A Monograph on the Sub-class Cirripedia · Charles Darwin
PLATE 2.
_Genus_--BALANUS. Fig. 1 _a_, Balanus tintinnabulum,--_var._ communis, scutum. 1 _b_, " " " occator " 1 _c_, 1 _d_, and 1 _e_, " " " communis " 1 _f_, " " " coccopoma " 1 _g_, " " " concinnus " 1 _h_, (magnified) " " (_young_) " vesiculosus " 1 _i_, and 1 _k_, " " " communis, tergum. 1 _l_, " " " coccopoma " 1 _m_,and 1 _n_, " " " d'Orbignii " 1 _o_, " " " coccopoma " 2 _a_, 2 _b_, 2 _c_, 2 _d_, Balanus tulipiformis, scutum and tergum, external and internal views of. 3 _a_, 3 _b_, 3 _c_, 3 _d_, Balanus psittacus, scutum and tergum, external and internal views of. 4 _a_, 4 _b_, Balanus Capensis, scutum and tergum, internal view of. 5 _a_, 5 _b_, Balanus nigrescens " " 6 _a_, Balanus decorus, scutum, internal view; 6 _b_, tergum, external view. 7 _a_, Balanus vinaceus, scutum, internal view; 7 _b_, do. external view; 7 _c_, tergum, external view; 7 _d_, basal edge of the parietes of one of the compartments, showing the cancellated structure of the inner lamina.
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