Freshwater and Brackish-Water Fishes Observed on Montserrat, Lesser Antilles, West Indies

We conducted a short-term survey of fishes in the fresh and brackish waters of the Caribbean island of Montserrat from December 2013 to January 2014. We documented 13 species; most belonged to marine families except the introduced Poecilia reticulata (Guppy) and some catadromous and amphidromous species. We update the taxonomy of several Caribbean species and report a northward range extension for Genytremus luteus (Torroto Grunt). We were unable to identify to species specimens belonging to the amphidromous goby genus Sicydium, and suggest that more specimens and DNA data need to be collected to clarify the taxonomy in this genus.