# Aplustridae

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{{Short description|Family of gastropods}}
{{Automatic taxobox
| name = Aplustridae
| image = Micromelo undatus Réunion.jpg
| image_caption = Live couple of ''[Micromelo undatus](/source/Micromelo_undatus)''
| taxon = Aplustridae
| authority = [Gray](/source/John_Edward_Gray), 1847
| subdivision_ranks = Genera
| subdivision = See text.
| synonyms =
* Aplustrinae <small>J. E. Gray, 1847</small> superseded rank
* Bullinidae <small>Gray, 1850</small>
* Hydatinidae <small>Pilsbry, 1895</small> (inv.)
* † Nonacteoninidae B<small>andel, 1994</small> 
* † Sulcoactaeonidae <small>Gründel, 1997</small> 
}}

The '''Aplustridae''' is a [taxonomic](/source/Taxonomy_(biology)) [family](/source/Family_(taxonomy)) of [sea snail](/source/sea_snail)s or bubble snails, [marine](/source/Marine_(ocean)) [gastropod](/source/gastropod) [mollusk](/source/mollusk)s in the superfamily [Acteonoidea](/source/Acteonoidea).<ref name="WoRMS">{{WRMS species|411859|Aplustridae Gray, 1847||8 January 2019}}</ref>

The former name of this family, Hydatinidae <small>(Pilsbry, 1893)</small> has been declared invalid.<ref>Bouchet, P.; Rocroi, J.-P. (Ed.); Frýda,J.; Hausdorf,B.; Ponder, W.; Valdes, A.; Warén, A. (2005). Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. {{ISBN|3-925919-72-4}}. 397 pp</ref>

==Description==
The soft parts of animals in this family are brightly colored.

The oval bubble-shaped shell is thin and fragile and has a sunken spire. The shell is white or beige-colored with colored bands or stripes.

There is no [operculum](/source/Operculum_(gastropod)).

==Life habits==
The soft parts of the animal cannot retract completely into the shell, and therefore these animals depend for their defense on swimming and camouflage. They are specialised feeders, eating cirratulinid [polychaete worm](/source/polychaete_worm)s.

== Genera ==
Genera within the family Aplustridae include:<ref name="WoRMS"/>
* ''[Aplustrum](/source/Aplustrum)'' <small>Schumacher, 1817</small>
* ''[Bullina](/source/Bullina)'' <small>A. Férussac, 1822</small>
* ''[Espinosina](/source/Espinosina)'' <small>Ortea & Moro, 2017</small>
* ''[Hydatina](/source/Hydatina)'' <small>Schumacher, 1817</small>
* ''[Micromelo](/source/Micromelo)'' <small>Pilsbry, 1895</small>
* ''[Rictaxiella](/source/Rictaxiella)'' <small>Habe, 1958</small>
* † ''[Sulcoactaeon](/source/Sulcoactaeon)'' <small>Cossmann, 1895</small> 

<gallery style="text-align:center;" mode="packed">
Image:Aplustrum amplustre.JPG|''[Hydatina amplustre](/source/Hydatina_amplustre)''
Image:Hydatina albocincta - Royal Ontario Museum - DSC00204.JPG|''[Hydatina albocincta](/source/Hydatina_albocincta)''
Image:Hydatina physis Réunion.JPG|''[Hydatina physis](/source/Hydatina_physis)''
Image:Hydatina zonata shell.jpg|''[Hydatina zonata](/source/Hydatina_zonata)''
Image:Micromelo guamensis.jpg|''[Micromelo guamensis](/source/Micromelo_guamensis)''
Image:Micromelo undata.jpg|''[Micromelo undatus](/source/Micromelo_undatus)''
</gallery>

== References ==
{{Commons category|Aplustridae}}
{{Wikispecies|Aplustridae}}
{{Reflist}}
* Rudman, W.B. (1972) "The anatomy of the opisthobranch genus ''Hydatina'' and the functioning of the mantle cavity and the alimentary canal". ''Zoological Journal of the Linnean Society'' '''51(2)''': 121-139
* Vaught, K.C.; Tucker Abbott, R.; Boss, K.J. (1989). A classification of the living Mollusca. American Malacologists: Melbourne. {{ISBN|0-915826-22-4}}. XII, 195 pp
* Guangyu, 1997. Fauna Sinica Phylum Mollusca Class Gastropoda Subclass Opisthobranchia Order Cephalaspidea. 225pp., 28pls. (3col.pls.), 35 figs
* [Powell A W B](/source/Arthur_William_Baden_Powell), ''New Zealand Mollusca'', [William Collins Publishers Ltd](/source/HarperCollins), Auckland, New Zealand 1979 {{ISBN|0-00-216906-1}}
* Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. & Strong E.E. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61(1-2): 1-526

{{Taxonbar|from=Q3175417}}

Category:Aplustridae
Category:Taxa named by John Edward Gray

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Adapted from the Wikipedia article [Aplustridae](https://en.wikipedia.org/wiki/Aplustridae) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Aplustridae?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.