Wavy brush strokes with a fan brush organized themselves in concentric arcs.
The elegant spiral of the nautilus is nowhere to be seen. This may have been the deciding evolutionary factor that made the snail pictured below, a killer. Its form does not indicate function; it has to fight for every morsel. It’s disposition is most neutral below the mud where it is least uncomfortable; the killer waits for the next unfortunate to happen by, anger flares, and it strikes.