Poecilia reticulata Peters, 1859

Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, Neotropical Ichthyology 16 (2), pp. 1-111 : 102

Poecilia reticulata Peters, 1859

Fig. 36

Body elongated; greatest depth contained 3.4 to 4.4 and caudal peduncle depth 4.8 to 6.0 times in SL; head length 3.3 to 4.1, predorsal distance 1.5 to 1.8 and gonopodium length 3.2 to 3.6 in SL; snout length 2.1 to 3.1, horizontal orbital diameter 2.2 to 3.5 and least interorbital width 1.5 to 2.3 in HL. Mouth superior, dentary prognathous; premaxilla and dentary with several small teeth. Longitudinal series with 26- 28 scales and transverse series with 8 or 9 scale rows. Dorsal fin with 8 or 9, pectoral fin with 13 or 14, pelvic fin with 6 and anal fin with 8 or 9 rays. Ground color pale yellow; scales with dark-brown border, conferring reticulate pattern to body; males with several black or colored spots and irregular stripes. Yellowish fins (males with black or colored spots); superior caudal-fin rays prolonged ( Graça, Pavanelli, 2007).

Maximum standard length. 38.0 mm ( Graça, Pavanelli, 2007).

Distribution. Drainages from Venezuela to río de la Plata basin.

Remarks. Poecilia reticulata is a non-native species from the upper rio Paraná and its occurrence can be associated with its introduction for insect larvae control.

Figures

Fig. 36. a. Melanorivulus sp., NUP 17575, córrego Querência, Amambaí, State of Mato Grosso do Sul (top, female, 24.7 mm SL; bottom, male, 28.3 mm SL). b. Pamphorichthys hollandi, NUP 16549, rio Baia, Taquarussu, State of Mato Grosso do Sul, Brazil (top, female, 22.8 mm SL; bottom, male, 17.6 mm SL). c. Phalloceros harpagos (top, female, NUP 9360, 22.7 mm SL, female, córrego de nome desconhecido, Jatei, State of Mato Grosso do Sul; bottom, male, NUP 1938, 18.0 mm SL, riacho Caracu, Porto Rico, State of Paraná). d. Phallotorynus pankalos, NUP 5839, córrego Sossego, tributary of the rio Iguatemi, Paranhos, State of Mato Grosso do Sul (top, female, 28.4 mm SL; bottom, male, 18.6 mm SL). e. Phallotorynus victoriae, NUP 1603, lagoa do Portinho, tributary of the rio Paraná, Três Lagoas, State of Mato Grosso do Sul (top, female, 14.6 mm SL; bottom, male, 18.6 mm SL). f. Poecilia reticulata, fresh specimens, uncat (top, female, 35.2 mm SL; bottom, male, 20.3 mm SL). g. Plagioscion squamosissimus, 330.0 mm SL, fresh specimen, uncat.