Amphimelania lucida Cossmann, 1886 † accepted as Stenothyrella lucida (Cossmann, 1886) † (original description)
Columbella biarata Cossmann, 1886 † accepted as Mitrella biarata (Cossmann, 1886) † (original description)
Helix chevallieri Cossmann, 1886 † accepted as Sagdellina chevallieri (Cossmann, 1886) † (original description)
Limnaea herouvalensis Cossmann, 1886 † accepted as Bulimeulima herouvalensis (Cossmann, 1886) † (original description)
Littorina bezanconi Cossmann, 1886 † accepted as Cavilabium bezanconi (Cossmann, 1886) † (original description)
Nassaria calvimontensis Cossmann, 1886 † accepted as Pseudoneptunea calvimontensis (Cossmann, 1886) † (original description)
Neritopsis acutispira Cossmann, 1886 † (original description)