| Segmentina |
a genus of freshwater snails of the family Planorbidae, native to eastern Asia. S. hemisphae´rula, S. trochoi´deus, and S. largillier´ti are first intermediate hosts of the intestinal fluke Fasciolopsis buski.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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