales, and north of England, but only one from south and 

 east of England — viz. Kew Gardens — and none from North Wales. 



Notodromas Lilljeborg. 

 N. monacha (0. F. Miiller). 

 Cypris monacha Baird (1). 

 Found in all parts of the country, with the possible exception 

 of the extreme north of Scotland. 



Cyprois Zenker. 

 C. marginata (Straus). 



? Cypris gibbosa Baird (1). 

 Cyprois fiava Brady & Norman (57), 1889. 

 To the single published British locality — Duddingston Loch, 

 near Edinburgh — can now be added R. Thurne at Potter Heigham, 

 Norfolk, where I took specimens in 1898. 



Ilyocypris Brady k Norman. 

 I. gibba (Ramdohr). 



Cypris gibba (in part) Brady (56). 

 The records for this are not quite satisfactory, as many of them 

 include /. biplicata. 

 I. biplicata (Koch). 



Cypris gibba (in part) Brady (56). 

 /. bradii Brady & Norman (57), 1896. 

 This seems to be a commoner form than /. gibba. 



Candona Baird. 

 C. Candida (O. F. Miiller), as defined by Vavra (68). 

 C. lucens (in part) Baird (1). 

 An abundant and widely distributed species. The British records 

 comprise two or three distinct forms possibly of specific rank. 

 C. neglecta Sars [Miiller (66)]. 



C. Candida (in part) Brady (56). 

 Hartvvig, who has given much attention to this genu>, says 

 (62, p. 92) that one of Professor Brady's figures (56, PI. 37, le) 

 certainly refers to this species, and not to C. Candida. Brady 

 k, Norman also refer to a form " very closely approaching C. 

 neglecta " (57, p. 99). 



