solenogastra

from The Collaborative International Dictionary of English v.0.48

Solenogastra \So*le`no*gas"tra\, n. pl. [NL., from Gr. ????
   channel + ????, ????, stomach.] (Zool.)
   An order of lowly organized Mollusca belonging to the
   Isopleura. A narrow groove takes the place of the foot of
   other gastropods.
   [1913 Webster]