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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.
Find Viviparidae information at
To cite this page: 2000. "Viviparidae" (On-line), Animal Diversity Web. Accessed February 12, 2012 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Viviparidae.html
Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.
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