New material of <i>Psychrolutes sio</i> (Scorpaeniformes, Psychrolutidae) from the eastern Pacific of South America and comments on the taxonomy of <i>Psychrolutes inermis</i> and <i>Psychrolutes macrocephalus</i> from the eastern Atlantic of Africa
Psychrolutes sio Nelson, previously known only from the holotype and one small paratype, is redefine