Checkered Nerite. Diameter 1/2-3/4 inches; height about
the same. 4 or 5 whirls are separated by indistinct sutures. The surface
is sculpted with some 12 rounded spiral ribs on each volution; with deep
narrow grooves in between. Numerous small teeth can be found on columellar
margin. Colour checkered black and white. This is a shallow water organism;
found along north and south shores with N. peloronta.