| Emarginula fissura | Stevenston, Troon |
| Patella vulgata | Cumbrae, Lunderston, Largs, Troon |
| Tectura testudinalis | Bute E, Cumbrae, Lunderston, Largs, Ardrossan, Stevenston, Troon |
| Tectura virginea | Lunderston |
| Calliostoma zizyphinum | Cumbrae |
| Gibbula magus | Bute W, Farland Head |
| Gibbula cineraria | Farland Head, Ardrossan, Stevenston, Troon |
| Gibbula umbilicalis | Farland Head |
| Lacuna pallidula | Ardrossan |
| Lacuna vincta | Lunderston |
| Littorina littorea | Troon |
| Littorina saxatilis | Stevenston, Troon |
| Littorina mariae | Cumbrae |
| Littorina obtusata / mariae | Farland Head, Ardrossan, Troon |
| Hydrobia ulvae | Ardmore Point |
| Rissoa parva | Stevenston |
| Rissoa membranacea | Stevenston |
| Turritella communis | Stevenston |
| Bittium reticulatum | Stevenston |
| Epitonium clathrus | Bute E, Troon |
| Epitonium turtonis | Stevenston |
| Aporrhais pespelecani | Bute E, Stevenston, Helensburgh |
| Polinices catena | Bute E, Cumbrae, Stevenston, Troon |
| Polinices polianus | Cumbrae, Ardrossan, Stevenston, Troon |
| Polinices sp. | Troon |
| Trivia arctica | Stevenston, Troon |
| Trivia monacha | Farland Head, Stevenston |
| Nucella lapillus | Bute W, Bute E, Cumbrae, Farland Head, Lunderston, Stevenston, Troon |
| Colus gracilis | Cumbrae |
| Neptunea antiqua | Bute E, Cumbrae, Lunderston, Largs |
| Buccinum undatum | Bute E, Cumbrae, Lunderston, Ardrossan, Stevenston, Troon |
| Hinia reticulata | Bute E, Farland Head, Ardrossan, Stevenston, Troon |
| Hinia incrassata | Cumbrae |
| Mangelia attenuata | Stevenston |
| Raphitoma linearis | Stevenston |
| Leucophytia bidentata | Stevenston |
| Nucula sp. | Lunderston |
| Glycymeris glycymeris | Stevenston |
| Anomia ephippium | Largs |
| Mytilus edulis | Farland Head, Lunderston, Largs, Stevenston |
| Modiolus modiolus | Farland Head, Lunderston, Nr. Coulport |
| Pecten maximus | Farland Head |
| Chlamys islandica | Bute E, Cumbrae, Lunderston, Ardmore Point |
| Chlamys varia | Stevenston |
| Aequipecten opercularis | Arran E, Bute W, Bute E, Farland Head, Lunderston, Ardrossan, Stevenston |
| Limaria hians | Stevenston |
| Astarte sp. | Lunderston |
| Tridonta elliptica | Cumbrae, Lunderston, Ardmore Point |
| Tridonta montagui | Cumbrae, Lunderston |
| Lucinoma borealis | Bute W, Cumbrae, Farland Head, Lunderston, Stevenston |
| Arctica islandica | Cumbrae, Stevenston |
| Acanthocardia echinata | Largs, Stevenston |
| Parvicardium ovale | Stevenston |
| Cerastoderma edule | Bute W, Farland Head, Lunderston, Largs, Ardrossan |
| Cerastoderma glaucum | Stevenston |
| Laevicardium crassum | Bute W, Lunderston, Stevenston |
| Dosinia exoleta | Arran E, Bute W, Cumbrae, Lunderston, Ardrossan |
| Dosinia lupinus | Cumbrae, Largs, Stevenston, Troon |
| Circomphalus casina | Farland Head |
| Clausinella fasciata | Arran E, Stevenston |
| Chamelea gallina | Bute E, Cumbrae, Farland Head, Lunderston, Stevenston, Ardmore Point, Troon |
| Tapes rhomboides | Stevenston |
| Venerupis senegalensis | Arran E, Bute E, Cumbrae, Farland Head, Lunderston, Largs, Ardrossan |
| Venerupis senegalensis (saxatalis) | Cumbrae |
| Mactra stultorum | Cumbrae, Stevenston, Troon |
| Spisula sp. | Farland Head, Stevenston |
| Spisula elliptica | Stevenston |
| Spisula solida | Bute W, Cumbrae |
| Spisula subtruncata | Bute W, Lunderston, Largs, Ardrossan, Stevenston, Troon |
| Lutraria lutraria | Arran E, Cumbrae, Stevenston |
| Donax vittatus | Bute W, Cumbrae, Largs, Stevenston, Troon |
| Angulus tenuis | Arran E, Bute W, Bute E, Cumbrae, Farland Head, Lunderston, Largs |
| Fabulina fabula | Stevenston |
| Macoma balthica | Bute E, Largs, Troon |
| Gari fervensis | Bute E, Cumbrae, Stevenston |
| Ensis ensis | Cumbrae, Lunderston |
| Ensis arcuatus | Cumbrae, Largs, Stevenston, Troon |
| Ensis siliqua | Bute W, Cumbrae, Farland Head, Lunderston, Stevenston, Troon |
| Mya truncata | Bute E, Cumbrae, Lunderston, Stevenston |
| Mya arenaria | Arran E, Bute W, Lunderston, Largs, Troon |
| Hiatella arctica | Bute E, Cumbrae, Lunderston, Ardrossan |
| Zirfea crispata | Lunderston |
