Gelasimus (Acanthoplax) excellens Gerstacker, 1856, is a junior synonym of Uca insignis (Milne Edwards, 1852). This synonymy was identified by Rathbun, but she mixed some specimens of Uca ornata and Uca insignis together. The type of excellens does not appear to be extant, but if it was found and turned out to be a synonym for Uca ornata (Smith, 1870), it would have priority.