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Tectibranchiata

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Tectibranchiata \Tec`ti*bran`chi*a"ta\, n. pl. [NL., fr. L.
   tectus (p. p. of tegere to cover) + Gr. ? a gill.] (Zo["o]l.)
   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.
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