The females of Tylomelania masapensis usually have 1-5 embryos in their brood pouch.[2] Newly hatched snails of Tylomelania masapensis have a shell height of 0.3-10.0 mm.[2]
References
^Kruimel J. H. (1913). "Verzeichnis der von Herrn E.C. Abendanon in Celebes gesammelten Süsswasser-Mollusken". Bijdragen tot de Dierkunde19: 217–235, page 218, plate 4, fig. 13.
^ abcdvon 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 Society85: 513–542. doi:10.1111/j.1095-8312.2005.00515.x.
^von Rintelen, Bouchet P. & Glaubrecht M. (2007). "Ancient lakes as hotspots of diversity: a morphological review of an endemic species flock of Tylomelania (Gastropoda: Cerithioidea: Pachychilidae) in the Malili lake system on Sulawesi, Indonesia". Hydrobiologia592:11-94. doi:10.1007/s10750-007-0765-8.