taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890196/files/figure.png	https://doi.org/10.5281/zenodo.19890196	FIGURE 2 | Jenynsia aurea, UFRGS 29990, holotype, male, 56.7 mm SL, Brazil, Rio Grande do Sul, Itati, arroio Carvalho, rio Três Forquilhas drainage.	FIGURE 2 | Jenynsia aurea, UFRGS 29990, holotype, male, 56.7 mm SL, Brazil, Rio Grande do Sul, Itati, arroio Carvalho, rio Três Forquilhas drainage.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890206/files/figure.png	https://doi.org/10.5281/zenodo.19890206	FIGURE 3 |Color in life of Jenynsia aurea. All figured specimens are paratypes. (A) MCP 25306, male, 50.9 mm SL, (B) MCP 25292, female, 66.9 mm SL, Brazil, Rio Grande do Sul, creek on the road between Terra de Areia and Itati; (C) UFRGS 26517, immature, 35.7 mm SL, (D) UFRGS 26517, female, 54.7 mm SL, Brazil, Rio Grande do Sul, Maquiné, Balneário Municipal do rio Maquiné.	FIGURE 3 |Color in life of Jenynsia aurea. All figured specimens are paratypes. (A) MCP 25306, male, 50.9 mm SL, (B) MCP 25292, female, 66.9 mm SL, Brazil, Rio Grande do Sul, creek on the road between Terra de Areia and Itati; (C) UFRGS 26517, immature, 35.7 mm SL, (D) UFRGS 26517, female, 54.7 mm SL, Brazil, Rio Grande do Sul, Maquiné, Balneário Municipal do rio Maquiné.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890210/files/figure.png	https://doi.org/10.5281/zenodo.19890210	FIGURE 4 | Color just after fixation in formalin and color after preservation in alcohol of the same specimens of Jenynsia aurea. Paratypes. (A, B) UFRGS 4994, male, 63.6 mm SL, (C, D) female, 66.0 mm SL, Brazil, Rio Grande do Sul, Maquiné, rio Maquiné.	FIGURE 4 | Color just after fixation in formalin and color after preservation in alcohol of the same specimens of Jenynsia aurea. Paratypes. (A, B) UFRGS 4994, male, 63.6 mm SL, (C, D) female, 66.0 mm SL, Brazil, Rio Grande do Sul, Maquiné, rio Maquiné.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890216/files/figure.png	https://doi.org/10.5281/zenodo.19890216	FIGURE 5 | Premaxilla, maxilla and dentary of specimens cleared and stained for bone and cartilage, showing the teeth of Jenynsia aurea from rio Maquiné (left, UFRGS 4994) and rio Três Forquilhas populations (right, MCP 10779). The premaxillae and dentaries are in medial view and the maxillae are in lateral view.	FIGURE 5 | Premaxilla, maxilla and dentary of specimens cleared and stained for bone and cartilage, showing the teeth of Jenynsia aurea from rio Maquiné (left, UFRGS 4994) and rio Três Forquilhas populations (right, MCP 10779). The premaxillae and dentaries are in medial view and the maxillae are in lateral view.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890220/files/figure.png	https://doi.org/10.5281/zenodo.19890220	FIGURE 6 | Color after fixation in formalin and preservation in alcohol of juveniles of Jenynsia aurea, UFRGS 16503, paratypes, (A) 25.9 mm SL, (B) 29.3 mm SL, and (C) 33.9 mm SL, Itati, mouth of arroio da Barra into arroio Bananeiras.	FIGURE 6 | Color after fixation in formalin and preservation in alcohol of juveniles of Jenynsia aurea, UFRGS 16503, paratypes, (A) 25.9 mm SL, (B) 29.3 mm SL, and (C) 33.9 mm SL, Itati, mouth of arroio da Barra into arroio Bananeiras.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890225/files/figure.png	https://doi.org/10.5281/zenodo.19890225	FIGURE 7 | Haplotype network using Median-Joining for the species of the subgenus Plesiojenynsia for the COI gene. Each circle represents a single haplotype and its size is proportional to its frequency. Populations from rio Mampituba (MAM), rio Araranguá (ARA), rio Maquiné (MAQ), rio Três Forquilhas (TRF).	FIGURE 7 | Haplotype network using Median-Joining for the species of the subgenus Plesiojenynsia for the COI gene. Each circle represents a single haplotype and its size is proportional to its frequency. Populations from rio Mampituba (MAM), rio Araranguá (ARA), rio Maquiné (MAQ), rio Três Forquilhas (TRF).	