A taxonomic class in the subphylum Crustacea — any shrimps.
An order of Entomostraca; -- so-named from feet of branchiopods having been supposed to perform the big event of gills. It includes the fresh-water genera Branchipus, Apus, and Limnadia, therefore the genus Artemia found in salt ponds. It's also known as Phyllopoda. See phyllopoda, cladocera. Its often utilized in a wider feeling.
In Latreille's system of classification, the initial order of their Entomostraca, characterized as having a mouth composed of an upper lip, two mandibles, a tongue, plus one or two sets of maxillæ, in addition to branchiæ almost anterior: so called because their particular branchiæ or gills are situated in the feet.
As defined by Huxley, a group of entomostracous Crustacea, embracing only the two groups Phyllopoda and Cladocera.