Nematocarcinoidea is a superfamily of

shrimp Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are refer ...

, comprising four families –

Eugonatonotidae ''Eugonatonotus'' is a genus of decapods and is the only genus in the monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include ...

Nematocarcinidae Nematocarcinidae is a family of crustaceans belonging to the order Decapoda The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crabs, lobsters, ...

Rhynchocinetidae The family Rhynchocinetidae are a group of small, reclusive red-and-white shrimp. This family typically has an upward-hinged foldable rostrum, hence its taxon name ''Rhynchocinetidae'', which means ''movable beak''; this gives these shrimps their ...

and

Xiphocarididae ''Xiphocaris'' is a genus of crustaceans belonging to the monotypic family Xiphocarididae. The species of this genus are found in the Caribbean The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a re ...

. They share the presence of strap-like epipods on at least the first three pairs of

pereiopod The decapod (crustaceans such as a crab, lobster, shrimp or prawn) is made up of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment may possess one pair of appendages, although in various g ...

s, and a blunt molar process.

References

External links

* * Caridea Taxa named by Sidney Irving Smith Arthropod superfamilies {{Caridea-stub