Results 1 to 10 of about 20 (18)

A new species of Leporinus (Characiformes: Anostomidae) from the Serra do Cachimbo, Pará State, Brazil

Neotropical Ichthyology, 2023
A new small-sized species of Leporinus is described from rio Braço Norte, a tributary of rio Teles Pires, in the Tapajós drainage in the Brazilian Amazon, and its phylogenetic position is proposed based on molecular data.
Ian Solon Bortoloci Ito, Lenice Souza-Shibatta, Marcos Venturieri, José L. O. Birindelli   +3 more
doaj   +1 more source

A new species of Leporinus Agassiz, 1829 from the upper Rio Paraná basin (Characiformes, Anostomidae) with redescription of L. elongatus Valenciennes, 1850 and L. obtusidens (Valenciennes, 1837)

Papéis Avulsos de Zoologia, 2012
Leporinus obtusidens Valenciennes, 1837 and L. elongatus Valenciennes, 1850 are redescribed based on the type specimens, including those of their junior synonyms, and recently collected specimens.
Heraldo A. Britski, José Luís O. Birindelli, Julio Cesar Garavello   +2 more
doaj   +1 more source

New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy [PDF]

Neotropical Ichthyology
Leporinus bleheri was described for the Guaporé-Iténez basin, in the border between Bolivia and Brazil. More recently, specimens of a similar-looking banded Leporinus were sampled in distinct rivers in the Madeira basin.
Mariana Pascoal Boaretto, Willian Massaharu Ohara, Lenice Souza-Shibatta, José Luís Olivan Birindelli   +3 more
doaj   +1 more source

Spermiogenesis and spermatozoa ultrastructure in the Serrasalminae (Ostariophysi: Characiformes) with further evidence on the relationships of the piranhas and pacus

Neotropical Ichthyology
Spermatozoa and spermiogenesis ultrastructure were studied in the serrasalmine species Piaractus mesopotamicus, Mylossoma duriventre, Serrasalmus maculatus, and Metynnis mola and two distinct patterns may be recognized: the first common to Mylossoma ...
Priscila Gusmão-Pompiani, Luiz R. Malabarba, Claudio Oliveira, Irani Quagio-Grassiotto   +3 more
doaj   +1 more source

Two new species of Leporinus Agassiz (Characiformes: Anostomidae) from eastern basins of Brazil, and redescription of L. melanopleura Günther

Neotropical Ichthyology
Two new species of Leporinus are described from coastal rivers of southern Bahia, Brazil. One of the new species has a bright red blotch immediately dorsal to the pectoral-fin origin in life, three dark blotches along the lateral line that distinctly ...
Jose L. O. Birindelli, Heraldo A. Britski, Julio C. Garavello   +2 more
doaj   +1 more source

Description of a new species of the genus Leporinus Spix (Characiformes: Anostomidae) from the rio Araguaia, Brazil, with comments on the taxonomy and distribution of L. parae and L. lacustris

Neotropical Ichthyology
A new species of the genus Leporinus is described from the rio Araguaia, in Mato Grosso and Goiás states, Brazil. The new species has the dental formula 4/3, a unique feature within the genus; all other species of Leporinus have dental formulae 3/3, 3/4 ...
Heraldo A. Britski, José L. O. Birindelli   +1 more
doaj   +1 more source

Redescription of Leporinus jamesi (Characiformes: Anostomidae), a poorly known species of Leporinus from the lowlands of the central Amazon, Brazil

Neotropical Ichthyology
The poorly known Leporinus jamesiis redescribed. The species was originally described based on a single specimen collected in the rio Solimões at Manacapuru, in the central Amazon, Brazil.
Júlio C. Garavello, Heraldo A. Britski, José L. O. Birindelli   +2 more
doaj   +1 more source

New species of Leporinus (Characiformes: Anostomidae) from the highlands of the Guiana Shield in Venezuela

Neotropical Ichthyology
A new species of Leporinus is described using morphological data and compared to all other species of the family. Specimens were illustrated using digital photograph, measured using digital calipers, and had teeth, scales, and fin rays counted under a ...
José L. O. Birindelli, Heraldo A. Britski, Francisco Provenzano   +2 more
doaj   +1 more source

A new species of Leporinus Agassiz, 1829 (Characiformes: Anostomidae) from the rio Tocantins, Brazil

Neotropical Ichthyology
A new species of Leporinus is described based on specimens from the lower rio Tocantins, Pará State, Brazil. The new species is diagnosed by having conspicuous dark spots on center of scales on anterolateral portion of body, 33 or 34 scales in lateral ...
Heraldo A. Britski, Jose L. O. Birindelli   +1 more
doaj   +1 more source

Karyotype variability in six Amazonian species of the family Curimatidae (Characiformes) revealed by repetitive sequence mapping. [PDF]

Genet Mol Biol, 2022
Moraes JN, Viana PF, Favarato RM, Pinheiro-Figliuolo VS, Feldberg E.   +4 more
europepmc   +1 more source