A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.
Charles Darwin
Страница - 412
Страница - 414
[Plate VIII., figure 10
c
.]
George Sowerby.
[
BALANUS.
]
Plate IX.
