Hemigrammus ora Zarske, Le Bail, Gery 2006
Creators: name: Ota, Renata Rúbia
name: Deprá, Gabriel de Carvalho
name: Graça, Weferson Júnio da
name: Pavanelli, Carla Simone
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Characiformes
Characidae
Hemigrammus
Hemigrammus ora

description: <i>Hemigrammus ora</i> Zarske, Le Bail, Géry, 2006 <b>Fig. 8</b> Body elongated; greatest depth contained 2.9 to 3.4 and caudal peduncle depth 8.3 to 11.2 times in SL; head length 3.3 to 4.0, predorsal distance 1.8 to 2.0 and caudal peduncle length 6.3 to 9.2 in SL; snout length 3.6 to 6.5, horizontal orbital diameter 2.1 to 3.3 and least interorbital width 2.3 to 3.3 in HL. Mouth terminal; inner row of premaxilla with 5 teeth, outer row with 3-6, dentary with 3 or 4 maxillary teeth. Lateral line incomplete, with 9-15 pored scales; longitudinal series with 31-35 scales; transverse series above lateral line with 5 or 6 scale rows and below with 4 or 5 scale rows. Dorsal fin with 10 or 11 rays, pectoral fin with 10-14 rays, pelvic fin with 7-10 rays, anal fin with 24-27 rays and caudal fin with 19 rays (Zarske <i>et al</i>., 2006; Jerep <i>et al</i>., 2011). Ground color whitish to pale; silvery to darkbrown longitudinal stripe on flank; black rounded humeral spot; dark-brown rounded blotch on last portion of caudal peduncle and caudal-fin base, reaching only base of median caudal fin rays. <b>Maximum standard length.</b> 38.4 mm. <b>Distribution.</b> Coastal drainages of French Guiana, upper rio Paraná, rio Tocantins-Araguaia and rio Xingu basins. <b>Remarks.</b> <i>Hemigrammus ora</i> has been captured in the upper rio Paraná floodplain since 2011 by Nupélia staff, and this is the first record to the upper rio Paraná basin. Zarske <i>et al.</i> (2006) described this species from the costal drainages of French Guiana, and Jerep <i>et al.</i> (2011) widened its geographic distribution to the upper rio Tocantins-Araguaia and rio Xingu basins, hypothesizing the continuous distribution of this species from its typelocality to the lower Amazon tributaries. Additionally, Jerep <i>et al.</i> (2011) found two morphological differences: three small dentary teeth and longer snout length 7.7- 10.6% SL (<i>vs.</i> 8-10 small dentary teeth and snout length 3.9-7.0% SL from the type specimens). The specimens from the upper rio Paraná floodplain present three or four small dentary teeth (in accordance with Jerep <i>et al.</i>, 2011) and snout length 6.4-7.2% SL (23.3-28.0% HL; in accordance with Zarske <i>et al.</i>, 2006). <i>Hemigrammus ora</i> is a non-native species from the upper rio Paraná basin, probably introduced from the rio Tocantins-Araguaia basin.
description: Published as part of <i>Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da &amp; Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2)</i> on page 28, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record/3678395
description: {"references": ["Zarske A, Le Bail P-Y, Gery J. New and poorly known Characiform fishes from French Guiana. 1. Two new Tetras of the genera Hemigrammus and Hyphessobrycon (Teleostei: Characiformes: Characidae). Zool Abh. 2006; 55: 17 - 30.", "Jerep FC, Carvalho FR, Bertaco VA. Geographic distribution of Hemigrammus ora (Ostariophysi: Characiformes: Characidae) in the Amazon basin, Brazil. Zoologia. 2011; 28 (4): 545 - 50."]}