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. / 43. BALANUS UNGUIFORMIS. Pl. 8, fig. 8 a-8 b.

43. BALANUS UNGUIFORMIS. Pl. 8, fig. 8 a-8 b.

A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · Charles Darwin · 第 51 / 136 章