Results 91 to 100 of about 5,417 (192)

Astyanax vermilion and Astyanax burgerai: new characid fishes (Ostariophysi: Characiformes) from Northeastern Bahia, Brazil

Neotropical Ichthyology
Two new Astyanax species, A. vermilion, from rio Almada and rio Cachoeira, and A. burgerai, from rio Almada, Bahia State, Brazil, are described. Astyanax vermilion is distinguished from most of its congeners and from all other Astyanax species known from
Angela M. Zanata, Priscila Camelier
doaj   +1 more source

Urocleidoides astyanacis n. sp. (Mongenva ancyrocephalinae) from frescwater characidians on the genus Astyanax Urocleidoides astyanacis n. sp. (Mongenea Ancyrocephalinae) de caracídeos de água doce do gênero Astyanax

Memorias do Instituto Oswaldo Cruz, 1988
A new species of Urocleidoides, U. astyanacis (Monogenea, Ancyrocephalinae) is described from the "lambari" Astyanax scabripinnis (Jenyns, 1842) and A. fasciatus (Cuvier, 1819).
Ismael Gioia, Nelson da Silva Cordeiro, Paulo de Toledo Artigas   +2 more
doaj   +1 more source

Astyanax surface and cave fish morphs

EvoDevo, 2020
The small teleost fish Astyanax mexicanus has emerged as an outstanding model for studying many biological topics in the context of evolution. A major attribute is conspecific surface dwelling (surface fish) and blind cave dwelling (cavefish) morphs that
William R. Jeffery
doaj   +1 more source

Astyanax lineatus

, 2007
Astyanax lineatus: CI-FML 3272, 3 ex., 35.3-72.1 mm, Argentina, Salta, Oran, La Bambu, Rio Bermejo basin, Rio Blanco.Published as part of Juan Marcos Mirande, Gastón Aguilera & María de las Mercedes Azpelicueta, 2007, A new species of Astyanax ...
María de las Mercedes Azpelicueta, Gastón Aguilera, Juan Marcos Mirande   +2 more
core   +1 more source

Astyanax mexicanus

, 2010
Autapomorphy of Astyanax mexicanus: 1. Posterior extent of ventral process of quadrate (151): (0> 1) falling short of posterior margin of symplectic. Paralleled in the Hyphessobrycon luetkenii clade and Iguanodectinae, in nodes 284, 289, and 298, and in Astyanax cf.
openaire   +2 more sources

Phylogenetic relationships of the enigmatic Carlastyanax aurocaudatus (Eigenmann) with remarks on the phylogeny of the Stevardiinae (Teleostei: Characidae)

Neotropical Ichthyology
The monotypic genus Carlastyanax Géry was defined to include Astyanax aurocaudatus, a morphologically odd species having, among other features, four teeth in the posterior premaxillary row and eight branched dorsal-fin rays. Later on, the characters used
Juan Marcos Mirande, Fernando Camargo Jerep, James Anyelo Vanegas-Ríos   +2 more
doaj   +1 more source

Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) from eastern Brazil, with a synopsis of the Astyanax scabripinnis species complex

Neotropical Ichthyology
Two new species of Astyanax are described from eastern Brazil: A . microschemos from the córrego Palmital, rio Itapemirim drainage, Espírito Santo, and A . pelecus from the rio Pardo drainage, Bahia.
Vinicius A. Bertaco, Carlos A. S. de Lucena   +1 more
doaj   +1 more source

Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes)

Genetics and Molecular Biology, 2008
Characidae is one of the largest fish families of the Neotropical region, and presenting a pronounced morphological variability, certainly does not constitute a monophyletic group.
Wellington Adriano Moreira Peres, Luiz Antonio Carlos Bertollo, Orlando Moreira Filho   +2 more
doaj   +1 more source

Astyanax correntinus

, 2008
A.
openaire   +2 more sources

Ecomorphology of Astyanax species in streams with different substrates

Zoologia (Curitiba), 2014
In the present study, we assessed the ecomorphology of two species of Astyanax in streams with different substrates found in the Rio São Francisco Basin.
Marcela A. Souza, Daniela C. Fagundes, Cecília G. Leal, Paulo S. Pompeu   +3 more
doaj   +1 more source