78 
TJie Scottish Naturalist. 
Family.— C OLURIDM. 
Genus. — Colurus Ehr. 
177. C. dicentrus Gosse. In tide-pools at Carnoustie, Firth of 
Tay. Not rare. 
178. C. grallator G^osse. Tide-pools in Firth of Tay. Rare. 
179. C leptus Gosse. In fresh water at Emmock Wood; also 
marine in Firth of Tay. Rare. 
180. C. deflexus Ehr. Common in ditches and marshes, in 
fresh water. 
Perth ; Forfar. 
181. 0. obtusus Gosse. In ditches near Dundee, in fresh water. 
Common. 
182. 0. caudatus Ehr. In Black Loch and in ditches. 
Fife ; Perth. Common. 
183. 0. amblytelus Gosse. In salt water in rock-pools, at 
Carnoustie, Firth of Tay. Not common. 
184. C. dactylotus Gosse. In tide-pools on Lucky Scalp, 
Firth of Tay. Rare. 
185. C. pedatus Gosse. Wormit Bay (tide-pools), Firth of Tay, 
Marine. Rare. 
186. 0. COelopinus Gosse. In tide-pools at Carnoustie, Firth of 
Tay. Not rare. 
Genus.— Metopidia Ehr. 
187. M. SOlida Gosse. In ditches, ponds and marshes. 
Perth; Forfar; Fife. Plentiful. 
188. M. lepadella Ehr. In lakes, ponds and ditches. 
Forfar ; Perth ; Fife. Common. 
189. M. oxysterna Gosse. Abundant in Black Loch and Stor- 
mont Loch, Perth. 
190. M. braotea Ehr. Common in marshes "and ditches. 
Perth; Fife. 
191. M. triptera i^Vir. Lundie Loch and Black Loch. 
Perth ; Forfar. Not common. 
Genus. — Monura Ehr. 
192. M. colurus Ehr. In tide-pools. 
Firth of Tay. 
193. M. loncheres. In tide-pools. 
Invergowrie, Firth of Tay. Common. 
