| australia | | mytilus galloprovincialis | species | 131 | 0 |
| australia | new south wales | mytilus galloprovincialis | species | 8 | 0 |
| australia | queensland | mytilus galloprovincialis | species | 9 | 0 |
| australia | tasmania | mytilus galloprovincialis | species | 8 | 0 |
| australia | victoria | mytilus galloprovincialis | species | 7 | 0 |
| australia | western australia | mytilus galloprovincialis | species | 1 | 0 |
| brazil | | mytilus galloprovincialis | species | 1 | 0 |
| china | | mytilus galloprovincialis | species | 41 | 0 |
| china | hubei | mytilus galloprovincialis | species | 12 | 0 |
| croatia | | mytilus galloprovincialis | species | 11 | 0 |
| croatia | primorje-gorski kotar county | mytilus galloprovincialis | species | 0 | 2 |
| croatia | split-dalmatia county | mytilus galloprovincialis | species | 0 | 1 |
| denmark | | mytilus galloprovincialis | species | 1 | 0 |
| france | | mytilus galloprovincialis | species | 9 | 0 |
| france | bretagne region | mytilus galloprovincialis | species | 0 | 1 |
| france | corse region | mytilus galloprovincialis | species | 0 | 1 |
| france | languedoc-roussillon region | mytilus galloprovincialis | species | 1 | 1 |
| france | provence-alpes-cote d'azur region | mytilus galloprovincialis | species | 0 | 1 |
| france | rhone-alpes region | mytilus galloprovincialis | species | 0 | 1 |
| germany | lower saxony | mytilus galloprovincialis | species | 1 | 0 |
| greece | | mytilus galloprovincialis | species | 38 | 0 |
| greece | attica region | mytilus galloprovincialis | species | 89 | 0 |
| greece | central macedonia region | mytilus galloprovincialis | species | 8 | 2 |
| greece | north aegean region | mytilus galloprovincialis | species | 8 | 2 |
| greece | west greece region | mytilus galloprovincialis | species | 0 | 2 |
| italy | | mytilus galloprovincialis | species | 13 | 0 |
| italy | apulia region | mytilus galloprovincialis | species | 0 | 7 |
| italy | emilia-romagna region | mytilus galloprovincialis | species | 0 | 3 |
| italy | liguria region | mytilus galloprovincialis | species | 0 | 2 |
| italy | marche region | mytilus galloprovincialis | species | 0 | 1 |
| italy | sardinia autonomous region | mytilus galloprovincialis | species | 0 | 2 |
| italy | sicily autonomous region | mytilus galloprovincialis | species | 0 | 3 |
| italy | tuscany region | mytilus galloprovincialis | species | 0 | 3 |
| italy | veneto region | mytilus galloprovincialis | species | 1 | 0 |
| japan | | mytilus galloprovincialis | species | 3 | 0 |
| japan | fukushima prefecture | mytilus galloprovincialis | species | 8 | 0 |
| japan | hokkaido prefecture | mytilus galloprovincialis | species | 12 | 0 |
| japan | kagoshima prefecture | mytilus galloprovincialis | species | 0 | 1 |
| japan | kanagawa prefecture | mytilus galloprovincialis | species | 1 | 0 |
| japan | miyagi ken prefecture | mytilus galloprovincialis | species | 1 | 0 |
| japan | shizuoka prefecture | mytilus galloprovincialis | species | 1 | 0 |
| japan | tokyo prefecture | mytilus galloprovincialis | species | 1 | 0 |
| morocco | doukkala-abda | mytilus galloprovincialis | species | 0 | 2 |
| morocco | grand casablanca | mytilus galloprovincialis | species | 0 | 2 |
| morocco | souss-massa-draa | mytilus galloprovincialis | species | 0 | 1 |
| new zealand | | mytilus galloprovincialis | species | 17 | 0 |
| new zealand | auckland | mytilus galloprovincialis | species | 3 | 0 |
| new zealand | chatham islands | mytilus galloprovincialis | species | 2 | 0 |
| new zealand | northland | mytilus galloprovincialis | species | 7 | 0 |
| new zealand | otago | mytilus galloprovincialis | species | 0 | 1 |
| new zealand | wellington | mytilus galloprovincialis | species | 5 | 0 |
| norway | | mytilus galloprovincialis | species | 1 | 0 |
| portugal | | mytilus galloprovincialis | species | 5 | 0 |
| portugal | aveiro district | mytilus galloprovincialis | species | 0 | 2 |
| portugal | faro district | mytilus galloprovincialis | species | 0 | 1 |
| south africa | | mytilus galloprovincialis | species | 1 | 0 |
| south africa | northern cape province | mytilus galloprovincialis | species | 7 | 0 |
| south africa | the western cape province | mytilus galloprovincialis | species | 5 | 0 |
| south korea | | mytilus galloprovincialis | species | 1 | 0 |
| spain | | mytilus galloprovincialis | species | 38 | 0 |
| spain | asturias | mytilus galloprovincialis | species | 1 | 1 |
| spain | balearic islands | mytilus galloprovincialis | species | 0 | 1 |
| spain | basque country | mytilus galloprovincialis | species | 1 | 4 |
| spain | catalonia | mytilus galloprovincialis | species | 0 | 1 |
| spain | galicia | mytilus galloprovincialis | species | 17 | 16 |
| sweden | stockholm | mytilus galloprovincialis | species | 2 | 0 |
| tunisia | | mytilus galloprovincialis | species | 43 | 0 |
| turkey | | mytilus galloprovincialis | species | 21 | 0 |
| turkey | istanbul province | mytilus galloprovincialis | species | 0 | 2 |
| turkey | izmir province | mytilus galloprovincialis | species | 3 | 3 |
| turkey | kocaeli province | mytilus galloprovincialis | species | 0 | 2 |
| turkey | ordu province | mytilus galloprovincialis | species | 0 | 1 |
| turkey | samsun province | mytilus galloprovincialis | species | 0 | 1 |
| turkey | sinop province | mytilus galloprovincialis | species | 0 | 1 |
| united kingdom | | mytilus galloprovincialis | species | 1 | 0 |
| united kingdom | england | mytilus galloprovincialis | species | 0 | 1 |
| united states | california | mytilus galloprovincialis | species | 3 | 0 |
| united states | new york | mytilus galloprovincialis | species | 1 | 0 |