An order of Entomostraca; -- so named from the
   feet of branchiopods having been supposed to perform the function of
   gills. It includes the fresh-water genera Branchipus, Apus, and
   Limnadia, and the genus Artemia found in salt lakes. It is also called
   Phyllopoda. See Phyllopoda, Cladocera. It is sometimes used in a
   broader sense.