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890188/files/figure.png	https://doi.org/10.5281/zenodo.19890188	FIGURE 1 | Rio Araranguá (AR), rio Mampituba (MP), rio Três Forquilhas (TF) and rio Maquiné (MQ) drainages forming the Tramandaí-Mampituba ecoregion, showing the collection locations of analyzed samples of Jenynsia aurea (blue) and J. unitaenia (green). Stars indicate type-localities.	FIGURE 1 | Rio Araranguá (AR), rio Mampituba (MP), rio Três Forquilhas (TF) and rio Maquiné (MQ) drainages forming the Tramandaí-Mampituba ecoregion, showing the collection locations of analyzed samples of Jenynsia aurea (blue) and J. unitaenia (green). Stars indicate type-localities.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890228/files/figure.png	https://doi.org/10.5281/zenodo.19890228	FIGURE 8 | Gene tree for the COI gene and for the CytB gene generated by Bayesian inference in Beast. Jenynsia aurea is represented by the blue clade: populations from rio Três Forquilhas (TF) and rio Maquiné (MQ). Jenynsia unitaenia is represented by the green clade: populations from rio Mampituba (MP) and rio Araranguá (AR). The numbers at the nodes are the posterior probability.	FIGURE 8 | Gene tree for the COI gene and for the CytB gene generated by Bayesian inference in Beast. Jenynsia aurea is represented by the blue clade: populations from rio Três Forquilhas (TF) and rio Maquiné (MQ). Jenynsia unitaenia is represented by the green clade: populations from rio Mampituba (MP) and rio Araranguá (AR). The numbers at the nodes are the posterior probability.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890233/files/figure.png	https://doi.org/10.5281/zenodo.19890233	FIGURE 9 | Species tree. Numbers at the nodes represents the posterior probability. Populations from rio Mampituba (MAM), rio Araranguá (ARA), rio Maquiné (MAQ), rio Três Forquilhas (TRF), Laguna dos Patos (LP), rio Uruguai (UR).	FIGURE 9 | Species tree. Numbers at the nodes represents the posterior probability. Populations from rio Mampituba (MAM), rio Araranguá (ARA), rio Maquiné (MAQ), rio Três Forquilhas (TRF), Laguna dos Patos (LP), rio Uruguai (UR).	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890239/files/figure.png	https://doi.org/10.5281/zenodo.19890239	FIGURE 10 | Premaxilla, maxilla and dentary of specimens cleared and stained for bone and cartilage, showing the teeth of Jenynsia unitaenia from rio Mampituba (left, UFRGS 15888) and rio Araranguá populations (right, UFRGS 12553). The premaxillae are in medial view and the maxillae are in lateral view. Dentary of UFRGS 15888 is in medial view and dentary of UFRGS 12553 is in lateral view.	FIGURE 10 | Premaxilla, maxilla and dentary of specimens cleared and stained for bone and cartilage, showing the teeth of Jenynsia unitaenia from rio Mampituba (left, UFRGS 15888) and rio Araranguá populations (right, UFRGS 12553). The premaxillae are in medial view and the maxillae are in lateral view. Dentary of UFRGS 15888 is in medial view and dentary of UFRGS 12553 is in lateral view.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
986287FDFFC2CC40FCC6FEB1FC94FDC8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/19890247/files/figure.png	https://doi.org/10.5281/zenodo.19890247	FIGURE 11 | Color in life of Jenynsia unitaenia. UFRGS 22072, (A) male, 54.7 mm SL (B) female, 58.6 mm SL, Brazil, Santa Catarina, Praia Grande, Canyon Malacara, Vila Rosa, rio Mampituba drainage. MCP 25439, (C) male, 56.4 mm SL, (D) female, 56.2 mm SL, Brazil, Santa Catarina, Ermo, rio Itoupava, rio Araranguá drainage.	FIGURE 11 | Color in life of Jenynsia unitaenia. UFRGS 22072, (A) male, 54.7 mm SL (B) female, 58.6 mm SL, Brazil, Santa Catarina, Praia Grande, Canyon Malacara, Vila Rosa, rio Mampituba drainage. MCP 25439, (C) male, 56.4 mm SL, (D) female, 56.2 mm SL, Brazil, Santa Catarina, Ermo, rio Itoupava, rio Araranguá drainage.	2026-04-27	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.		Zenodo	biologists	Hartmann, Caroline;Wingert, Juliana M.;Angrizani, Rafael C.;Malabarba, Luiz R.			
