Geographic distribution of Hemigrammus ora (Ostariophysi: Characiformes: Characidae) in the Amazon basin, Brazil

Hyphessobrycon uaiso: new characid fish from the rio Grande, upper rio Paraná basin, Minas Gerais State (Ostariophysi: Characidae), with a brief comment about some types of Hyphessobrycon

“…Furthermore, we agree with Malabarba (1998:205) in considering Hyphessobrycon arianae as junior synonym of 'Cheirodon' stenodon, because all characters examined in the H. arianae types (e.g., pseudotympanum, arrangement of teeth in the premaxilla, tricuspid teeth, and color pattern) are also present in 'Cheirodon' stenodon. Hyphessobrycon stramineus, on the other hand, is known by an unique specimen, relatively well preserved (but with superior jaw missing), and according to the analysis of the holotype (MCZ 20772 -by FRC), we concluded that H. stramineus may be close related to Hemigrammus ora Zarske, Le Bail & Géry, based on the dentition (five, tri to pentacuspid, teeth in dentary), color pattern (pale humeral spot, and conspicuous caudal peduncle spot -original description in Ellis in Eigenmann, 1918: 190 and direct observation of holotype), and dorsal fin ii,8 (see redescription of Hemigrammus ora in Jerep et al, 2011). Hyphessobrycon othrynus is a tipical Hyphessobrycon sensu Eigenmann (1917 Zawadzki et al, 2008: 400), H. reticulatus, and H. uaiso, new species.…”

Ichthyofauna of the Gurgueia River, Parnaíba River basin, northeastern Brazil

“…Among the new records in the Parnaíba River basin, Hasemania nana and Hemigrammus brevis were previously considered endemic to the São Francisco basin; meanwhile Hemigrammus guyanensis and H. ora were originally recorded for French Guiana (Reis et al 2003;Zarske et al 2006). Jerep et al (2011) Ramos et al (2014).…”

Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated

“…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 et al, 2006;Jerep et al, 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.…”

“…Hemigrammus ora 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 et al (2006) described this species from the costal drainages of French Guiana, and Jerep et al (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 et al (2011) found two morphological differences: three small dentary teeth and longer snout length 7.7-10.6% SL (vs. 8-10 small dentary teeth and snout length 3.9-7.0% SL from the type specimens).…”

“…Zarske et al (2006) described this species from the costal drainages of French Guiana, and Jerep et al (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 et al (2011) found two morphological differences: three small dentary teeth and longer snout length 7.7-10.6% SL (vs. 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 et al, 2011) and snout length 6.4-7.2% SL (23.3-28.0% HL; in accordance with Zarske et al, 2006).…”