Acestrorhynchus lacustris (Lütken, 1875)

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: 17

publication ID 10.1590/1982-0224-20170094


persistent identifier

treatment provided by


scientific name

Acestrorhynchus lacustris (Lütken, 1875)


Acestrorhynchus lacustris (Lütken, 1875)  

Fig. 3 View Fig

Body elongated; greatest depth contained 4.2 to 5.3 and caudal peduncle depth 13.2 to 15.6 times in SL; head length 3.1 to 3.6, predorsal distance 1.5 to 1.7 and caudal peduncle length 12.5 to 14.0 in SL; snout length 2.5 to 2.8, horizontal orbital diameter 2.8 to 5.0 and least interorbital width 4.0 to 5.4 in HL. Mouth terminal; outer row of premaxilla with 13-16 and inner row with 10-20, and maxilla with 16-39 teeth. Lateral line complete, with 86- 102 pored scales; transverse series above lateral line with 22-25 and below with 13-15 scale rows. Dorsal fin with 11, pectoral fin with 14-18, pelvic fin with 8, anal fin with 23- 27, and caudal fin with 19 rays ( Menezes, 1992). Ground color silvery to yellowish; black rounded humeral blotch; black oval, horizontally elongated, blotch on caudal-fin base, extending to median caudal-fin rays. Yellowish fins ( Graça, Pavanelli, 2007).

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

Distribution. Upper rio Paraná and rio São Francisco basins.