Hypostomus regani (Ihering, 1905)

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 : 75

Hypostomus regani (Ihering, 1905)

Fig. 24

Body deep; greatest body depth contained 4.3 to 4.7 and caudal peduncle depth 9.3 to 10.3 times in SL; head length 3.1 to 3.4, predorsal distance 2.5 to 2.8, dorsal-fin spine length 2.2 to 3.6, pectoral-fin spine length 3.1 to 3.7, adipose-fin spine length 10.0 to 13.3 and caudal peduncle length 2.8 to 3.3 in SL; snout length 1.6 to 1.8, horizontal orbital diameter 4.8 to 5.8 and least interorbital width 2.3 to 2.6 in HL. Mouth inferior; premaxilla with 65-110 and dentary with 65-132 teeth. Mid-lateral series with 27 or 28, predorsal series with 3-5, and dorsal-fin base series with 8 or 9 plates. Dorsal fin with I,7, pectoral fin with I,6, pelvic fin with i,5 and anal fin with 6 rays. Ground color brown; lightbeige spots on body, smaller on head. Dark-brown fins with light-beige spots.

Maximum standard length. 280.0 mm ( Graça, Pavanelli, 2007).

Distribution. Río de la Plata basin.

Figures

Fig. 24. a. Hypostomus iheringii, NUP 2577, 190.0 mm SL, rio Paraná, Porto Rico, State of Paraná.b. Hypostomus margaritifer, 235.0 mm SL, uncat. c. Hypostomus microstomus, NUP 1725, 165.0 mm SL, riacho Caracu, Porto Rico, State of Paraná. d. Hypostomus regani, NUP 2286, 170.0 mm SL, Corumbá Reservoir, Caldas Novas, State of Goiás. e. Hypostomus cf. strigaticeps, NUP 3190, 150.0 mm SL, rio Paraná, Porto Rico, State of Paraná. f. Hypostomus ternetzi, 210.0 mm SL, uncat.