A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.
Charles Darwin
Страница - 414
Страница - 416
[Plate IX., figure 2
a
.]
[Plate IX., figure 2
b
.]
[Plate IX., figure 2
c
.]
