protracheata

from The Collaborative International Dictionary of English v.0.48
Protracheata \Pro*tra`che*a"ta\, n. pl. [NL. See {Pro-}, and
   {Trachea}.] (Zool.)
   Same as {Malacopoda}.
   [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Malacopoda \Mal`a*cop"o*da\, prop. n. pl. [NL., fr. Gr. malako`s
   soft + -poda.] (Zool.)
   A class of air-breathing Arthropoda; -- called also
   {Protracheata}, and {Onychophora}.
   [1913 Webster]

   Note: They somewhat resemble myriapods, and have from
         seventeen to thirty-three pairs of short, imperfectly
         jointed legs, two pairs of simple jaws, and a pair of
         antennae. The trancheae are connected with numerous
         spiracles scattered over the surface of the body.
         {Peripatus} is the only known genus. See {Peripatus}.
         [1913 Webster]
    

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