176 Proceedings of the Royal Physical Society. 



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

 Stebbing, F.K.S., on "Lynceus and the "Lynceidae," in The 

 Zoologist, March 1902, pp. 101-106. 



Suborder Cladoeera. 



Division CALYPTOMERA, G. O. Sars. 



Tribe Ctenopoda, G. 0. Sars, 1865. 



Family SidiDtE, Baird, 1850. 



Genus (1) Sida, Strauss, 1820. 



1. Sida crystallina (0. 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. 



Halitat. — Eaith Lake, Kirkcaldy, Fifeshire, common, 

 1890 ; Loch Leven, Kinross ; Loch Vennachar and Loch 

 Katrine, Perthshire. 



Genus (2) Diaphanosoma, Fischer, 1890. 



2. Diaphanosoma hrachyurum (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. 



Hahitat. — 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 (0. F. Miiller). 



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



Habitat. — Loch Lubnaig, 29th September 1894. 



^ Fob other synonyms see Professor Lilljeborg's work mentioned above. 



