Tylomelania centaurusTylomelania centaurus is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae.DistributionThis species occurs in Lake Poso, Sulawesi, Indonesia.DescriptionThe shell has 7.5 whorls. The height of the shell is. The width of an aperture is. The height of an aperture is.EcologyTylomelania centaurus is a lacustrine species.