Callichthys callichthys (Linnaeus, 1758)

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 : 63

Callichthys callichthys (Linnaeus, 1758)

Fig. 19

Body elongated; greatest depth contained 4.5 to 5.0 and caudal peduncle depth 6.5 to 6.7 times in SL; head length 4.3 to 4.5, predorsal distance 2.6 to 2.7 and maxillary-barbel length 3.9 to 4.1 in SL; snout length 2.2 to 2.4, horizontal orbital diameter 9.4 to 10.1 and least interorbital width 1.4 to 1.6 in HL. Mouth terminal. Lateral line with 4 pores on upper series of plates. Dorsolateral series with 26-29 and ventrolateral series with 24-27 plates. Dorsal fin with I,7 or 8, pectoral with I,6, pelvic and anal fins with 6 rays. Ground color pale brown to dark-grey. Dark-grey fins with black spots ( Graça, Pavanelli, 2007).

Maximum standard length. 150.0 mm ( Graça, Pavanelli, 2007).

Distribution. Widespread in South America rivers.

Figures

Fig. 19. a. Callichthys callichthys, MZUSP 60261, 120.0 mm SL, córrego da Onça, afluente do rio Pardo, Barra do Turvo, State of São Paulo. b. Corydoras aeneus, NUP 17578, 43.1 mm SL, córrego Guaçu, tributary of the rio Abambai, Itaquirai, State of Mato Grosso do Sul. c. Corydoras sp., NUP 16185, 33.4 mm SL, córrego Santa Maria, tributary of the rio Iguatemi, Mundo Novo, State of Mato Grosso do Sul. d. Hoplosternum littorale, NUP 161, 133.4 mm SL, lagoa Mutum, Porto Rico, State of Paraná. e. Lepthoplosternum pectorale, 100.0 mm SL, uncat. f. Cetopsis gobioides, 102.4 mm SL, uncat. g. Clarias gariepinus, NUP 11900, 329.0 mm SL, rio Lopei (Pesque-Pague Big Peixes), tributary of the rio Toledo, Cascavel, State of Paraná.