FIGURE 6 in A new deep­sea pectinid bivalve from thermal vents of Manus back­arc Basin (south­western Pacific), Sinepecten segonzaci n. gen., n. sp. (Pectinoidea: Pectinidae), and its relationships with the genera Bathypecten and Catillopecten

FIGURE 6. Ontogeny of right valve anterior auricle and byssal notch. The specimens sp. 2 to sp. 6 (a) are laid flat. Byssal notch of sp. 6 is hidden in (a); in (b) sp. 6 is tilted forward to make it conspicuous. Behind the right valve, the left valve is present, umbonal part stippled, internal surface black. Horizontal lines: hollow of byssal fasciole