Heterobranchia Burmeister, 1837
Sacoglossa Ihering, 1876
Family: Oxynoida Stoliczka, 1868 |
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Family: Plakobranchidae Gray, 1840 |
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Family: Hermaeidae H. & A. Adams, 1854 |
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Hermaea paucicirra Pruvot-Fol, 1953 |
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Family: Limapontiidae Gray, 1847 |
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Family: Volvatellidae Pilsbry, 1895 |
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