62 
BRITISH ENTOMOSTRACA. 
Abdomen bilobed at extremity, each lobe giving off 
several short setae. 
Hab. — Salt-pans at Lymington, Hants ; Schlosser, 
Rackett, S. Stevens, Esq., 1848; British Museum. 
Order II— CLADOCERA* 
Cladocera, Latreille, Cuv. Regne Anim., iv, 151. 
— Burmeister , Beit, zur Naturg. der Rankenfuss. 
Daphrides, Straus , Mem. Mus. d’Hist. Nat. v. 
Daphnoides ou Cladoceres, M. Edwards, Hist. Nat. Crust., iii, 372. 
— — Lucas , Explor. Sc. de l’Algerie. 
Character . — Body, except the head, which is distinct 
and projecting, entirely inclosed within a carapace formed 
of two valves, joined together on the back. Eeet four to 
six pairs ; articulations partly cylindrical, but chiefly fo- 
liaceous, branchiform, and not adapted for organs of mo- 
tion. Eye single, and very large. Antennae two pairs ; 
inferior branched, large, and performing the functions of 
swimming organs. Mandibles without palpi. 
Family I— DAPHNLAOE. 
Daphnia, Muller * 
Haphnides, Straus, Mem. Mus. d’Hist. Nat., v. 
Haphnidiens, M. Edwards, Hist. Nat. Crust., iii, 374 (exclus. Lynceus). 
Character . — Superior antennae generally very small; 
inferior, large, almost always two-branched. Five or six 
pairs of feet, all inclosed within the valves of the carapace. 
Eye single, large. Intestine straight. 
j Bibliographical History . — Swammerdam is the first 
author we know that has taken notice of any of the 
* KXadog, a branch ; and leepag, a horn. 
