THE NEIGHBOURHOOD OF EDINBURGH. 471 
Gen. Dyticus. 
D. circumflexus, IlUg. LeacK Steph. Samou. pi. 3. f. 13. 
In ponds and ditches, not common. 
D. marginalis, Linn. Marsh. Don, 
Not nearly so common as in the more southern parts of 
Scotland, and in England. Muttonhole. 
D. punctulatus, Illig. Marsh, Don, 
This appears to be more plentiful than either of the pre- 
ceding species, not only in this neighbourhood, but in other 
parts of the country. Duddingston Loch. Braid Hill 
marshes. Lochend. 
Gen. AciLius. 
A. sulcatus, Samou. Dytis. sulcatus^ Linn. Dytis, cme- 
reus. Marsh. 
Extremely common in every piece of stagnant water. 
Braid Hill marshes, Duddingston Loch. Lochend, &c. 
Throughout the year. 
A. canaliculatus, Steph. Acil. caliginosus, Curtis, vol. ii. 
pi. 63. 
Near Edinburgh. Mr Bainbridge. Steph. lUus. vol. ii. 
p. 94. 
Fam. GYRINIDiE. 
Gen. Gyrinus. 
G. aeneus, Leach. Steph. 
Duddingston Loch. Dr Leach. Steph. Illus. 
G. marinus, Gyllen, Steph, 
Lochend. Dr Leach. Steph. Illus. 
G. natator, Linn. Marsh, Samou, 
Abundant in stagnant waters. Duddingston Loch. 
Lochend, kc. &c. 
