Jenynsia lineata species complex, revision and new species description (Cyprinodontiformes: Anablepidae)
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This record enriches the publication "Jenynsia lineata species complex, revision and new species description (Cyprinodontiformes: Anablepidae)" to improve its Data Commons accessibility. It demonstrates the generation of DataCite and Darwin Core metadata using DataFutures annostor, to improve discovery. Individual page imagery is generated automatically from a PDF of the original publication, providing a coordinate framework for taxonomic treatment annotations using W3C's Web Annotation Data Model (WADM). Annotations from other sources, such as Plazi TreatmentBank can be converted to WADM, enabling display, editing by experts and long-term preservation.
Abstract
The Jenynsia lineata species complex comprises J. lineata from Montevideo, Uruguay and Jenynsia multidentata, from coastal basins of Brazil, Uruguay and Argentina up to 1200 m a.s.l. Taxonomic divisions within this group were tested using three different species delimitation methods, which found the two existing names to be synonyms and revealed a new cryptic species. Jenynsia darwini sp. nov. is distinguished from all congeners by having a unique combination of character states, including the shape of the dorsal postcleithrum (three times higher than wide v. less than two times higher than wide) and female colour pattern in the half of the caudal peduncle with rows of chromatophores segmented in unaligned spots (v. aligned spots forming lines). The new species also differs from J. lineata by having 26 nucleotide substitutions in the mitochondrial gene cytochrome c oxidase I (coI). Phylogenetic analysis of the genus based on morphological characters proposed by previous studies corroborates monophyly of the subgenera Plesiojenynsia and Jenynsia, with the new species being allocated to the subgenus Jenynsia as the sister group of J. lineata.
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JFishBiol.92.1312-1332.pdf
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(1.4 MB)
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