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. / 9. ACASTA SPORILLUS. Pl. 9, fig. 9 a-9 d.

9. ACASTA SPORILLUS. Pl. 9, fig. 9 a-9 d.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · Charles Darwin · 第 54 / 136 章