A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.
Charles Darwin
Страница - 421
Страница - 423
[
ACASTA.
]
Plate X.
[Plate X., figure 1
a
.]
[Plate X., figure 1
b
.]
