149 
FaM. XIV. — CARDIADiE. 
21. Cardium rusticum, common. 
22. „ edule, common. 
23. „ Norvegicum, rare. 
Fam. XV. - LuCINIDiB. 
24. Lucina flexuosa, specimen, very rare. 
25. „ Leucoma, semi-rare. 
Fam. XIX. — Mytilid.®. 
26. Mytilus edulis, semi-common. 
27. „ barbata, rare. 
28. „ tulipa, rare. 
Fam. XX. — Arcade. 
29. Nucula nucleus, rare. 
Fam. XXII.-—OsTREADiE. 
30. Pecten varius, common. 
31. „ maximus, uncommon. 
32. „ Danicus (1 specimen), very rare. 
33. Anomia ephippium, semi-common, 
34. Ostreas edulis, common. 
Beds of oysters upon rocky and shingly bottoms are found 
to extend about eight miles, running from Cymmeran Bay 
to beyond Bhoscolyn to the north ; great numbers are sent 
to the Manchester market. 
CLASS IV.— PROSOBBANCHIATA, 
Fam. XXVII. — Chitonid,®. 
35. Chiton cinereus, rare. 
Fam. XXVIII. — Patellid®. 
36. Patella vulgata (and others), common. 
37. „ pellucida. 
38. Acmea virginea, rare. 
39. „ testudinalis, common. 
Fam. XXIX. — Dentaliad®. 
40. Dentalium dentalis (Holyhead), rare. 
Fam. XXX. — Calyptr®id®. 
41. Pileopsis Hungaricus, rare. 
