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

Perennibranchiata \Per*en`ni*bran`chi*a"ta\, n. pl. [NL. See
   {Perennial}, and {Branchia}.] (Zo["o]l.)
   Those Batrachia which retain their gills through life, as the
   menobranchus.