The Scottish Naturalist. 
77 
YhMiiN.—EVCHLANID^. 
Genus. — Euchlanis Ehr. 
60. E. triquetra -^Ar. Common in ponds, lakes and marshes. 
Perth; Forfar; Fife. 
61. E. dilatata Ehr. White Loch^ Rea Loch, Stormont 
Loch, Lindores Loch, Lundie Loch and Rescobie Loch. 
Perth ; Forfar; Fife. Common. 
62. E. macrura Ehr. Lundie, Rescobie Loch. Not very 
common, but not rare. 
63. E. defiexa Gos^e. In lochs around Blairgowrie and 
Lundie. Not rare. 
64. E. pyriformis Go^^e. Black Loch, Perth. Rare. 
Family.— THYP NID jE. 
Genus. — Cathypna Gosse. 
65. 0. diomis Gosse. Black Loch and Stormont Loch, Perth. 
Not rare. 
66. 0. latifrons Gosse. Black Loch and Lundie Loch. Perth ; 
Forfar. R are. 
67. C. luna Ehr. Common in ponds, ditches and marshes. 
Perth ; Forfar ; Fife. 
68. C. rusticula Gosse. Midmill Pond. Marshes on Tents 
Muir, Fife ; Forfar. Common. . 
169. 0. sulcata Gosse. In marshes, Stormont^ and Tents Muir. 
Perth ; Fife. Rare. 
Genus. — Distyla Eckstein. 
170. D. Ludwigii Gosse. Lundie Loch, Forfar. Rare. 
171. D. Gissensis Echst. Stormont Loch, Rescobie Loch, and 
in marshes in Forfar and Perth. Common. 
172. D. flexilis Gosse. Ponds near Dundee. Rare. 
Genus. — Monostyla Ehrh. 
173. M. COrnuta Ehr. Common in ditches, pools and marshes, 
all over Perth, Fife, Forfar. 
1 74. M. mollis Gosse. Rescobie Loch, Balgaves Loch, Forfar. 
Rare. 
175. M. bulla Gosse. Lundie Loch and Monk-mire Loch; 
Perth and Forfar. Not uncommon. 
176. M. quadridentata Ehr. Ditches near Dundee; and 
marshes on Tents Muir. Rare. 
