156 
BRITISH ENTOMOSTRACA. 
8. Cypris elongata. Tab. XIX, fig. 6. 
Cypris elojstgata, Baird, Trans. Berw. Nat. Club, i, 99, t. 3, f. 10, 1835, 
and ii,152 ; Mag. Zool. and Bot., i,137, t. 5, f.13. 
— M. Edwards , Hist. Nat. Crust., iii, 401. 
Shell wedge-shaped ; anterior extremity much broader 
than posterior, which is narrow and much elongated. The 
valves are elevated on the upper margin, towards the an- 
terior extremity, and situated on the under edge ; they 
are white, transparent, and hairy. 
Hab. — At Yetholm, Roxburghshire, July 1835. 
9. Cypris Westwoodii. Tab. XIX, fig. 9. 
Cypris Westwoodii, Baird, Trans. Berw. Nat. Club, i, 99, t. 3, f. 12, 
1835, and ii, 152; Mag. Zool. and Bot., 
i, 137, t. 5, f. 14. 
— M. Edwards, Hist. Nat. Crust., iii, 400. 
Shell reniform, much elevated, and rounded on upper 
margin, deeply sinuated underneath ; rather broader at 
anterior extremity, of a green colour, and semi-transparent. 
The valves are covered all over with rather long hairs, and 
the filaments of posterior antennae are very long. 
Hab. — Yetholm Loch, Roxburghshire, July 1835^ 
10. Cypris gibbosa. Tab. XIX, fig. 8. 
Cypris gibbosa, Baird, Mag. Zool. and Bot., i, 137, t. 5, f. 15, 1837 ; 
Trans. Berw. Nat. Club, ii, 152. 
— M. Edwards, Hist. Nat. Crust., iii, 401. 
Shell ovate, and much elevated on the upper margin, 
the centre exhibiting a large gibbosity or hump ; sinuated 
underneath. The valves are smooth, except round the 
edges, which are beset with short, fine hairs, are nearly 
opaque, and of a light green colour, the anterior extremity 
being paler than the other parts of the shell. Filaments 
of both pairs of antennae beautifully plumose. 
Hab. — Ditch near the Surrey Zoological Gardens, June 
1836. 
