Abstract
We redescribe the name-bearing types of Helicops wettsteini Amaral, 1929, a species described from central Costa Rica. However, while Helicops wettsteini has been considered in the literature a synonym of Hypsiscopus plumbeus (previously Enhydris plumbea), we present here morphological evidence for considering Helicops wettsteini a synonym of the recently described species Hypsiscopus murphyi Bernstein, Voris, Stuart, Phimmachak, Seateun, Sivongxay, Neang, Karns, Andrews, Osterhage, Phipps & Ruane, 2022, which hence becomes a junior subjective synonym of Hypsiscopus wettsteini (Amaral, 1929).
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