CATALOGUE OE BRITISH CRUSTACEA. 
89 
Monoculus pulex, Linn. Syst. Nat. ii. p. 1058 ; Jurine , Hist. Mon. 
p. 85, t. 8, f. 1, 2, t. 11, f. 3 — 5. 
Daphne pulex, Muller, Zool. Dan. Prodr. p. 2400. 
Daphnia pennala, Muller, Ent. p. 82, t. 12, f. 4 — 7. 
Branchipus conchiformis, Schaffer, Elem. Ent. t. 29, f. 3, 4. 
Monoculus, Bradley, Phil. Acc. p. 202, t. 25, f. 5. 
Pulex arborescens, Swammerdam, Hist. Ans. p. 68, t. 1 ; Bib/. Nat. 
t. 31, f. 1, 3. 
Animaletti aquatici, Redi. Ohs. t. 16, f. 5. 
Puceron branchu, Tremblay, Mem. p. 92, t. 6, f. 3. 
Le Perroquet d’eau, Geoff. Ins. Par. ii. p. 655. 
Monoculus pulex ramosus, Degeer, Mem. vii. p. 442, t. 27, f. 1 — 4. 
Daphnia ramosa, Koch, Deulsch. Crust, p. 35, t. 18. 
Daphnia media, Koch, l. c. p. 37, t. 1. 
Daphnia ephippiata, Koch, l. c. p. 35, t. 16. 
Var. Daphnia magna, Strauss, Mem. Mus. v. t. 29, f. 21, 22 ; M. 
Edw. Crust, iii. p. 380 ; Tremblay, Mem. t. 6, f. 11. 
Var. Daphnia longispina, Muller, p. 88, t. 12, f. 8 — 10 ; Ramdohr, 
Beitr. p. 24, t. 7 ; Strauss, Mem. Mus. v. t. 29, f. 23, 24 ; M. 
Edw. Crust, iii. p. 380 ; Koch, Deuts. Crust, p. 35, t. 17. 
Monoculus longispina, Fabr. ; Degeer, Mem. vii. t. 27, f. 1 — 4. 
Water-flea, with branched horns, Balter, Mier. 1. 12, f. 14. 
a — c. Near London. From the collection of Dr. Leach. 
d — g. Highgate Ponds. Presented by Dr. Baird, F.L.S. 
2. Daphnia psittacea. Parrot-beaked Water-flea. 
Daphnia psittacea, Baird, Brit. Ent. p. 92, t. 9, f. 3, 4. 
a—f. Blackheath, Kent. Presented by Dr. Baird, F.L.S. 
3. Daphnia Sch^fferi. The Large Water-flea. 
Daphnia Schaefferi, Baird, Brit. Ent. p. 93, t. 7, f. 1, 2, t. 8, f. A 1. 
Wasserfloh, Schaff. t. 1, f. 8. 
Branchipus conchiformis primus, Schaff. El. Ent. t. 29, f. 3, 4. 
Daphnia pulex, Koch. Deuts. Crust, p. 35, t. 15. 
Daphnia, Rymer Jones, Outl. p. 330, f. 155. 
a — f. Kent (Bexley Heath). 
g — k. Middlesex (Norwood Green). Presented by Dr. Baird, F.L.S. 
