The ScotHsh Naturalist. 
23 
29. (E. longicornis Davis. In marshy pools on Sjyhaffmim Siwd 
Ranunculus. 
Common in Perth and Fife. 
30. CE. pilula Wills. In marshy pools on Sphagnum. 
Common in Perth, Forfar, and P'ife. 
31. CE. sty gis Crosse. Ov). Ranunculus 2ind Myriophylluni. Rare. 
Black Loch, Perth, 
32 (E. serpentinus Gosse. On Myrlophyllum. Rare. 
Black Loch. 
33. CE. umbella Huh. In marshy pools on Sphagnum. Not 
common. 
In Fife and Perth. 
34. (E. ptygura Huds. Prolific in my aquarium during the past 
four years. Rare. 
35. CE. velatus Gosse. On Myrlophyllum. Rare. 
Pond near Dundee. 
Genus.— Oonochilus Ehr. (Free Swimmer.) 
36. 0. VOIVOX Ehr. Common in marshy pools. 
Tents Muir, Fife ; Storm ont Loch, Perth. 
Order 2.— B DELLOIDA. 
YAUii^Y.—PHILODmiDjE. ■ 
Genus.— Philodina Ehr. 
37. P. aculeata Ehr. In ponds and marshy pools. Not 
common. 
Fife and Forfar. 
38. P. citrina Ehr. Not plentiful, in lochs around Blairgowrie 
and near Dundee. 
39. P. erythrophthalma Ehr. 
Very common in ponds and ditches throughout Perth, 
Forfar, and Fife. 
40. P. roseola Ehr. In lakes and ponds. Not common. 
Perth and Forfar. 
41. p. megalotrocha Ehr. In marshy pools and ponds. 
Not rare. 
Perth, Forfar, Fife. 
42. P. microps, new species. In salt water in rock-pools. 
Rare. 
Carnoustie, Firth of Tay. 
43. P. tuberculata Gosse. In marshes on Tents Muir. Rare. 
