Campylonotoidea is a superfamily of

shrimp A shrimp (: shrimp (American English, US) or shrimps (British English, UK)) is a crustacean with an elongated body and a primarily Aquatic locomotion, swimming mode of locomotion – typically Decapods belonging to the Caridea or Dendrobranchi ...

, containing the two families

Campylonotidae ''Campylonotus'' is a genus of true shrimp belonging to the monotypic family Campylonotidae. The species of this genus are found in southernmost Southern Hemisphere and are as follows: References Decapod genera {{caridea-stub ...

and

Bathypalaemonellidae Bathypalaemonellidae is a family of crustaceans belonging to the order Decapoda The Decapoda or decapods, from Ancient Greek δεκάς (''dekás''), meaning "ten", and πούς (''poús''), meaning "foot", is a large order of crustaceans ...

. Fenner A. Chace considered it to be the

sister group In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and ...

to the much larger superfamily

Palaemonoidea Palaemonoidea is a large superfamily of shrimp, containing nearly 1,000 species. The position of the family Typhlocarididae is unclear, although the monophyly of a group containing the remaining seven families is well supported. * Anchistioidid ...

, with which it shares the absence of endopods on the pereiopods, and the fact that the first pereiopod is thinner than the second. Using

molecular phylogenetics Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

, Bracken ''et al.'' proposed that Campylonotoidea may be closer to Atyoidea. There are sixteen described species in 3 genera; no fossils are known. *

Sollaud, 1913 **''

Campylonotus ''Campylonotus'' is a genus of true shrimp belonging to the monotypic family Campylonotidae. The species of this genus are found in southernmost Southern Hemisphere and are as follows: References Decapod genera {{caridea-stub ...

'' Bate, 1888 *

de Saint Laurent, 1985 **'' Bathypalaemonella'' Balss, 1914 **'' Bathypalaemonetes'' Cleva, 2001

References

Caridea Arthropod superfamilies {{Caridea-stub