CATALOGUE OF BRITISH CRUSTACEA. 91 



7. DAPHNIA MUCRONATA. Pointed Water-flea. 



Daplmia raucronata, Midler, Ent. 94, 1. 13, f. 5, 6 ; M. Edw. Crust, 

 ni. 382 ; Baird, Proc. Berw. Nat. Club, ii. p. 148 : Brit. Ent v 

 p. 99, t. 10, f. 2, 3. 



Monoculus bispinosus, Degeer, Mem. vii. t. 28, f. 38. 



Monoculus mucronatiis, Jurine, Hist. t. 14, f. 1, 2. 



Daphnia bispinosus, Koch, Deuts. F. Crust, p. 8, t. 1 . 



Daphnia mucronata, var. acute-rostrata, Baird, Brit. Ent. t. 10, f. 3. 



Daphnia mucronata, var. obtuse-rostra ta, Baird, Brit. Ent. t. 10, f. 2. 



ak. Near London. (Islewortb, &c.) Presented by Dr. Baird. 



2. MOINA. 



Daphnia, J fuller. 

 Monoculus, Fabr. 

 Pasithea, Koch (not Kroner). 

 Moina, Baird, Brit. Ent. (1850). 



1. MOINA RECTIROSTRIS. Straight-beaked Water-flea. 



Daphnia rectirostris, Mulle-r, Ent. t. 12, f. 1, 2. 



Monoculus rectirostris, Fabr. Ent. Si/st. ii. 493 ; Jurine, Mon. t. 13 



f. 3, 4. 



Pasilhea rectirostris, Koch, Deuts. Crust, p. 35, t. 24. 

 Pasithea gibba, Koch, I. c. p. 36, t. 16? 

 Daphnia macrocopus, Strauss, Mem. Mus. v. t. 29, f. 30. 

 Moina rectirostris, Baird, Brit. Ent. p. 101, t. 11, f. 1, 2. 

 Blackheath, Kent. 



2. MOINA BHACHIATA. Armed Water-flea. 



Daphnia brachiata, Desm. Cons. 373; M. Edw. Crust, iii 383- 

 Baird, Zoologist, 1843, p. 193; Proc. Benvicksh. N. Club, ii.' 



Monoculus brachiatus, Jurine, Hist. p. 131, t. 12, f. 3 4. 

 Moina brachiata, Baird, Brit. Ent. p. 102, t. 9, f! 1, 2. 



a g. Near London (Blackheath and Old St. Pancras Road) Pre 

 sented by Dr. Baird, F.L.S. 



