Back سيفالاسبيديا ARZ Cephalaspidea CEB Kopfschildschnecken German Cephalaspidea Spanish Cephalaspidea French Cephalaspidea Italian 두순류 Korean Cephalaspidea Dutch Boblesnegler NB Chʼoshłóóʼ bitsiiʼ dikʼání NV
| Headshield slugs | |
|---|---|
| |
| A live individual of Chelidonura varians in the family Aglajidae, head end towards the lower left | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Cohort: | Tectipleura |
| Order: | Cephalaspidea |
| Superfamilies | |
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See text | |
The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine gastropod mollusks within the larger clade Euopisthobranchia.[1] Bubble shells is another common name for these families of marine gastropods, some of which have thin bubble-like shells.[2] This clade contains more than 600 species.[3]
Members of this worldwide clade used to be considered the most ancestral of the opisthobranchs, but now they are considered as derived and specialized members of the Euthyneura Spengel, 1881.[4]
Headshield slugs are the most morphologically diverse group of all the opisthobranchs.[citation needed]
- ^ Jörger, Katharina M; Stöger, Isabella; Kano, Yasunori; Fukuda, Hiroshi; Knebelsberger, Thomas; Schrödl, Michael (2010). "On the origin of Acochlidia and other enigmatic euthyneuran gastropods, with implications for the systematics of Heterobranchia". BMC Evolutionary Biology. 10 (1): 323. Bibcode:2010BMCEE..10..323J. doi:10.1186/1471-2148-10-323. PMC 3087543. PMID 20973994.
- ^ Dance, S. P. (1996). Shells. The visual guide to over 500 species of seashell from around the world. Dorling Kindersley. pp. 200–203. ISBN 0-86318-811-7.
- ^ Cite error: The named reference
Oskarswas invoked but never defined (see the help page). - ^ Wägele, Heike; Klussmann-Kolb, Annette; Verbeek, Eva; Schrödl, Michael (2014). "Flashback and foreshadowing—a review of the taxon Opisthobranchia". Organisms Diversity & Evolution. 14: 133–149. doi:10.1007/s13127-013-0151-5.