176 Proceedings of the Royal Physical Society. 



in 1900 (700 pp., and 87 plates). See also the Eev. T. R R 

 Stebbing, F.R.S., on " Lynceus and the Lynceidse," in The 

 Zoologist, March 1902, pp. 101-106. 



Suborder Cladoeera. 



Division CALYPTOMERA, G. O. Sars. 



Tribe Ctenopoda, G. O. Sars, 1865. 



Family Sidid^e, Baird, 1850. 



Genus (1) Sida, Strauss, 1820. 



1. Sida crystallina (O. F. Miiller). 



1776. Daphne crystallina, Miiller, Zool. Dan. Prod., p. 200, 

 No. 2405. 

 1 1820. Sida crystallina, Strauss, Mem. Mus. Hist. Nat., vol. vi. 

 p. 157. 



Habitat. — Raith Lake, Kirkcaldy, Fifeshire, common, 

 1890 ; Loch Leven, Kinross ; Loch Yennachar and Loch 

 Katrine, Perthshire. 



Genus (2) Diaphanosoma, Fischer, 1890. 



2. Diaphanosoma brachyiorum (Lieven). 



1848. Sida brachyura, Lieven, Neueste Schrift. d. Naturf. Gesell- 

 schaft in Danzig, 4 : ten Bds. 2 : tes Heft. p. 20, pi. iv. 

 figs. 3-9. 



Habitat. — Loch Leven, 1890 ; Raith Lake, 1890, common ; 

 Loch Katrine, Loch Achray, Loch Vennachar ; Marfield 

 Loch, Midlothian, September 1901 (Dr and Miss Sprague). 



Genus (3) Latona, Strauss, 1820. 



3. Latona setifera (O. F. Miiller). 



1785. Daphnia setifera, Miill., Entomostraca, p. 98, pi. xiv. figs. 5-7. 



Habitat. — Loch Lubnaig, 29th September 1894. 



1 For other synonyms see Professor Lilljeborg's work mentioned above. 



