siphonostome

from The Collaborative International Dictionary of English v.0.48

Siphonostome \Si`pho*nos"tome\, n. [Gr. ??? a siphon + ???
   mouth.] (Zool.)
   (a) Any parasitic entomostracan of the tribe Siphonostomata.
   (b) A siphonostomatous shell.
       [1913 Webster]