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Fig. 5 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 5. Weight-length relationship (a) and the regular (b) and polyphasic (c) distribution of the proportional residuals in Anableps anableps males collected at the mouth of the Maracanã River, Pará State.

Fig. 9 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 9. Number of eggs/embryos (a) and ovarian weight (b) relative to body size (standard length) recorded in Anableps anableps females from the mouth of the Maracanã River, Pará.

Fig. 11 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 11. Proportion of sexually mature Anableps anableps females by body size (standard length) collected in the mouth of the Maracanã River, Pará State.

Fig. 3 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 3. Between-sexes variation in (a) standard length and (b) weight in Anableps anableps from the Maracanã River, Pará State.

Fig. 7 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 7. Proportion of Anableps anableps females by stage of gonadal maturity in the mouth of the Maracanã River, Pará Sttate.

Fig. 4 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 4. Weight-length relationship (a) and the distribution of the proportional residuals (b) in Anableps anableps females collected at the mouth of the Maracanã River, Pará State.

Fig. 2 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 2. Monthly variation in the sex ratio (females to males) of Anableps anableps in the mouth of the Maracanã River, Pará State.

Fig. 1 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 1. Study area showing the Maracanã River and the collecting locality (white circle) in the Brazilian state of Pará.

Fig. 8 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 8. Monthly variation in the gonadosomatic index (GSI) in Anableps anableps females collected at the mouth of the Maracanã River, Pará State.

Fig. 10 in Reproductive characteristics and the weight-length relationship in Anableps anableps (Linnaeus, 1758) (Cyprinodontiformes: Anablepidae) from the Amazon Estuary

Fig. 10. Embryo length (a) and weight (b) in relation to the number of stage V embryos in Anableps anableps from the Maracanã River, Pará State.

Fig. 7 in Phylogeographic pattern of Jenynsia multidentata (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian Subregion, Argentina

Fig. 7. Population relationships described by Φ ST computed between pairs of populations inferred from mitochondrial DNA control region of Jenynsia multidentata.

Fig. 5 in Phylogeographic pattern of Jenynsia multidentata (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian Subregion, Argentina

Fig. 5. Median-Joining haplotype network of Jenynsia multidentata. Circle sizes are proportional to haplotype frequencies. The crossed marks are nucleotide substitutions inferred in that branch. Shading patterns indicates localities. Black: Chapadmalal. Black doted: Chocorí. Cross: El Moro. Dark grey: Quequén Grande. Horizontal lines: Cortaderas. Light grey: Claromecó. Grey: Quequén Salado. Diagonal lines: Sauce Grande. Vertical lines: Saladillo. Grey doted: Sauce Chico. White circles represent hypothetical haplotypes.

Fig. 4 in Phylogeographic pattern of Jenynsia multidentata (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian Subregion, Argentina

Fig. 4. Distance tree obtained by Neighbor-Joining method based on mitochondrial DNA control region of Jenynsia multidentata. Numbers under the nodes represents the Bootstrap values. The length branches are proportional to mutations per site. H1-H9: Haplotypes. Black vertical lines next to sample localities are proportional to the individual numbers in each locality. Shading patterns indicates localities. Black: Chapadmalal. Black doted: Chocorí. Cross: El Moro. Dark grey: Quequén Grande. Horizontal lines: Cortaderas. Light grey: Claromecó. Grey: Quequén Salado. Diagonal lines: Sauce Grande. Vertical lines: Saladillo. Grey doted: Sauce Chico.

Fig. 3 in Phylogeographic pattern of Jenynsia multidentata (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian Subregion, Argentina

Fig. 3. Phylogenetic consensus tree obtained by Maximum Likelihood based on DNA control region of Jenynsia multidentata. Numbers under the nodes represents the Bootstrap values. The length branches are proportional to mutations per site. H1-H9: Haplotypes. Black vertical lines next to sample localities are proportional to the individual numbers in each locality. Shading patterns indicates localities. Black: Chapadmalal. Black doted: Chocorí. Cross: El Moro. Dark grey: Quequén Grande. Horizontal lines: Cortaderas. Light grey: Claromecó. Grey: Quequén Salado. Diagonal lines: Sauce Grande. Vertical lines: Saladillo. Grey doted: Sauce Chico.

Fig. 2 in Phylogeographic pattern of Jenynsia multidentata (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian Subregion, Argentina

Fig. 2. Phylogenetic strict consensus tree obtained by Maximun Parsimony based on mitochondrial DNA control region of Jenynsia multidentata. Numbers under the nodes represents the Bootstrap values. The length branches are proportional to mutations per site. H1-H9: Haplotypes. Black vertical lines next to sample localities are proportional to the individual numbers in each locality. Shading patterns indicates localities. Black: Chapadmalal. Black doted: Chocorí. Cross: El Moro. Dark grey: Quequén Grande. Horizontal lines: Cortaderas. Light grey: Claromecó. Grey: Quequén Salado. Diagonal lines: Sauce Grande. Vertical lines: Saladillo. Grey doted: Sauce Chico.

Fig. 1 in Phylogeographic pattern of Jenynsia multidentata (Cyprinodontiformes: Anablepidae) in the southern boundary of the Brazilian Subregion, Argentina

Fig. 1. Geographical distribution of Jenynsia multidentata in the Southern Pampean area. Numbers represent sample localities. 1: arroyo Chapadmalal. 2: arroyo Chocorí. 3: arroyo El Moro. 4: río Quequén Grande. 5: arroyo Cortaderas. 6: arroyo Claromecó. 7: río Quequén Salado. 8: río Sauce Grande. 9: arroyo Saladillo. 10: arroyo Sauce Chico.

Fig. 5 in Jenynsia luxata, a new species from Northwestern Argentina, with additional observations of J. maculata Regan and phylogeny of the genus (Cyprinodontiformes: Anablepidae)

Fig. 5. Topologies from most equally parsimonious trees and relative Bremer support/GC values under (a) equal weights (strict consensus of 12 trees), and (b) implied weighting (strict consensus of two trees), with concavities K = 4 to 20 (with supports measured under K = 8). Unsupported nodes are shown as collapsed. The relationships of genera of the family are consistent with those proposed in previous studies, therefore species of Anableps and Oxyzygonectes are not shown.

Fig. 1 in Jenynsia luxata, a new species from Northwestern Argentina, with additional observations of J. maculata Regan and phylogeny of the genus (Cyprinodontiformes: Anablepidae)

Fig. 1. Jenynsia luxata. Above: holotype CI-FML: 5464, male, 24.4 mm SL, Tucumán, Burruyacu city, a small unnamed stream, río Tajamar basin, Argentina; below: paratype CI-FML 5466, female, 34.8 mm SL, Santiago del Estero, Pellegrini, small flooded pools at Ruta Provincial 4, not connected to but near to río Urueña basin, Argentina.

Fig. 4 in Jenynsia luxata, a new species from Northwestern Argentina, with additional observations of J. maculata Regan and phylogeny of the genus (Cyprinodontiformes: Anablepidae)

Fig. 4. Hydrographic map of South America showing the currently known distribution of Jenynsia luxata. The area delimited by the rectangle is enlarged at right, where the type locality is indicated by an open dot and an additional locality is indicated by a black dot. The small black dot indicates the capital of Tucumán.