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Bellamya sp., from Australia. In the Viviparidae (so named because they give birth to small young snails rather than laying eggs), males lack a normal penis, but instead use a modified right tentacle, which is stouter and usually shorter than the normal left tentacle.
2009/11/01 06:51:33.355 US/Eastern
To cite this page: 2000. "Viviparidae" (On-line), Animal Diversity Web. Accessed November 08, 2009 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Viviparidae.html.
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