Some, though, have conical shells, and these are often referred to by the common name of limpets.

The solid, conical shell is elevated, imperforate, and rather thick.

The small conical shell is 1.9 mm high and 1.0 mm wide.

The depressed conical shell is very deeply false-umbilicate and rather thin.

The sharply conical shell is elevated but still rather small : 5 - 20 mm.

The small, conical shell is imperforate, and rather solid but thin.

The conical, oblong shell is compact and contains no varices.

It had a chambered, conical shell, but lacked a siphuncle.

The straight, conical shell of Rayonnoceras had a smooth surface.

The conical shell is elevated, with a rather obtuse apex.