Amnicolidae
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Amnicolidae is a family of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the superfamily Rissooidea.
Amnicola dalli shell
Truncatelloidea
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Truncatelloidea is a superfamily of snails, gastropod mollusks in the clade Caenogastropoda.
Amnicolidae
…next to it Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Subclass: Caenogastropoda Order: Littorinimorpha Superfamily: Truncatelloidea Family: Amnicolidae Tryon, 1863 Diversity About 200 freshwater species Synonyms Amnicolinae Tryon, 1863 superseded rank Erhaiini G. M. Davis & Y.-H…
Discopsis gruveli