158 BRITISH ENTOMOSTRACA. 



oblique, and the anterior arched ; or it may be described, 

 valves white on dorsal niarghi, bound by a brown belt, 

 with two oblique brown spots in the disc." — Muller. 



Hah. — Pool on seashore, a little above high-water mark, 

 at Thornton Loch, East Lothian, June 1835. 



13. Cypris ELLiPTiOA. Tab. XIX, fig. 12. 



Cypkis ELLiPTiCA, Bcdrd, Trans. Berw. Nat. Club, ii, 153, 1846 ; 

 Ami. aud Mag. Nat. Hist., xvii, 414, t. 9, f. 2. 



Shell nearly elliptical, of a light green colour, clouded 

 with darker patches of the same colour on the sides of the 

 shell. Valves glabrous, except round the edges, which 

 are beset with short hairs. Filaments of posterior an- 

 tennae long. 



^«3.— Pond at Highgate ; July 1846. 



14. Cypris sella. Tab. XIX, figs. 5, ha. 



CypKis SELLA, Baird, Traus. Berw. Nat. Club, ii, 153, 1840 ; Ann. 

 and Mag. Nat. Hist., xvii, 414, t. 9, f. 3. 



Shell ovate globose, of a uniform light green colour, 

 marked on the back and side with a patch of a darker hue. 

 A dark streak runs along the upper edge of the shell, be- 

 ginning from immediately behind the eye, and terminating 

 at about the same distance from the })osterior extremity. 

 It then extends a short way down the side, and then runs 

 forward a little way in a somewhat lunated shape. At 

 the anterior connnencement of the dorsal mark a narrower 

 streak of the same colour runs down the side, stopping 

 only a short distance from the anterior margin. The 

 shell is densely beset all round with short hau-s. 



This species resembles a little the Cypris vidua in shape, 

 but is smaller, and differs very considerably in the mark- 

 ings, which are uniformly the same. 



Hah. — Pond on Clapham Common, July 1846. 



