Results 61 to 70 of about 6,049 (231)

Molecular phylogenetics, a new classification, and a new genus of the Neotropical fish family Anostomidae (Teleostei: Characiformes) [PDF]

open access: yesNeotropical Ichthyology
Phylogenetic reconstruction of the Neotropical freshwater fish family Anostomidae using multilocus sequence data from 97 species supports the recognition of three subfamilies: Leporellinae with one genus, Anostominae with six genera, and Leporininae with
Brian L. Sidlauskas   +8 more
doaj   +1 more source

Revista de Vertebrados de la Estación Biológica de Doñana [PDF]

open access: yes, 1988
Contribución al estudio de la bermejuela Rutilus arcasi, Steindachner, 1866 de la cuenca del Júcar (Osteichthyes: Cyprinidae)II. Edad y crecimientoSobre la taxonomía de Barbus comiza Steindachner, 1865 (Ostariophysi: Cyprinidae)Fenología de una comunidad
Barone, Rubén   +32 more
core  

Differential expression and novel permeability properties of three aquaporin 8 paralogs from seawater-challenged Atlantic salmon smolts [PDF]

open access: yes, 2013
Summary Aquaporins may facilitate transepithelial water absorption in the intestine of seawater (SW) acclimated fish. Here we have characterized three full-length aqp8 paralogs from Atlantic salmon (Salmo salar).
Cerdà, Joan   +5 more
core   +1 more source

The Distribution of the Fishes of the Order Ostariophysi [PDF]

open access: yesBijdragen tot de Dierkunde, 1922
The Ostariophysi are Teleostean Fishes in which the air bladder is connected with the internal ear by a chain of ossicles, the Weberian ossicles, which are modified elements of the anterior vertebrae. Although the order is a large and varied one it is undoubtedly natural, and its importance in Zoogeography arises from the fact that it is dominant in ...
openaire   +2 more sources

Evolutionary Trends of the Pharyngeal Dentition in Cypriniformes (Actinopterygii: Ostariophysi)

open access: yesPLoS ONE, 2010
The fish order Cypriniformes is one of the most diverse ray-finned fish groups in the world with more than 3000 recognized species. Cypriniformes are characterized by a striking distribution of their dentition: namely the absence of oral teeth and presence of pharyngeal teeth on the last gill arch (fifth ceratobranchial).
Pasco-Viel, Emmanuel   +6 more
openaire   +7 more sources

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

open access: yesNeotropical 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   +1 more
doaj   +1 more source

Iterative taxonomy reveals a new species of Cambeva (Siluriformes: Trichomycteridae) with intraspecific variation from the rio Piquiri and Ivaí basin, upper rio Paraná basin, Brazil [PDF]

open access: yesNeotropical Ichthyology
A new species of Cambeva occurring in the rio Piquiri and Ivaí, upper rio Paraná basin, Brazil, is described using the combination of morphological and molecular data. The new species is distinguished from most congeners by the presence of a notch in the
Isadora Carolina Martins   +3 more
doaj   +1 more source

New species of Metynnis Cope, 1878 (Characiformes: Characidae) from the rio Paraguay basin, Mato Grosso State, Brazil

open access: yesNeotropical Ichthyology
A new species of Metynnis is described from the rio Cuiabá and rio Manso drainages, in the upper rio Paraguay basin, Mato Grosso State, Brazil. This laterally compressed species, which rarely exceeds 140 mm in SL, is readily distinguished from other ...
Carla S. Pavanelli   +2 more
doaj   +1 more source

Comparative gross encephalon morphology in Callichthyidae (Teleostei: Ostariophysi: Siluriformes) [PDF]

open access: yesNeotropical Ichthyology, 2018
ABSTRACT Callichthyidae comprises the subfamilies Callichthyinae and Corydoradinae, both of which are morphologically distinct and monophyletic. Although there is consensus regarding the monophyly of the family, the relationships of about 80% of its species, currently included in the genus Corydoras, remain poorly known.
Fabio M. Pupo, Marcelo R. Britto
openaire   +4 more sources

Complete mitochondrial DNA ofHoplias intermedius(Günther, 1864) (Ostariophysi: Characiformes: Erythrinidae) [PDF]

open access: yesMitochondrial DNA Part B, 2016
Mitochondrial complete genome (mtDNA) of Hoplias intermedius, commonly known as "traírão" is presented. DNA from a muscle tissue sample was sequenced by next-generation sequencing. To corroborate the results, phylogenetic analysis was performed with MEGA6 to compare the complete mitogenome of H.
Núñez Rodriguez, Daniela   +7 more
openaire   +2 more sources

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