首页 / 官方藏书 / A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. / 4. BALANUS CAPENSIS. Pl. 2, fig. 4 a, 4 b.

4. BALANUS CAPENSIS. Pl. 2, fig. 4 a, 4 b.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · Charles Darwin · 第 21 / 136 章