A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.

by Charles Darwin

[Plate XIV., figure 6 o.]

[Plate XIV., figure 6 p.]

[Plate XIV., figure 6 q.]

[Plate XIV., figure 6 r.]