Hyphessobrycon moniliger Moreira, Lima, Costa, 2002

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 : 29

Hyphessobrycon moniliger Moreira, Lima, Costa, 2002

Fig. 8

Body moderately deep; greatest depth contained 2.6 to 3.2 and caudal peduncle depth 8.2 to 10.9 times in SL; head length 3.0 to 3.6, predorsal distance 1.7 to 2.0 and caudal peduncle length 6.1 to 10.3 in SL; snout length 3.4 to 4.9, horizontal orbital diameter 2.1 to 2.8 and least interorbital width 3.0 to 3.7 in HL. Mouth terminal; inner row of premaxilla with 5, rarely 6 teeth, outer row with 2-5, dentary with up to 12 and maxilla with 3 teeth. Lateral line incomplete, with 6-8 pored scales; longitudinal series with 27-35; transverse series above lateral line with 7 or 8 scale rows and below with 4-5 scale rows. Dorsal fin with 11 rays, pectoral fin with 11-14 rays, pelvic fin with 8 rays, anal fin with 26-30 rays and caudal fin with 19 rays ( Moreira et al., 2002). Ground color pale brown; one humeral spot ( Teixeira et al., 2015); dark-brown longitudinal stripe on flank, continuous with caudal peduncle blotch; dark-brown caudal peduncle blotch triangle-shaped in females and juveniles, rectangular in males; hyaline fins.

Maximum standard length. 27.0 mm.

Biological data. Anal fin of mature males with an anterior lobe and convex outline and proximal portion of the lobed rays with a projection, anterodorsally oriented; females with concave outline ( Moreira et al., 2002).

Distribution. Middle rio Araguaia, rio Tocantins, rio Tapajós and upper rio Paraná basins.

Remarks. Hyphessobrycon moniliger has been captured in upper rio Paraná floodplain since 2013 by the Nupélia staff. Hyphessobrycon moniliger is a non-native species from the upper rio Paraná basin, probably introduced from the rio Tocantins-Araguaia basin.

Figures

Fig. 8. a. Hemigrammus ora, NUP 18973, 26.4 mm SL, ressaco do Pau Veio, tributary of the rio Paraná, State of Paraná. b. Hyphessobrycon eques, 32.0 mm SL, fresh specimen, uncat. c. Hyphessobrycon moniliger (top, female, NUP 1248, 29.9 mm SL, ribeirão Bocaina, tributary of the rio Meia Ponte, Piracanjuba, State of Goiás; bottom, male, NUP 16949, 26.2 mm SL, lagoa da Onça, tributary of the rio Baía, Taquarussu, State of Mato Grosso do Sul). d. Moenkhausia australe, NUP 11115, 45.0 mm SL, riacho Caracu, tributary of the rio Paraná, Porto Rico, State of Paraná. e. Moenkhausia bonita, NUP 11700, 30.1 mm SL, lagoa das Pombas, tributary of the rio Paraná, Porto Rico, State of Paraná. f. Moenkhausia forestii, NUP 16583, 36.0 mm SL, rio Baía, tributary of the rio Paraná, Taquarussu, State of Mato Grosso do Sul. g. Moenkhausia cf. gracilima, NUP 11099, 33.1 mm SL, ribeirão São Pedro, tributary of the rio Paraná, São Pedro do Paraná, State of Paraná. h. Moenkhausia aff. intermedia, NUP 2389, 68.4 mm SL, Segredo Reservoir, Mangueirinha, State of Paraná. i. Moenkhausia sanctaefilomenae, 24.1 mm SL, uncat.