FIGURE 6. Turneroconcha magnifica n in A new genus Turneroconcha (Bivalvia: Vesicomyidae: Pliocardiinae) for the giant hydrothermal vent clam 'Calyptogena' magnifica

FIGURE 6. Turneroconcha magnifica n. comb. (Boss & Turner, 1980), RV Western Flyer, dive D752, L=104 mm (IORAS, BIV00038-2). A, body as seen from left, gills and part of visceral mass removed. B, anterior part of body, gills intact. C, posterior part of body. D, posterior part of body, left wall of siphons removed. aa, anterior adductor muscle; alid, ascending lamella of inner demibranch; alod, ascending lamella of outer demibranch; alp, anterior labial palps; ap, anal papilla; apr, anterior pedal retractor muscle; au, auricle; dg, digestive gland; dlid, descending lamella of inner demibranch; es, exhalant siphon; fes, inner flap of exhalant siphon; fg, food groove; g, gonad; imf1, inner mantle fold 1; imf2, inner mantle fold 2; is, inhalant siphon; lm, pallial longitudinal muscle; mg, midgut; mvt, mantle thickening covered by ciliated epithelium; pa, posterior adductor muscle; ppr, posterior pedal retractor muscle; st, stomach; t, tentacles of mantle margin between siphons; timf3, tentacles of inner mantle fold 3; v, ventricle; vis, inner valve of inhalant siphon.