Tylomelania insulaesacrae

Tylomelania insulaesacrae is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae.

Distribution
This species occurs in Malili lakes, Sulawesi, Indonesia. It occur in the single lake and the type locality is the lake Towuti.

Description
The width of the shell is 8 mm. The height of the shell is 16 mm. The width of the aperture is 4 mm. The height of the aperture is 7.5 mm.