I have found in Western Scotland

Abra alba Helcion pellucidum Ovatella myosotis Abra prismatica Hiatella arctica Palliolum tigerinum Acanthocardia echinata Hinia incrassata Panomya arctica Acteon tornatalis Hinia reticulata Parvicardium exiguum Aequipecten opercularis Hydrobia ulvae Parvicardium ovale Alvania beanii Iotha fulva ulyssiponensis Alvania cancellata Jujubinus montagui Patella vulgata Alvania punctura Jupiteria minuta Pecten maximus Angulus squalidus Kellia suborbicularis Phaxus pellucidus Anomia ephippium Lacuna crassior Philine punctata Antalis antalis Philine scabra Aporrhais pespelecani Pododesmus patelliformis Arca tetragona Polinices catena Arcopagia crassa Laevicardium crassum Polinices montagui Arctica islandica Lamellaria latens Polinices polianus Barnea candida Lasaea adansoni noachina Bittium reticulatum Lepidochitona cinereus Raphitoma boothii Brachystomia carrozzai Leucophytia bidentata Raphitoma linearis Buccinum undatum Limacina retroversa Retusa obtusa Caecum glabrum Limaria hians Retusa truncatula Caecum imperforatum Limatula subauriculata Rissoa lilacina agg. Calliostoma zizyphinum Littorina littorea Rissoa membranacea Capulus ungaricus Littorina mariae/obtusata Rissoa parva Cerastoderma edule Littorina neglecta Scaphander lignarius Cerastoderma glaucum Littorina nigrolineata Scrobicularia plana Cerithiopsis tubercularis Littorina obtusata Skenea sp.? Chamelea gallina Littorina saxatilis Skeneopsis planorbis Chlamys distorta Lucinoma borealis Spisula elliptica Chlamys islandica Lutraria angustior Spisula solida Chlamys varia Lutraria lutraria Spisula solida Chlamys varia var.nivea Macoma balthica Spisula subtruncata Chrysallida obtusa Macoma calcarea Tapes aureus Cingula trifasciata Mactra stultorum Tapes decussatus Circomphalus casina Mangelia attenuata Tapes rhomboides Clausinella fasciata Mangelia coarctata Tectura testudinalis Cochlodesma praetenu Mangelia nebula Tectura virginea Colus gracilis Manzonia crassa Tellimya ferruginosa Corbula gibba Margarites helicinus Tellina tenuis Crasostrea angulata (farmed) Marshallora adversa Thracia distorta Crenella decussata Megastomia conspicua Thracia phaseolina Cylichna cylindracea Melanella alba Thracia villosiuscula graeca Melarharphe neritoides Thyasira croulinensis Donax vittatus Modiolarca tumida Thyasira flexuosa Dosinia exoleta Modiolula phaseolina Thyasira flexuosa Dosinia lupinus Modiolus modiolus Timoclea ovata Ebala nitidissima Moelleria costulata Tricolia pullus Emarginula fissura Moerella donacina Tridonta borealis Ensis arcuatus Moerella pygmaea Tridonta elliptica Ensis ensis Musculus discors Tridonta montagui Ensis siliqua Mya arenaria Trivia arctica Epitonium clathratulum Mya truncata Trivia monacha Epitonium clathrus Myrtea spinifera Trophon clathratus Epitonium trevelyanum Mysella bidentata Trophon truncatus Epitonium turtonis Mysia undata Turbonilla crenata Eulima bilineata Mytilus edulis Turrisipho fenestratus Fabulina fabula Natica clausa Turritella communis Gari depressa Neptunea antiqua Turtonia minuta Gari fervensis Nucella lapillus Velutina velutina Gari tellinella Nuculana pernula Venerupis senegalensis Gibbula cineraria Nuculoma tenuis? Venerupis senegalensis (saxatalis) Gibbula magus Ocenebra erinacea Yoldiella lenticula? Gibbula tumida Oenopota rufa Yoldiella philippiana Gibbula umbilicalis Oenopota turricula Yoldiella sp. B Glossus humanus Onoba aculeus Yoldiella sp. C Glycymeris glycymeris Onoba semicostata Zirfaea crispata Goodallia triangularis Ostrea edulis