Shell small, subovate, almost spherical, rather thin, translucent to transparent. The protoconch is smooth and has a little more than one whorl, about 270 µm in diameter, a nucleus of about 60 µm separated by a clear line. The teleoconch has about 2.5 convex whorls, which are smooth except for numerous prosocline growth lines; suture evident. Aperture ovoid, outer lip thin, columella slightly curved, peristoma continuous. Umbilicus narrow.
The colour is pink with a brown band in the middle of the penultimate whorl and three brown bands on the last whorl: the upper band is in the middle of the whorl, a little closer to the lower suture; the second band is near the lip insertion and is more marked and darker; the third one is around the umbilicus and is even wider. Dimensions: the holotype is 0.9 in height and 0.67 mm in diameter. The other shells are of a similar size, with a maximum size of 1 mm.

The newly described species may be distinguished from the two previously known species belonging to this genus:
• E. laurensi has a more elongate shape, the colour pattern is very different and more irregular, with numerous S-shaped brown axial lines, the base and the umbilical area, including the columella, are strongly brown-coloured, and the aperture is more rounded.
• E. caribaea has a very consistent colour pattern consisting of two fine brown lines on the last whorl, whereas the umbilicus and the columella are white. Its protoconch has only one whorl, is smaller (200 µm) and has a tiny spiral sculpture.

Distribution: Only known from the type locality. Type locality: Cuba, Pinar del Rio, Ensenada de Guadiana. In seagrass Thalassia testudinum. Coordenates 22°05.030'N, 84°27.33FW.