36 
BRITISH ENTOMOSTRACA. 
Genus — Neb alia. 
Nebalia, Leach, Zool. Miscell., i, 99, 1814 ; Trans. Linn. Soc., xi, 351 . 
— Thompson, Zool. Research., No. 3, 83. 
— Besmarest, Cons. gen. Crust., 243. 
— Latreille , Cuv. Regne Anim., iv, 153. 
— M. Edwards , Hist. Nat. Crust., iii, 353 ; Ann. Sc. Nat., xiii, 
297 ; 2d series, iii, 309. 
— Bisso, Hist. Nat. Eur. merid., v, 84. 
— Bose, Man. Hist. Nat. Crust., ii. 
— Lamarck, An. s. Yerteb., vi. 
Cancer, 0. Fabricius, Eaun. Greenland., 246, No. 223. 
— Herbst, Krabben, ii, 111. 
Monoculus, Montagu , Trans. Linn. Soc., xi, 14. 
Mysis, Olivier. 
As this is the only genus as yet belonging to the 
family, the characters above given will suffice for both. 
1. Nebalia bipes. Tab. II, f. 1. 
Cancer bipes, 0. Fabricius, Eaun. Greenland., 246, No. 223, 1780. 
Cancer (Gammakelltjs) bipes, Herbst, Krabben, ii. 111, No. 56, 
t. 34, f. 7, 1796. 
Nebalia Herbstii, Leach, Zool. Miscell., i, 100, t. 44, 1814 ; Trans. 
Linn. Soc., xi, 351. 
— Besmarest, Cons. gen. Crust., 243. 
— Thompson, Zool. Research., iii, t. 11, f. 1. 
Nebalia glabra, Lamarck, An. s. Yert., v, 345. 
— Bose, Man. Hist. Crust., ii, 83. 
Nebalia ciliata, Lamarck, An. s. Yert., v. 345. 
— Bose, Man. Hist. Nat. Crust., ii, 84, t. 13, 
bis, f. 3. 
Nebalia Montagui, Thompson, Zool. Research., iii, t. 11, f. 2. 
Monoculus rostratus, Montagu, Trans. Linn. Soc., xi, 14, t. 2, 
f. 5, 1807. 
Character. — Body ovate, of a pale yellow colour, with 
a darker longitudinal line along each side ; antennae long, 
the inferior pair as long as the body, and setiferous ; 
beak of carapace sharp-pointed and moveable ; natatorial 
feet of moderate length, and setiferous; caudal appendages 
