FIGURE 4. Corbula tryoni Smith, 1880. A–D. lectotype designated herein BMNH 1879.10.15.165-170 in Taxonomic revision of the recent marine Corbulidae (Mollusca, Bivalvia) from Brazil

FIGURE 4. Corbula tryoni Smith, 1880. A–D. lectotype designated herein BMNH 1879.10.15.165-170/1. 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–K. CIB 1129. E. external view of left valve. F. internal view of left valve. G. external view of right valve. H. internal view of right valve. I. external view of left valve, closed shell. J–K. left valve hinge of shells with different thickening; note the resilium-like pit attached to lower surface of chondrophore in 2K. L–M. CIB 1127 specimen in pre-accretion stage. L. external view of left valve. M. external view of right valve. N. CIB 1129, dorsal view. Scale bars: A–I, N= 2 mm; J–M = 1mm. Legend: c= chondrophore. cs= cardinal socket. ct= cardinal tooth; k= knob; ke= keel; lsp= lateral siphonal plate; n= nepioconch; p= resilial-like pit; pl= pallial line; ps= pallial sinus; rs= resilial socket.