Land, Fresh- Water, and Marine Crustacea. 285 



pools on the shore at Aberlady; pools in an old brickfield 

 at Seafield, near Dunbar ; mouth of the Cocklemill Burn, 

 Largo Bay. 



77. Cytheridea lacustris (G. 0. Sars). 



1862. Cythere lacustris, G. 0. Sars, Zoolgisk Reise i. Somnieren, 

 .1862, p. 30. 



Hall. — Union Canal, near Edinburgh (D. Ptoberfcson) ; Loch 

 Leven, moderately frequent. 



Genus (25) Eucythere, G. S. Brady, 1868. 



78. Eucythere declivis (ISTorman). 



1864. Cythere declivis, N'orman, Nat. Hist. Trans. Northumb. and 

 Durh., vol. i. p. 16, pi. v. figs. 9-12. 



Rab. — Off the west side of Inchkeith and various other 

 places ; frequent. 



Genus (26) Krithe, G. S. Brady, Crosskey, and 

 Eobertson, 1874. 



79. Krithe hartonensis (T. E. Jones). 



1856. Oytherideis hartonensis, Jones, Mon. Ter. Entora., p. 50, 

 pi. V. figs. 2 a, h', 3 «, h. 



Hah. — Near the mouth of the Forth estuary; moderately 

 common. 



Genus (27) Loxoconcha, G. 0. Sars, 1862. 



80. Loxoconcha impressct (Baird). 



1850. Cythere impressa, Baird, Brit. Entom., p. 173, pi. xxi. fig. 9. 



Hab. — Aberlady Bay, Largo Bay, and other parts of the 

 estuary; frequent. 



81. Loxoconcha guttata (Norman). 



1864. Cythere guttata, Norman, Nat. Hist. Trans. Northumb. and 

 Durh., vol. i. p. 19, pi. vi. figs. 9-12. 



Hah. — Firth of Forth (Brady and Norman), South Bay 

 and off North Berwick ; frequent. 



