92 CATALOGUE OF BRITISH CRUSTACEA. 



3. MACEOTHRIX. 



Daphnia, Midler. 



Lynceus, Desm. Cons. 



Moiioculus, Jurine, Mon. 



Macrothrix, Baird, Ann. fy Mag. Nat. Hist. xi. p. 87 (1843). 



Acanthoeercus, Schcedler, Erichs. Arch. (1846). 



1. MACROTHRIX LATICORNIS. Broad-horned Water-flea. 



Macrothrix laticornis, Baird, Ann. $ Mag. Nat. Hist. xi. p. 87, t. 2, 



f. 9, 10 ; Brit. Ent. p. 103, t. 15, f. 2. 

 Monoculus laticornis, Jurine, Mon. p. 151, t. 15, f. 6, 7. 

 Daphnia curvirostris, Midler, Ent. p. 93? t. 13, f. 1, 2? 

 Acanthoeercus curvirostris, Sch&dler, Erichs. Arch. 1846. 



a d. Near London, Southall, Highgate. Presented by Dr. Baird. 

 Ireland, Belfast. 



2. MACROTHRIX ROSEUS. Pink Water-ffea. 



Monoculus roseus, J urine, Hist. p. 150, t. 15, f. 4, 5. 



Daphnia rosea, M. Edw. Crust, iii. 384 ; Yarrell, Brit. Fishes, ii. 



p. 93 (vignette). 

 Macrothrix roseus, Baird, Brit. Ent. p. 104 ; Berw. Nat. Club, ii. 



p. 149. 



Lochmaben (Sir Wm. Jardine). 



4. BOSMINA. 



Monoculus, Jurine. 



Lynceus, Midler. 



Daphnia, M. Ediv. 



Bosmina, Baird, Berw. Nat. Club. (1845). 



Eunica, Koch, Deuts. Crust. 



1. BOSMINA LONGIROSTRIS. Long-beaked Water-flea. 



Bosmina longirostris, Baird, Ann. $- Mag. N. Hist. xvii. p. 412, t. 



9 B, f. 1 ; Brit. Ent. p. 105, t. 15, f. 3. 

 Lynceus longirostris, Muller, Ent. p. 76, t. 10, f. 7, 8. 

 Monoculus conmtus, Jurine, Hist. p. 142, t. 14, f. 8 10. 



