A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.
Charles Darwin
Страница - 449
Страница - 451
[Plate XIII., figure 4
a
.]
[Plate XIII., figure 4
b
.]
[Plate XIII., figure 5
a
.]
