schizopoda

from WordNet (r) 3.0 (2006)

Schizopoda
    n 1: in former classifications a division of Malacostraca;
         superseded by the orders Mysidacea and Euphausiacea

from The Collaborative International Dictionary of English v.0.48

Schizopoda \Schi*zop"o*da\, n. pl., [NL. See {Schizo-}, and
   {-poda}.] (Zool.)
   A division of shrimplike Thoracostraca in which each of the
   thoracic legs has a long fringed upper branch (exopodite) for
   swimming.
   [1913 Webster]