Bdellomorpha

from The Collaborative International Dictionary of English v.0.48

Bdellomorpha \Bdel`lo*mor"pha\,n. [NL., fr. Gr. bde`lla leech +
   morfh` form.] (Zool.)
   An order of Nemertina, including the large leechlike worms
   ({Malacobdella}) often parasitic in clams.
   [1913 Webster]