Carybdeida
{{Short description|Order of jellyfishes}}
{{Automatic taxobox
| image = Tripedalia-cystophora.png
| image_caption = Tripedalia cystophora
| taxon = Carybdeida
| authority = Gegenbaur, 1857
| subdivision =
| synonyms =
- Cubomedusae Haeckel, 1880
}}
Carybdeida is an order of box jellyfish.{{ITIS |id=718929 |taxon=Carybdeida}} It contains five families.{{cite journal |title=Evolution of box jellyfish (Cnidaria: Cubozoa), a group of highly toxic invertebrates |date=2010 |last1=Bentlage |first1=Bastian |last2=Cartwright |first2=Paulyn |last3=Yanagihara |first3=Angel A. |last4=Lewis |first4=Cheryl |last5=Richards |first5=Gemma S. |last6=Collins |first6=Allen G. |journal=Proceedings of the Royal Society B: Biological Sciences |volume=277 |issue=1680 |pages=493–501 |doi=10.1098/rspb.2009.1707 |pmid=19923131 |pmc=2842657 }} They are distinguished from other box jellyfish by possessing unbranched muscular bases at the corners of the cubic umbrella.{{cite journal | last = Daly | first = Marymegan | title = The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus | journal = Zootaxa | issue = 1668 | pages = 127–182 | year = 2007 | url = https://www.mapress.com/zootaxa/2007f/zt01668p182.pdf|display-authors=etal |doi=10.11646/zootaxa.1668.1.11 }} Most species have four tentacles.