The Collaborative International Dictionary of English v.0.48:

Taenioglossa \Tae`ni*o*glos"sa\, n. pl. [NL., fr. Gr. taini`a a
   ribbon + glw^ssa a tongue.] (Zool.)
   An extensive division of gastropod mollusks in which the
   odontophore is long and narrow, and usually bears seven rows
   of teeth. It includes a large number of families both marine
   and fresh-water.
   [1913 Webster]