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. / 3. BALANUS PSITTACUS. Pl. 2, fig. 3 a-3 d.

3. BALANUS PSITTACUS. Pl. 2, fig. 3 a-3 d.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · Charles Darwin · 第 20 / 136 章