Stromateoidei

Taxobox
name = Stromateoidei

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image_width = 200px
image_caption = Rudderfish "Centrolophus niger"
regnum = Animalia
phylum = Chordata
classis = Actinopterygii
ordo = Perciformes
subordo = Stromateoidei
subdivision_ranks = Families
subdivision = * Amarsipidae
* Ariommatidae
* Centrolophidae (medusafishes)
* Nomeidae (driftfishes)
* Tetragonuridae (squaretails)
* Stromateidae (butterfishes)

Stromateoidei is a suborder of the Perciformes, the largest order of fish. The suborder includes the medusafishes, Squaretails and driftfishes which associate with jellyfish, the latter families preying on them while the medusafish use them for protection while scavenging food scraps.