| 11. | For example, the great majority of tunicates, pulmonate snails, opisthobranch snails and slugs are hermaphrodites.
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| 12. | "' Cymbulioidea "'is a taxonomic holoplanktonic opisthobranch gastropod molluscs in the clade Thecosomata.
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| 13. | "' Murchisonellidae "'is a taxonomic marine opisthobranch gastropod mollusks in the superfamily Murchisonelloidea.
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| 14. | Torsion is present in all gastropods, but the opisthobranch gastropods are secondarily de-torted to various degrees.
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| 15. | "' Metarminoidea "'is a provisional taxonomic marine opisthobranch gastropod molluscs in the clade Nudibranchia.
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| 16. | Most acochlidians live interstitially in marine sands, while some have conquered limnic systems ( uniquely within opisthobranch gastropods ).
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| 17. | Because the Pulmonata are a sibling group to an opisthobranch monophyletic group and can no longer be accepted as a valid taxon.
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| 18. | He authored more than 115 scientific papers and books, including a two-volume Ray Society monograph on British opisthobranch molluscs.
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| 19. | The "'Laginiopsidae "'are a taxonomic marine opisthobranch gastropod mollusks in the suborder Gymnosomata, the sea angels.
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| 20. | Nevertheless, a few of the older terms such as " opisthobranch " and " prosobranch " are still sometimes used in a descriptive way.
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