Crenicichla, 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 : 96

Crenicichla sp.

Fig. 34

Body elongated; greatest body depth contained 4.1 to 4.3, head depth 5.0 to 5.4 and caudal peduncle depth 8.4 to 9.6 times in SL; head length 2.6 to 3.0 and caudal peduncle length 7.5 to 8.5 in SL; snout length 3.1 to 4.0, horizontal orbital diameter 4.1 to 4.7 and least interorbital width 5.4 to 5.9 in HL. Mouth terminal; premaxilla and dentary teeth arranged in many rows. Upper lateral line with 26-28 and lower lateral line with 12-14 pored scales and longitudinal series with 58-67 scales. Transversal series above upper lateral line with 3 or 3½ scale rows, and below lower lateral line with 5-7 scale rows. Dorsal fin with XIX,11, pectoral fin with 12-15, pelvic fin with I,5 and anal fin with III,7 rays ( Graça, Pavanelli, 2007). Ground color pale brown; black suborbital stripe; dark-brown longitudinal band, from opercle to caudal peduncle; dark-brown transverse bars on flank. Soft portion of dorsal and anal fins with dark-brown spots, sometimes forming stripes; pectoral and pelvic fins yellowish or hyaline; black rounded blotch on caudalfin base. Additional blotches and ocelli may appear in reproductive period, mainly on fins.

Maximum standard length. 195.4 mm.

Distribution. Upper rio Paraná and tributaries of the stretch from Guaíra to the Itaipu Reservoir.

Remarks. Crenicichla sp. was identified as C. niederleinii by Graça, Pavanelli (2007). Varella (2011), in a revisionary study of the Crenicichla Heckel, 1840 from the Paraná- Paraguay system, considered C. niederleinii a nomen dubium from the rio Uruguay basin, and assigned the specimens from the upper rio Paraná basin to a new species, in process of formal description.

Figures

Fig. 34. a. Cichlasoma paranaense, 110.0 mm SL, fresh specimen, uncat. d. Coptodon rendalli, 150.0 mm SL, uncat. c. Crenicichla britskii, 130.0 mm SL, fresh specimen, uncat. d. Crenicichla haroldoi, NUP 59, 104.3 mm SL, rio Baía, Taquarussu, State of Mato Grosso do Sul. e. Crenicichla jaguarensis, NUP 10797, 78.3 mm SL, rio Keller, tributary of the rio Ivaí, Itambé, State of Paraná. f. Crenicichla jupiaensis, NUP 5445, 75.8 mm SL, rio Piquiri, Nova Laranjeiras, State of Paraná. g. Crenicichla sp., 145.5 mm SL, uncat.