ABSTRACT
The 36 non-endemic species may be partitioned according to the distribution outside of the area into four diff erent groups, which indicate existing or very recent migration between the focus area and marginal regions, or alternatively, that some non-endemic species are at the edge of their range: • 26 tropical Western Indian Ocean or widespread Indo-Pacific
species reach their southeastern limits in the Natal ecoregion of the Agulhas Province. If not otherwise mentioned the following records are based on Hoese, (1986a); Skelton, (2001) and Froese and Pauly, 2009 (SAIAB entries only): Eleotris fusca, E. melanosoma; Bathygobius albopunctatus, B. cocosensis, B. cotticeps, B. cyclopterus, B. laddi, B. niger, B. padangensis, Glossogobius biocellatus, G. giuris, Hetereleotris zonata (but see comments above), Priolepis cinctus (pers. obs.), Awaous aeneofuscus, Gnatholepis anjerensis (Randall and Greenfi eld, 2001), G. cauerensis (Brito and Miller, 2001; Miller, 1990; Randall and Greenfi eld, 2001, 2007; Rocha et al., 2005; Wirtz et al., 2007), Mugilogobius mertoni, Oligolepis acutipennis, O. keiensis, Oxyurichthys microlepis, O. ophthalmonema, Pandaka silvana, Periophthalmus argentilineatus, Periophthalmus kalolo, Redigobius bikolanus, Taenioides esquivel.
