64 
MARINE FAUNA OF ST. ANDREWS. 
of the bay, chiefly attached to bivalves. Worn valves are 
abundant in the gravel at the East Rocks. 
Pecten opercularis , L. Op. cit. ii. p. 59, v. pi. 22. f. 3 & 3 a. 
Frequently brought by the fishing-boats, and thrown on the 
beach after storms. 
Pecten tigrinus , 0. F. Muller. Op. cit. ii. p. 65, v. pi. 23. 
f. 2 & 2 a. 
Perfect specimens from the coralline ground and the 
stomachs of haddocks and flounders ; single valves on the 
beach in gravel and after storms. 
Pecten similis , Laskey. Op. cit. ii. p. 71, v. pi. 23. f. 5. 
Frequent in the stomachs of flounders and haddocks ; more 
rarely procured from the coralline ground. 
Pecten maximus , L. Op. cit. ii. p. 73, v. pi. 24. 
Occasionally brought up on the deep-sea lines of the fisher¬ 
men. 
Genus 2. Lima, Bruguibre. 
Lima subauriculata , Mont. Op. cit. ii. p. 82, v. pi. 25. f. 3. 
Not common ; from the deep water of the bay. 
Lima Loscombii. G. B. Sowerby. Op. cit. ii. p. 85, 
v. pi. 25. f. 4. 
Single valves occasionally appear in the fishing-boats; 
perfect specimens are found in the stomach of the cod. 
Fam. 5. Mytilidse, Fleming. 
Genus 1 . Mytilus, L. 
Mytilus edulisj L. Op. cit. ii. p. 104, v. pi. 27. f. 1. 
Constituting by their vast numbers a most important mussel- 
bed at the estuary of the river Eden. Multitudes of the young 
animals, besides, form a coating to the posts of the salmon- 
nets, to rocks, stones, and tangle-roots in various places. 
