FIGURE 1 in Taxonomic revision of the recent marine Corbulidae (Mollusca, Bivalvia) from Brazil

FIGURE 1. Schematic drawings representing the main taxonomic structures of Corbulidae. A–D. Corbula patagonica d'Orbigny, 1846 (in 1843–1847). A. external view of left valve. B. internal view of left valve. C. external view of right valve. D. internal view of right valve. E. left hinge of a very thick shell of Corbula tryoni Smith, 1880. Scale bars: A–D= 2 mm; E= 1 mm. Legend: bp= beak position; c= chondrophore; cs= cardinal socket; ct= cardinal tooth; h= height; k= knob; ke= keel; l= length; lsp= lateral siphonal plate; n= nepioconch; p= resilial-like pit; pl= pallial line; ps= pallial sinus; rs= resilial socket.