C. afra, C. alabamiensis, C. angulata, C. ashleyi (syn. Ostrea hertleini, Ostrea altatemblorensis, Ostrea arnoldi), C. columbiensis, C. contracta, C. corteziensis, C. cucullaris, C. cuebana, C. cyathula (syn. Ostrea planicosta), C. cymaeformis, C. englekyi, C. eucorrugata (syn. Ostrea titan corrugata), C. gigas, C. gryphoides (syn. Somalidacna lamellosa), C. hatcheri, C. kawauchidensis, C. laperrinei, C. patagonica (syn. Ostrea ferrarisi), C. raincourti, C. rhizophorae, C. rutiformis, C. sikamea, C. soudanensis, C. tectonica, C. tenera, C. tetoriensis, C. titan (syn. Ostrea subjecta, Ostrea panzana, Ostrea ligminuta, Ostrea andersoni, Ostrea titan andersoni, Ostrea prior), C. transitoria (syn. Ostrea maxima), C. vaquerosensis, C. virginica

C. alabamensis, C. cymbaeformis, C. dichotoma, C. freudenbergi, C. rutriformis, C. transitor, C. tuberculata