114 
CATALOGUE OF BRITISH CRUSTACEA. 
1. Alteutha depressa. Flat Sea-water-flea. 
Alteutha depressa, Baird , Proc. Berw. Nat. Club, ii. p. loo; Brit. 
Ent. p. 216, t. 30, f. 1, 2. 
Cyclops depressus, Baircl, Mag. Zool. §• Bat. i. p. 331, t. 10, 
f. 9—12. 
Berwick Bay. 
Fam. II. DIAPTOMIM. 
Diaptomidae, Baird, Brit. Ent. p. 218. 
1. DIAPTOMUS. 
Diaptomus, Westw. Ent. Text-Book. 
Omethia, Templeton, Trans. Ent. Soc. ii. p. 118. 
Cvclopsina, M. Edw. Crust, iii. p.427. 
Glaucea, Koch, Deutsch. Crust, p. 35. 
Cyclops, sp. Muller, Ent. p. 104. 
Monoculus, sp. Linn. 
1. Diaptomus castor. Castor Water-flea. 
Diaptomus castor, Westiv. Partington’s Cycl. Nat. Hist. art. Cy- 
clops ; Baird, Brit. Ent. p. 219, t. 26, f. 1 — 2 a j. 
Monoculus castor, Jurine, Mon. p. 50, t. 4 — 6. 
Cyclops castor, Desm. Cons. t. 53, f. 5 ; Baird, Mag. Zool. &• Bot. i. 
p. 324, t. 10, f. 1—8. 
Cvclopsina castor, M. Edw. Crust, iii. p. 427. 
Var. Cyclops caeruleus, Muller, Ent. p. 102, t. 15, f. 1 — 9. 
Var. Cyclops lacinulatus, Muller, Ent. p. 105, t. 16, f. 4 — 6, J.; 
Ramd. Beytr. p. 7, t. 2, f. 4 — 12. 
Var. Cyclops rnbens, M'uller, Ent. p. 104, t. 16, f. 1 — 3; Baird, 
Proc. Berw. Nat. Club, i. p. 97, t. 2, f. 2 ( jun .). 
Var. Glaucea rubens, Koch, Deutsch. Crust, p. 35, t. 4, $ . t. 5, J . 
Var. Glaucea casrulea, Koch, l. c. p. 35, t. 6 ; Baker, Micr. Made 
Easy, p. 93, t. 9, f. 2. 
Ponds and slow running water. 
a — e. London. Presented by Dr. Baird. 
