Shell growth and morphogenesis were studied in nine species of Bivalvia from the viewpoint of theoretical morphology. The aperture map, or pattern of relative rate of shell accretion for each point ...

Field investigations of living bivalves of the order Arcoida led to the rediscovery of a contradiction to the longstanding three-fold, three-function concept of bivalve mantle edges. In contrast to ...

Unionid shells are characterized by an outer aragonitic prismatic layer and an inner nacreous layer. The prisms of the outer shell layer are composed of single-crystal fibres radiating from ...

"This is the first supplement to the Catalogue and Bibliography of the Marine Shell-bearing Mollusca of Japan ... published in 1999"--P. 4. siris_sil_675669 ...