A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.
Charles Darwin
Страница - 481
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[Plate XIX., figure 2
c
.]
[Plate XIX., figure 2
d
.]
[Plate XIX., figure 3
a
.]
