Mermesa
In Greek mythology, Mermesa was one of the names attested on a greek vase as part of the seven Hesperides and sister of Aiopis, Antheia, Donakis, Kalypso, Nelisa and Tara. Notes

References 

 Walters, Henry Beauchamp, History of Ancient Pottery, Greek, Etruscan, and Roman, Based on the Work of Samuel Birch, Volume 2, London, J. Murray, 1905. Hesperides
Nymphs