page_title: Tylomelania
section_title: Description
hierarchical_section_title: Tylomelania / Description
caption_attribution_description: English: Black and white photo of an apertural view of a shell of Tylomelania centaurus partly covered by a sponge Pachydictyum globosum Weltner. This shell is a holotype, NMB 1339a (Naturhistorisches Museum, Basel).&#91;1&#93; ↑ von Rintelen T. &amp; 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. doi:10.1111/j.1095-8312.2005.00515.x.
context_page_description: Tylomelania is a genus of freshwater snails which have an operculum, aquatic gastropod mollusks in the family Pachychilidae. In the aquarium hobby, snails from this genus are commonly known as "rabbit snails".
  A sister group of Tylomelania is genus Pseudopotamis. Tylomelania and Pseudopotamis split in the Middle Miocene c. 19.5 Mya.
context_section_description: In species within this genus, the albumen gland is very large. Pallial oviduct evolved into an uterine brood (that release shelled juvenile snails).
  Comparison of apertural views of shells of twenty Tylomelania species (images are not to scale):
caption: Tylomelania centaurus
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