Melanatria Bowdich, 1822[2] Madagasikara is a genus of tropical freshwater snails with an operculum, aquatic gastropod molluscs in the family Pachychilidae.

[1] The generic name Madagasikara is from the Malagasy language and means "Madagascar".

[1] In systematic literature before 2010 the name Melanatria Bowdich, 1822 was generally used for this group.

Another name, which was used particularly in earlier taxonomic literature of the 19th century is Pirena Lamarck, 1799.

[1] Species within the genus Madagasikara include: This Pachychilidae-related article is a stub.