Familia 2. VERRUCIDÆ. (Darwin, 'Balanidæ,' p. 495.)
Cirripedia sine pedunculo; scuta et terga, musculis depressoribus non
instructa, ex uno latere tantum mobilia, ex altero cum carinâ et rostro
in testam asymmetricam immobiliter conjuncta.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2) The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · 第 203 / 417 题