This survey provides an updated, systematic catalogue documented with bibliographic and pictorial references on the extant marine Mollusca of the Hellenic Seas by January 2023. Ιt adds 55 extra species for the area and 3 new species for science to the previous taxa register. It incοrporates 1479 species belonging to 271 families and referred to in 196 publicatons.

To be added:
Graphis albida
Axinulus alleni
Genaxinus eumyarius
Draculamya uraniae
Epilepton parrussetense
Kelliopsis jozinae
Emarginula decorata
Copulabyssia tenuis
Dikoleps micalii
Cerithidium submammillatum
Ionthoglossa pseudocanarica
Cerithiopsis carlottae
Cerithiopsis oculisfictis
Cerithiopsis nana
Alvania aartseni
Alvania amati
Alvania aspera
Alvania balearica
Alvania bozcaadensis
Alvania clarae
Alvania clathrella
Alvania colossophilus
Alvania dalmatica
Alvania datchaensis
Alvania dictyophora
Alvania disparilis
Alvania dorbignyi
Alvania elisae
Alvania esmes
Alvania fractospira
Alvania geryonia
Alvania hallgassi
Alvania hispidula
Alvania josefoi
Alvania lanciae
Alvania litoralis
Alvania lucinae
Alvania marmarisensis
Alvania oetyliaca
Alvania pagodula
Alvania rudis
Alvania scabra
Alvania schwartziana
Alvania scuderii
Alvania sororcula
Alvania subareolata
Alvania subcrenulata
Alvania villarii
Alvania zetlantica
Botryphallus epidauricus
Crisilla beniamina
Crisilla chiarellii
Crisilla maculata
Crisilla marioni
Crisilla ramosorum
Obtusella macilenta
Peringiella elegans
Pusillina ehrenbergii
Pusillina marginata
Pusillina munda
Rissoa aartseni
Rissoa angustior
Rissoa auriformis
Rissoa electrae
Rissoa frauenfeldiana
Rissoa gemmula
Rissoa italiensis
Rissoa janusi
Rissoa scurra
Setia ambigua
Setia bruggeni
Setia fusca
Setia homerica
Setia lacourti
Setia scillae
Setia sciutiana
Setia slikorum
Setia turriculata
Voorwindia tiberiana
Trivia levantina
Tritia turulosa
Tritia tavernai
Babelomurex benoiti
Coralliophila brevis
Coralliophila sofiae
Ocenebra helleri
Ocenebra baetica
Ocinebrina aegeensis
Trophonopsis breviata
Granulina boucheti
Granulina gofasi
Granulina melitensis
Granulina torosa
Gibberula jansseni
Gibberula philippi
Gibberula simonae
Gibberula turgidula
Pusia hypatiae
Chauvetia affinis
Chauvetia candidissima
Chauvetia lineolata
Chauvetia procerula
Chauvetia ventrosa