Identity of Eriocheir Recta (Stimpson, 1858) (Decapoda: Brachyura), with Description of a New Mitten Crab From Taiwan

Abstract

Eriocheir recta (Stimpson, 1858) is shown to be a junior synonym of E. japonica (de Haan, 1835). Specimens from Taiwan assigned to "E. recta" by other authors are shown to be an undescribed species, here named E. formosa, new species. To stabilize the confused taxonomy of these species, a neotype for E. recta is selected from material of E. japonica collected from near Macau. All known species and subspecies of Eriocheir de Haan, 1835, are illustrated and discussed.