64 Proceedings of the Royal Physical Society. 
Macrothricide, and Lynceide,” by the Rev. A. M. Norman 
and Dr G. 8. Brady, have also been largely consulted. 
Various other papers on the Cladocera, both by British and 
Continental authors, have been made use of in determining 
the different species recorded in the list. 
Order CLADOCERA. 
Suborder Caly ptomera. 
Family SIDID &. 
Genus Sida, Straus. 
Sida erystallina (O. F. Miiller). 
1776. Daphne crystallina, O. F. Miller, Zool. Dan. Prod., No. 2405. 
1850. Sida crystallina, Baird, Brit. Entom., p. 107, pl. xii., figs. 3, 
4; pl. xiii., fig. 1 a-h. 
This large and fine species has only been obtained in one 
locality within the prescribed area, viz., in Raith Lake, Kirk- 
caldy, Fifeshire. I have records of the species for the 
following Scottish localities beyond our district :—Greenan 
Loch, Bute; Middle Loch (near the source of the river 
Lussa), Mull; Loch Awe, district of Assynt, Sutherland- 
shire; and Loch Tay, Perthshire. 
Genus Daphnella, Baird. 
Daphnella brachyura (Liévin). 
1848, Sida brachyura, Liévin, Branch. d. Danziger Geg. 
1850. Daphnella wingii, Baird, op. cit., p. 109, pl. xiv., figs. 1-4. 
Daphnella is much smaller than the last. It has been 
obtained in two localities within the district, viz., Loch 
Leven, Kinross-shire; and Raith Lake, Kirkcaldy. Also in 
the following Scottish localities beyond the limits of the 
‘district, viz., Middle Loch, Loch Scuban, Loch Ardglass, and 
Loch Uisg, all in the island of Mull. Greenock (M. F. 
Dunlop). 
