Shell small, dimensions between 0.4 and 0.6 mm, brilliant, translucent, of yellow colour with a brown line on each side of the shell and one additional at the periphery.
Protoconch of 1 whorl, bearing a prominent smooth cord, bordered by a narrow canal on its outside. Teleoconch between 1 and 1,5 whorls, showing a prominent cord at each side, near the convex angle of the shell. In the whole teleoconch are present irregular, fragile and variable narrow ridges which cross the cords forming weak elevations. These ribs are slightly marked in the convexity, which is uniformly curved. Four spiral grooves are present at the periphery. Aperture is circular. Etymology. The specific name refers to the coloured cord and the peripheral grooves which run around the spire.

The general shell sculpture may have a similar aspect as in A fischeriana, A rotundata or A familiaris sp. n. but the grooves at the periphery perfectly differentiate A circumcirra sp. n. from its congeners.