Pallial

[Sarah]

Of or pretaining to a mantle, especially to the mantle ofmollusks; produced by the mantle; as, the pallial line, orimpression, which marks the attachment of the mantle on the innersurface of a bivalve shell. See Illust. of Bivalve. Pallial chamber(Zoöl.), the cavity inclosed by the mantle.-- Pallial sinus (Zoöl.), an inward bending of the pallial line,near the posterior end of certain bivalve shells, to receive thesiphon. See Illust. of Bivalve.