1. Species Turbella acuticosta Sacco, 1895 † accepted as Rissoa acuticosta (Sacco, 1895) † accepted as Rissoa federicoi Kovács & Stein, 2023 † (Turbella is an incorrect spelling of Turboella, which is a junior synonym of Rissoa)
2. Species Turbella degrangei Cossmann & Peyrot, 1919 † accepted as Turboella degrangei Cossmann & Peyrot, 1919 † accepted as Rissoa degrangei (Cossmann & Peyrot, 1919) † (Turbella is an incorrect spelling of Turboella, which is a junior synonym of Rissoa)
3. Species Turbella dubiosa Friedberg, 1923 † accepted as Turboella dubiosa Friedberg, 1923 † (Turbella is an incorrect subsequent spelling of Turboella)
4. Species Turbella inflexicosta Cossmann, 1921 † accepted as Turboella inflexicosta Cossmann, 1921 † accepted as Rissoa inflexicosta (Cossmann, 1921) † (Turbella is an incorrect spelling of Turboella, which is a junior synonym of Rissoa)
5. Species Turbella pachycolpa Cossmann, 1921 † accepted as Turboella pachycolpa (Cossmann, 1921) † (Turbella is an incorrect spelling of Turboella, which is a junior synonym of Rissoa)
6. Species Turbella perparva Friedberg, 1923 † accepted as Turboella perparva (Friedberg, 1923) † (Turbella is an incorrect subsequent spelling of Turboella)
7. Species Turbella podhorcensis Friedberg, 1923 † accepted as Turboella podhorcensis (Friedberg, 1923) † (Turbella is an incorrect subsequent spelling of Turboella)
8. Species Turbella tenuilineata Cossmann, 1921 † accepted as Turboella tenuilineata Cossmann, 1921 † accepted as Rissoa tenuilineata (Cossmann, 1921) † (Turbella is an incorrect spelling of Turboella, which is a junior synonym of Rissoa)
9. Species Turbella cowlitzensis Effinger, 1938 † (uncertain > unassessed)

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