What is "heleobia"

Heleobia is a genus of small freshwater and brackish water snails with a gill and an operculum, aquatic gastropod mollusks in the family Cochliopidae and the superfamily Truncatelloidea.

Heleobia is one of three genera (together with Semisalsa and Heleobops) within the subfamily Semisalsinae. Some authors treate Semisalsa as a subgenus of Heleobia.