Trinoid. A completely new discovery, made by Nick Schmitt in 1999, shows that there appear to be CMC surfaces with the topology of a triply punctured sphere but with nodoidal ends. This surface has one nodoidal end. Notice it points in the opposite direction to that expected for an unduloidal end. This is because the neck radius of a nodoid is formally negative so the force balancing requires the end axis to point in the opposite direction. Roughly speaking, while unduloidal ends "pull" at the sphere, nodoidal ends "push".