Segmentina

A genus of freshwater pulmonate snails (family Planorbidae, subfamily Segmentininae); includes the species S. hemisphaerula, an important intermediate host of Fasciolopsis buski. [L. segmentum, fr. seco, to cut]

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Seg·men·ti·na .seg-mən-'tī-nə n a genus of Asian freshwater snails of the family Planorbidae that are of medical importance as intermediate hosts of an intestinal fluke of the genus Fasciolopsis (F. buski)

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Seg·men·ti·na (seg″mən-tiґnə) a genus of freshwater snails of the family Planorbidae, native to eastern Asia. S. hemisphaeґrula, S. trochoiґdeus, and S. largillierґti are first intermediate hosts of the intestinal fluke Fasciolopsis buski.