New Hyphessobrycon from the upper rio Pardo drainage in eastern Brazil (Teleostei: Characiformes: Characidae)

Abstract

A new species of characid, Hyphessobrycon vinaceus, is described from the upper rio Pardo, Minas Gerais, Brazil. The new species is distinguished from all other Hyphessobrycon species by the combination of the following characters: the body red or reddish pigmented in live specimens, an anterior and conspicuous vertically elongate black humeral spot followed by a second faint humeral spot, 5 teeth in the inner series of premaxilla, maxilla with 2-3 pentacuspidate teeth, 15-17 branched analfin rays, 4-5 scale rows above and 3-4 scale rows below lateral line, lateral line with 10-26 perforated scales, 32-34 scales in a longitudinal series, and by a smaller head length in relation to standard length (23.9-26.7%).Uma nova espécie de caracídeo, Hyphessobrycon vinaceus é descrita para o alto rio Pardo, Minas Gerais, Brasil. A nova espécie distingue-se das demais espécies de Hyphessobrycon pela combinação dos seguintes caracteres: coloração avermelhada do corpo em vida, uma mancha umeral preta e conspícua verticalmente alongada seguida de uma segunda mancha umeral fracamente pigmentada, 5 dentes na série interna do pré-maxilar, 2-3 dentes pentacuspidados no maxilar, 15-17 raios ramificados na nadadeira anal, 4-5 escamas acima e 3-4 escamas abaixo da linha lateral, 10-26 escamas perfuradas na linha lateral, 32-34 escamas em uma série longitudinal e menor comprimento da cabeça em relação ao comprimento padrão (23,9-26,7%).

Hyphessobrycon brumado: a new characid fish (Ostariophysi: Characiformes) from the upper rio de Contas drainage, Chapada Diamantina, Bahia, Brazil

“…Hyphessobrycon Durbin is one of the most speciose, widespread and taxonomically poorly known genera of the family Characidae, with more than 120 valid species including a series of recently described ones, distributed from southern Mexico to río de La Plata in Argentina (e.g., Carvalho & Bertaco, 2006;Bertaco et al, 2007;Benine & Lopes, 2008;Carvalho et al, 2008;Garzía-Alzate et al, 2010a, 2010bMiquelarena & López, 2010). The recognition of groups of species within Hyphessobrycon is based primarily on similarities of color patterns and a hypothesis of its intrarelationships is currently unavailable, except for the rosy tetra clade proposed as monophyletic by Weitzman & Palmer (1997) (Eigenmann) and H. santae (Eigenmann) from the rio São Francisco basin.…”

A new species of Astyanax Baird & Girard (Ostariophysi: Characidae) from the rio Taquari-Antas basin, southern Brazil

“…The new species recognized herein neither fits the definitions of the species complex Astyanax bimaculatus, diagnosed by the presence of a horizontally elongate black humeral spot, two dark vertical bars on the humeral region and a black caudal peduncle spot (Garutti & Britski, 2000) nor the concept of the A. scabripinnis species group, characterized mainly by a smaller body depth, robust head and body, and reduced number of branched anal-fin rays (Bertaco & Lucena, 2006 Mature males of Astyanax bagual possess bony hooks on rays of all fins which is considered an uncommon characteristic for characid species (Bertaco et al, 2007;Mirande, 2010). In recent years, new species of Astyanax have been described and/or redescribed with bony hooks on all fins, e.g., A. ojiara Azpelicueta & Garcia (2000), A. stenohalinus by Almirón et al (2010), and A. hamatilis Camelier & Zanata (2014), which may suggest that this character should not be considered uncommon, as accurate descriptions of larger series of specimens of different maturity stages are being performed.…”

Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina

“…Among Hyphessobrycon species the presence of bony hooks on the dorsal-fin rays is known to occur in H. auca Almirón, Casciotta, Bechara & Ruiz Diaz, H. hamatus Bertaco & Malabarba, H. togoi Miquelarena & López, H. uruguayensis (Fowler), and H. vinaceus Bertaco, Malabarba & Dergam (Miquelarena & López, 2006;Bertaco et al, 2007).…”

“…The genus Hyphessobrycon Durbin includes more than 100 valid species, occurring from Mexico and Central America to the Mar Chiquita Lagoon in Buenos Aires, Argentina and reaching its highest richness in the Amazon basin (Lima et al, 2003;Miquelarena & López, 2006;Bertaco et al, 2007). Authors that have recently addressed the systematics of the genus are unanimous in pointing out that the group is not well defined and its monophyly is yet uncertain (e.g., Bertaco & Carvalho, 2005;Bertaco & Malabarba, 2005;Carvalho & Bertaco, 2006;Bertaco et al, 2007).…”

“…Authors that have recently addressed the systematics of the genus are unanimous in pointing out that the group is not well defined and its monophyly is yet uncertain (e.g., Bertaco & Carvalho, 2005;Bertaco & Malabarba, 2005;Carvalho & Bertaco, 2006;Bertaco et al, 2007).…”