Geotria species distribution. General distribution (light blue) and recorded collections for each Geotria species (G. australis [dark blue points] and G. macrostoma [green points indicate recorded collection; yellow points indicate previous G. australis collection now considered G. macrostoma]). South American distribution interpreted from Neira (1984), Nardi et al. (2020), Riva-Rossi et al. (2020), and VertNet (2019); South Georgia distribution interpreted from Ivanova-Berg (1968); Australian distribution interpreted from Atlas of Living Australia (ALA 2020), and Morgan et al. (1998); and New Zealand distribution interpreted from NIWA New Zealand Freshwater Fish Database (Crow 2017).