Description and redescription ofGalaxiasspecies (Teleostei: Galaxiidae) from Otago and Southland

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Abstract
There are two distinct genotypes and morphotypes of fish belonging to Galaxias vulgaris Stokell (sensu lato) in narrow sympatry in Healy Stream, a tributary of the Kye Burn in the Taieri River system, northeastern Otago. Therefore the present taxonomy of the species misrepresents the diversity of these fish. Analysis of allozymes using gel electrophoresis indicates at least four groups of populations. The two sympatric forms are clearly distinct species; the taxonomic status of the other geno‐ and morphotypes is more equivocal, but three species are recognised and described or redescribed here, on the basis of morphological and genetic evidence: Other populations in Otago are also variously distinct genetically or morphologically from the above three species. Decisions on their taxonomic status await further study.