Iterative taxonomic study of Pareiorhaphis hystrix (Siluriformes, Loricariidae) suggests a single, yet phenotypically variable, species in south Brazil.

PLoS One · 2020 · PMC7470336 · PMID 32881879

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a slight trendno p-value reported

While morphology indicates a slight trend of watershed separation, this was not corroborated by the molecular data.

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