Tectibranchiata

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Tectibranchiata \Tec`ti*bran`chi*a"ta\, n. pl. [NL., fr. L.
     tectus (p. p. of tegere to cover) + Gr. ? a gill.] (Zool.)
     An order, or suborder, of gastropod Mollusca in which the
     gills are usually situated on one side of the back, and
     protected by a fold of the mantle. When there is a shell, it
     is usually thin and delicate and often rudimentary. The


     aplysias and the bubble shells are examples.
     [1913 Webster]