Pascua caudilinea, the Pascua goby, is a species of goby endemic to the waters around Easter Island. It has only been recorded from tide pools down to a depth of . This species can reach a length of SL (standard length).
References Randall, J. E. (2005): Pascua caudilinea, a New Genus and Species of Gobiid Fish (Perciformes: Gobiidae) from Easter Island. Zoological Studies, 44 (1): 19-25