Species (5.943)
- Rissoa gergonia
- Rissoa guerini
- Rissoa inconspicua Alder
- Rissoa interrupta
- Rissoa lachesis
- Rissoa misera
- Rissoa octona
- Rissoa oenonensis
- Rissoa plicatula
- Rissoa radiata
- Rissoa porifera
- Rissoa reticulata
- Rissoa rufilabrum
- Rissoa sarsii
- Rissoa simplex
- Rissoa striata
- Pyrene aureola
- Pyrene rosacea
- Pyrgohydrobia grochmalickii Polinski
- Pyrgula croatica
- Pyrgula incisa
- Pyrgula angulata
- Pyrgula formosa
- Purpura coronata
- Purpura lapillus
- Putilla gottscheana
- Putilla westfalica
- Raphitoma philberti
- Raphitoma multilineolata
- Raphitoma purpurea
- Raphitoma polita
- Raphitoma quadrillum
- Raphitoma reticulata
- Anomalosipho verkrüzeni
- Arcularia reticulata
- Aphanitoma alternans
- Aphanitoma marginata
- Aphaostracon asthenes
- Aporrhais alata
- Aporrhais occidentalis
- Aporrhais pes ssp. pelecani
- Apollon giganteus
- Aporrhais serresianus Michaud 1828
- Aphaostracon monas
- Aphaostracon pycnas
- Aphaostracon xynoeiictus
- Cyclostoma adjunctum
- Cyclostoma articulatum
- Cyclostoma bewsheri
- Cyclostoma calcareum
- Cyclostoma bicolor
- Cyclostoma bipartitum
- Cyclostoma canariense
- Cyclostoma deliciosum
- Cyclostoma desmazuresi
- Cyclostoma forveolatum
- Cyclostoma goudotianum
- Cyclostoma insulare
- Cyclostoma hildebrandti
- Cyclostoma haemastoma
- Cyclostoma kraussianum
- Crepidula perforans
- Crepidula onyx
- Crepidula rugosa
- Crepidula unguiformis
- Crepipatella lingulata
- Cryptonatica johnstrupi
- Cryptonatica affinis
- Cryptonatica clausa
- Cryptonatica occlusa
- Cryptonatica pomum
- Cryptonatica wenzi
- Cryptonatica rimalis
- Crassispira borealis
- Crepidula adunca
- Crepidula crepidula Linnaeus 1764
- Cytherea mediterranea
- Alvania canariensis
- Alvania fischeri
- Cyllene chrysostoma
- Cyllene concinna
- Cyllene glabrata
- Cyllene fuscata
- Cyllene gibba
- Cyllene guillaini
- Cymatium doliaroides
- Cymatium variegatum
- Cymbium cidium
- Cymbium diadema
- Cymbium flammeum
- Cymbium papillatum
- Cyllene lactea
- Cyllene grayi
- Cyllene lugubris
- Cyllene lyrata
- Cyllene orientalis
- Cyllene obliqua
- Cyllene oweni
- Cyllene pallida
- Cyllene rubrolineata