Rhyncho*coe"lous

from The Collaborative International Dictionary of English v.0.48

Rhynchocoela \Rhyn`cho*coe"la\, n. pl. [NL., fr. Gr. "ry`gchos
   snout + koi`los hollow.] (Zool.)
   Same as {Nemertina}. -- {Rhyn`cho*coe"lous}, a.
   [1913 Webster]