pantastomata

from The Collaborative International Dictionary of English v.0.48

Pantastomata \Pan`ta*stom"a*ta\
   (p[a^]n`t[.a]*st[o^]m"[.a]*t[.a]), n. pl. [NL., fr. Gr. pa^s,
   panto`s, all + sto`ma, sto`matos, mouth.] (Zool.)
   One of the divisions of Flagellata, including the monads and
   allied forms.
   [1913 Webster]