Genera within the family Cystiscidae include:
- † Topaginella Laseron, 1957:288
- Cystiscus Stimpson, 1865:55
- Crithe Gould, 1860:384
- Extra Jousseaume, 1894:98,101 - with the only species Extra extra Jousseaume, 1894; M
- Intelcystiscus Ortea and Espinosa, 2001
- Inbiocystiscus Ortea and Espinosa, 2001
- Ticocystiscus Espinosa and Ortea, 2002
- Granulina Jousseaume, 1888:191
- Pugnus Hedley, 1896:105-106
- Paolaura Smiriglio & Mariottini, 2001
- Persicula Schumacher, 1817
- Gibberula Swainson, 1840
- Canalispira Jousseaume, 1875:168,270
- Furcilla Espinosa & Ortea, 2000
- Furcilla tica Espinosa & Ortea, 2000; OD
- Plesiocystiscus Coovert & Coovert, 1995:66
- (M) - original designation by monotype
- OD - original designation
- OD (M) - original designation as type species, but also monotypic
- SD - subsequent designation as type
- SD (M) - subsequent designation as type species, but also monotypic
- T - original designation by tautonomy
Comparisons of shells of the genera:
Read more about this topic: Cystiscidae
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“Genius detects through the fly, through the caterpillar, through the grub, through the egg, the constant individual; through countless individuals the fixed species; through many species the genus; through all genera the steadfast type; through all the kingdoms of organized life the eternal unity. Nature is a mutable cloud which is always and never the same.”
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