Tylomelania gemmifera 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 occurs in one lake; the type locality is Lake Matano.
Description The shell has 9-10 whorls.
The width of the shell is . The height of the shell is . The width of the aperture is . The height of the aperture is .
References
External links von Rintelen T. & Glaubrecht M. (2005). "Anatomy of an adaptive radiation: a unique reproductive strategy in the endemic freshwater gastropod Tylomelania (Cerithioidea: Pachychilidae) on Sulawesi, Indonesia and its biogeographical implications." Biological Journal of the Linnean Society 85: 513–542. .