Constant mean curvature cylinders in euclidean 3-space
These constant mean curvature cylinders [3,2] have spectral genus two like the Wente tori, though only one period is closed. Their metric is given in terms of Jacobi elliptic functions [1,4].
References
U. Abresch, Constant mean curvature tori in terms of elliptic functions, J. Reine Angew. Math.374(1987), 169—192 [876223].
K. Grosse-Brauckmann, Bifurcations of the nodoids, Oberwolfach Report 24/2007, Progress in surface theory(2007).
R. Mazzeo and F. Pacard, Bifurcating nodoids, Topology and geometry: commemorating SISTAG, Contemp. Math., Amer. Math. Soc., Providence, RI(2002), 169—186 [1941630].
R. Walter, Explicit examples to the H-problem of Heinz Hopf, Geom. Dedicata23(1987), no. 2, 187—213 [892400].