Results 31 to 40 of about 247 (103)

A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Madeira basin with remarkable intraspecific color variation [PDF]

, 2015
The rio Madeira is the largest white-water tributary of the Amazon, and is currently the river drainage with the highest fish species diversity in the world. A new species of Panaqolus was recognized from the middle Madeira and Mamoré rivers (Brazil) and
Cramer, Christian Andreas, Py-daniel, Lúcia Rapp   +1 more
core   +4 more sources

Hemiancistrus guahiborum, a new suckermouth armored catfish from Southern Venezuela (Siluriformes: Loricariidae)

Neotropical Ichthyology
Hemiancistrus guahiborum, new species, is described from the Orinoco River drainage of Venezuela. Hemiancistrus guahiborum can be separated from all other Hemiancistrus and all Peckoltia except P. braueri and P.
David C. Werneke, Jonathan W. Armbruster, Nathan K. Lujan, Donald C. Taphorn   +3 more
doaj   +1 more source

Description of a new Lithoxus (Siluriformes: Loricariidae) from the Guayana Highlands with a discussion of Guiana Shield biogeography

Neotropical Ichthyology
Lithoxus jantjae, new species, is described from above Tencua Falls in headwaters of the Ventuari River, a white- to clearwater river flowing west from the Maigualida and Parima mountains in the Guayana Highlands of southern Venezuela.
Nathan K. Lujan
doaj   +1 more source

Contribuições ao status taxonômico de Ancistrus Kner, 1854 (Loricariidae, Ancistrini) da bacia do Rio Paraná, Brasil baseados em marcadores citogenéticos e moleculares [PDF]

, 2018
Ancistrus Kner, 1854 is one of the most specious groups of the Ancistrini tribe comprising 69 described species. Currently, karyotypes are known for 33 Ancistrus species, although most of these have not yet been formally identified.
Prizon, Ana Camila
core  

Fish, Lajeado Reservoir, rio Tocantins drainage, State of Tocantins, Brazil [PDF]

, 2007
The Lajeado HR is the fourth hydroelectric power plant constructed in the rio Tocantins. The implementation of hydroelectric plants in the rio Tocantins basin is of high environmental concern because they may result in severe damage to the ichthyofauna ...
Agostinho, Carlos, Freitas, Iriene, Lucinda, Paulo, Marques, Elineide, Oliveira, Rafael, Soares, Anderson   +5 more
core   +2 more sources

Baryancistrus demantoides and Hemiancistrus subviridis, two new uniquely colored species of catfishes from Venezuela (Siluriformes: Loricariidae)

Neotropical Ichthyology
Baryancistrus demantoides and Hemiancistrus subviridis are two new species of loricariids from southern Venezuela with an olive ground coloration and white to cream-colored or golden-yellow spots.
David C. Werneke, Mark H. Sabaj, Nathan K. Lujan, Jonathan W. Armbruster   +3 more
doaj   +1 more source

The species of Hemiancistrus (Siluriformes: Loricariidae) from Ecuador [PDF]

, 2017
En la Colección de Peces del Instituto de Ciencias Biológicas, Escuela Politécnica Nacional, Quito se identificaron tres especies que tradicionalmente son agrupadas en el género Hemiancistrus: H. annectens (Regan 1904), H. landoni Eigenmann 1916, y una
Barriga, Ramiro, Provenzano R., Francisco   +1 more
core  

Análise citogenética em espécies de Hypostominae Lacépède, 1803 (Osteichthyes, Loricariidae) da bacia dos rios Uruguai e Paraná : enfoque biogeográfico e filogenético [PDF]

, 2014
Orientador: Prof. Dr. Vladimir Pavan MargaridoTese (doutordo em Biologia Comparada) - Universidade Estadual de Maringá, 2014RESUMO: Hypostomus é o gênero mais especioso de Hypostominae, com variação intraespecífica considerável na morfologia e padrões de
Silva, Vanessa Bueno da
core  

Diversity and chromosomal evolution in the genus Ancistrus Kner, 1854 (Loricariidae: Ancistrini) from three hydrographic basins of Mato Grosso State, Brazil

Neotropical Ichthyology
Cytogenetic analyses were carried out in 117 specimens of seven species of the genus Ancistrus from three hydrographic in Mato Grosso State: Paraguay, Araguaia-Tocantins and Amazon basins.
Sandra Mariotto, Liano Centofante, Orlando Moreira-Filho   +2 more
doaj   +1 more source

Description of Neblinichthys peniculatus, a new species of loricariid catfish from the río Paragua drainage of Venezuela

Neotropical Ichthyology
Neblinichthys peniculatus is described from specimens collected in the río Carapo (río Paragua - río Caroni drainage), which drains the southern flank of Cerro Guaiquinima in southeastern Venezuela.
Jonathan W. Armbruster, Donald C. Taphorn   +1 more
doaj   +1 more source