66 
MARINE FAUNA OF ST. ANDREWS. 
Nucula tenuis , Mont. Op. cit. ii. p. 151, v. pi. 29. f. 4. 
From deep water and the stomachs of cod and haddocks. 
Genus 2. Leda, Schumacher. 
Leda minuta , Muller. Op. cit. ii. p. 155, v. pi. 29. f. 6. 
Common in deep water and the stomachs of flounders. 
Genus 4. Pectunculus, Lamarck. 
Pectunculus glycymeris , L. Op. cit. ii. p. 166, v. pi. 30. f. 2. 
Abundant in the bay; generally brought in by the fishing- 
boats. 
Genus 5. Arca, L. 
Area tetragona , Poli. Op. cit. ii. p. 180, v. pi. 30. f. 6. 
Instead of the clusters in which it appears in the chinks of 
the rocks in the Channel Islands, solitary examples only are 
dredged off the bay in deep water. 
Fam. 8. Kelliidse, Forbes & Hanley. 
Genus 2. Montacuta, Turton. 
Montacuta hidentata , Mont. Op. cit. ii. p. 208, v. pi. 31. f. 8. 
Abundant in shell-debris on the West Sands. 
Montacuta ferruginosa, Mont. Op. cit. ii. p. 210, v. pi. 31. f. 9. 
Common in the deep water of the bay and in the stomachs 
of cod, haddocks, and flounders; also in the shell-debris on 
the West Sands after storms. 
Genus 3. LaSjEA, Leach. 
Lascea rubra, Mont. Op. cit. ii. p. 219, v. pi. 32. f. 1. 
Abundant amongst algae, in crevices under stones in rock- 
pools, and in the cavities of shells between tide-marks. 
