Ammonicera fischeriana
Ammonicera fischeriana is a species of minute sea snail, a marine gastropod mollusc in the family Omalogyridae.
Description
The length of the shell attains 0.8 mm.A very small, discoidal, planorbiform shell, coiled in a single plane, symmetrical, and transparent. It is decorated with fine growth striations visible only under magnification.
The shell exhibits a whitish coloration accented by three equidistant reddish-brown bands: one near the top, one in the middle, and one at the bottom. It has four regularly coiled whorls, with the body whorl rounded. The aperture is circular, with a simple peristome that is neither reflected nor thickened.