Astronotus crassipinnis (Heckel, 1840)

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 : 91-92

Astronotus crassipinnis (Heckel, 1840)

Fig. 33

Body deep; greatest body depth contained 1.8 to 2.2 and head depth 3.0 to 3.2 times in SL; head length 2.4 to 3.2 in SL; snout length 2.9 to 3.1, horizontal orbital diameter 4.6 to 5.2 and least interorbital width 2.1 to 2.2 in HL. Mouth terminal; outer row of premaxilla with 17-20, and outer row of dentary with 15-20 teeth, followed by three rows of conical teeth. Upper lateral line with 20 or 21, lower lateral line with 22 pored scales and longitudinal series with 14- 15 scales. Transversal series above upper lateral line with 5 or 5½ scale rows, and below lower lateral line with 14 or 15 scale rows. Dorsal fin with XIV,19-21, pectoral fin with 15 or 16, pelvic fin with I,6 and anal fins with III,15- 17 rays. Ground color dark-brown to black; several lightbeige irregular transverse bars; superior portion of caudalfin base with black rounded ocelli, with orange margins. Dark-grey fins, sometimes dorsal, anal and caudal fins with distal margin hyaline. Males in reproductive period with yellowish-red spots on body ( Graça, Pavanelli, 2007).

Maximum standard length. 302.0 mm ( Graça, Pavanelli, 2007).

Distribution. Amazon basin and Paraná-Paraguay system.

Remarks. Astronotus crassipinnis is a non-native species in the upper rio Paraná basin, and its recent occurrence can be associated with the aquarium trade.

Figures

Fig. 33. a. Aequidens plagiozonatus, NUP 16948, 56.8 mm SL, lagoa sem nome, tributary of rio Baía, Taquarussu, State of Mato Grosso do Sul. b. Apistogramma commbrae, NUP 6525, 32.5 mm SL, rio Paraná, Porto Rico, State of Paraná. c. Astronotus crassipinnis, 172.3 mm SL, fresh specimen, uncat. d. Chaetobranchopsis australis, NUP 9366, 95.2 mm SL, córrego Juqueri, tributary of the rio Guiraí, Novo Horizonte do Sul, State of Mato Grosso do Sul. e. Cichla kelberi, 190.0 mm SL, fresh specimen, uncat. f. Cichla piquiti, 240.0 mm SL, fresh specimen, uncat.