114 CATALOGUE OF BRITISH CRUSTACEA. 



1. ALTEUTHA DEPRESSA. Flat Sea-water-flea. 



Alteutha depvessa, Baird, Proc, Berw. Nat. Club, ii. p. 155 ; Brit. 



Ent. p. 216, t. 30, f. 1, 2. 

 Cyclops clepressus, Baird, Mag. Zool. $ Bot. i. p. 331, t. 10, 



f. 912. 



Berwick Bay. 



FAM. II. DIAPTOMHLE. 



Diaptomidae, Baird, Brit. Ent. p. 218. 



1. DIAPTOMUS. 



Diaptomus, Westw. Ent. Text-Book. 

 Omethia, Templeton, Trans. Ent. Soc. ii. p. 118. 

 Cyclopsina, M. Edw. Crust, iii. p. 427. 

 Glaucea, Koch, Deutsch. Crust, p. 35. 

 Cyclops, sp. M'uller, Ent. p. 104. 

 MoDoculus, sp. Linn. 



1. DIAPTOMUS CASTOR. Castor Water-flea. 



Diaptomus castor, Westw. Partington's Cycl. Nat. Hist. art. Cy- 

 clops ; Baird, Brit. Ent. p. 219, t. 26, f. 1 2 aj. 



Monocnlus 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. 18. 



Cyclopsina castor, M. Edw. Crust, iii. p. 427. 



Var. Cyclops cseruleus, Midler, Ent. p. 102, t. 15, f. 1 9. 



Var. Cyclops lacinulatus, Midler, Ent. p. 105, t. 16, f. 4 6, $.; 

 Ranid. Bei/tr. p. 7, t. 2, f. 412. 



Var. Cyclops rubens, M'dller, Ent. p. 104, t. 16, f. 1 3; Baird, 

 Proc. Benv. Nat. Club, i. p. 97, t. 2, f. 2 (jun.). 



Var. Glaucea rubens, Koch, Deutsch. Crust, p. 35, t. 4, . t. 5, $. 



Var. Glaucea carulea, Koch, 1. c. p. 35, t. 6 ; Baker, Micr. Made 

 Easy, p. 93, t. 9, f. 2. 



Ponds and slow running 1 water. 



a e. London. Presented by Dr. Baird. 



