Crenicichla jaguarensis Haseman, 1911

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 : 94-95

Crenicichla jaguarensis Haseman, 1911

Fig. 34

Body elongated; greatest body depth contained 4.0 to 5.3, head depth 5.8 to 7.1 and caudal peduncle depth 8.2 to 10.2 times in SL; head length 2.9 to 3.4 and caudal peduncle length 5.4 to 7.6 in SL; snout length 3.1 to 4.7, horizontal orbital diameter 4.2 to 6.0 and least interorbital width 6.7 to 7.8 in HL. Mouth terminal; premaxilla and dentary with many teeth rows. Upper lateral line with 22-26 and lower lateral line with 10-13 pored scales, and longitudinal series with 46-58 scales. Transversal series above upper lateral with 3 or 3½ and below lower lateral line with 6-9 scale rows. Dorsal fin with XIX-XXI,10-12, pectoral fin with 15-17, pelvic fin with I,5 and anal fin with III,8-10 rays ( Varella, 2011). Ground color yellowish green; black suborbital stripe; dark-brown longitudinal band, from opercle to caudal peduncle; dark-brown transverse bars on flank; brown spots on lateral line scales. Soft portion of dorsal and anal fins with dark-brown spots, sometimes forming stripes; black rounded blotch on caudal-fin base.

Maximum standard length. 196.6 mm.

Distribution. Upper rio Paraná basin.

Remarks. Some specimens of C. jaguarensis were identified as C. haroldoi by Graça, Pavanelli (2007). Both species occur in the upper rio Paraná floodplain, where C. jaguarensis has been captured since 2004 by the Nupélia staff. Crenicichla jaguarensis can be distinguished by presenting brown spots on the lateral line scales less conspicuous and less evident, 46-58 scales (mode 55) on longitudinal series and 6-9 (mode 8) gill rakers on ceratobranchial 1 (vs. spots on lateral line scales black and conspicuous spots on lateral line, 52-61 scales on longitudinal series (mode 58) on longitudinal series; 6-8 (mode 7) gill rakers on ceratobranchial 1 in C. haroldoi ; Varella, 2011).

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.