Hyphessobrycon eques (Steindachner, 1882)

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 : 28

Hyphessobrycon eques (Steindachner, 1882)

Fig. 8

Body moderately deep; greatest depth contained 2.7 to 2.9 and caudal peduncle depth 9.7 to 10.6 times in SL; head length 3.6 to 3.9, predorsal distance 1.9 to 2.0 and caudal peduncle length 8.6 to 11.1 in SL; snout length 4.0 to 4.5, horizontal orbital diameter 2.0 to 2.4 and least interorbital width 3.2 to 3.5 in HL. Mouth terminal; inner row of premaxilla with 3-5, outer row with 3-4, dentary with 8-11 and maxilla with 2-3 teeth. Lateral line incomplete, with 4-5 pored scales; longitudinal series with 29-33 scales; transverse series above lateral line with 5-6 scale rows and below with 3½-4 scale rows. Dorsal fin with 10-12, pectoral fin with 12-14, pelvic fin with 7 rays, anal fin with 28-32 and caudal fin with 19 rays. Ground color reddish in life; large, transversely elogate, black humeral blotch. Pelvic, caudal and anal fins red (latter with black margin); pectoral fin hyaline; dorsal fin with black blotch ( Graça, Pavanelli, 2007).

Maximum standard length. 58.0 mm ( Graça, Pavanelli, 2007).

Distribution. Amazon basin and Paraná-Paraguay system.

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.