ülemperekond

Eesticonus Peel, 2024

Taksoni kirjeldused

Peel, 2024

Univalve, with oval aperture and height about two-thirds of length; early growth stage laterally compressed. Apex located at about one-quarter of length measured from sub-apical margin. Sub-apical surface shallowly concave, supra-apical surface very shallowly convex. Shell thin, with fine comarginal growth lines crossed by closely spaced, sharp radial ridges. Semi-continuous muscle attachment scar located on internal mould at about one-third of distance from apex to aperture.

Leitud liigid