M. (=Kurtziella) cerina has a small larval shell with a less acute apex, the spire nearly equal to the last whorl, with flattish whorls angulated at the periphery, nine swollen riblets, no varix, the notch well marked and away from the suture which is broadly appressed and undulated ; the canal is very short and the ribs arched when they extend over the fasciole, where they usually fail. The nuclear whorls are smooth except the last, which has three or four nodulous spiral lines on it. Lon. 6.75 mm; last whorl, 3.75 mm; lat. 2.1 mm.

North Carolina to Florida.