Description
No oral structures ; silver-line system I ike Tetrahy mena ; body pyriform or ovoid ; obligate parasites of molluscs , turbellarians ; two genera .
Type species
Figures
No linked figures.
Raw text
No oral structures ; silver-line system I ike Tetrahy mena ; body pyriform or ovoid ; obligate parasites of molluscs , turbellarians ; two genera .