Abstract

A new species is described from the coast of Chile, Anchistylis watlingi. The new species can be discriminated from all other species of Anchistylis by the presence of a scalloped ridge from the dorsum to the anteroventral corner. The new species is most similar to A. notus Lomakina 1968 from Argentina, and A. waitei Hale 1945 from Australia. The new species has been collected from multiple locations, from the south of Chile to the north, corresponding roughly to the Peru-Chile marine biogeographic province, in depths from 0-30 m. A key to the species of Anchistylis is included.