2020
DOI: 10.11646/zootaxa.4808.3.5
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A new species of Pimelodella Eigenmann & Eigenmann, 1888 (Siluriformes: Heptapteridae) from the Orinoco River basin

Abstract: A new species of Pimelodella is described from western Andean tributaries of the Orinoco River basin. The new species differs from all congeners by a unique set of characters that includes long maxillary barbel, surpassing the dorsal lobe of the caudal fin; relatively short adipose fin (32.8–36.4 of SL); 40–42 total vertebrae; posterior margin of pectoral-fin spine with 12–18 retrorse dentations along basal two thirds; laterosensory canal foramina of dentary and preopercle large and externally conspicu… Show more

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Cited by 1,174 publications
(5 citation statements)
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“…The specimens were separated by morphotypes and fixed in a 10% formaldehyde solution, and finally preserved in 70% alcohol. For the identification of the collected species, specialized taxonomic keys, original descriptions, and taxonomic revisions were used (Eigenmann & Henn, 1914;Isbrücker and Nijssen, 1988;Vari, 1984Vari, , 1989Vari, , 1991Vari, , 1992aVari, , 1992bVari, Castro, Raredon, 1995;Silfvergrip, 1996;Lasso and Machado-Allison, 2000;Taphorn, 2003;Malabarba, 2004;Bührnheim and Malabarba, 2007;Buitrago-Suárez and Burr, 2007;Sidlauskas, Garavello, Jellen, 2007;Benine and Lopes, 2008;Menezes and Lucena, 2014;Crampton, de Santana, Waddell, Lovejoy, 2016;Lima, 2017;Marinho and Menezes, 2017;Armbruster, Van der Sleen, Lujan, 2018;Bockmann and Slobodian, 2018; Birin- delli and Akama, 2018; Birindelli and de Souza, 2018;Covain and Van der Sleen, 2018;Kullander, López-Fernández, Van der Sleen, 2018;Mattox, Van der Sleen, Toledo-Piza, 2018;Reis and Van der Sleen, 2018;Sidlauskas and Birindelli, 2018;Van der Sleen and Lima, 2018;Van der Sleen, Netto-Ferreira, Malabarba, 2018;Cortés-Hernández, DoNascimiento, Ramírez-Gil, 2020;Lima, 2022). The validation of the taxonomic status of the species was corroborated in the Eschmeyer's Catalog of Fishes (Fricke, Eschmeyer, Van der Laan, 2023).…”
Section: Sampling and Data Collectionmentioning
confidence: 99%
“…The specimens were separated by morphotypes and fixed in a 10% formaldehyde solution, and finally preserved in 70% alcohol. For the identification of the collected species, specialized taxonomic keys, original descriptions, and taxonomic revisions were used (Eigenmann & Henn, 1914;Isbrücker and Nijssen, 1988;Vari, 1984Vari, , 1989Vari, , 1991Vari, , 1992aVari, , 1992bVari, Castro, Raredon, 1995;Silfvergrip, 1996;Lasso and Machado-Allison, 2000;Taphorn, 2003;Malabarba, 2004;Bührnheim and Malabarba, 2007;Buitrago-Suárez and Burr, 2007;Sidlauskas, Garavello, Jellen, 2007;Benine and Lopes, 2008;Menezes and Lucena, 2014;Crampton, de Santana, Waddell, Lovejoy, 2016;Lima, 2017;Marinho and Menezes, 2017;Armbruster, Van der Sleen, Lujan, 2018;Bockmann and Slobodian, 2018; Birin- delli and Akama, 2018; Birindelli and de Souza, 2018;Covain and Van der Sleen, 2018;Kullander, López-Fernández, Van der Sleen, 2018;Mattox, Van der Sleen, Toledo-Piza, 2018;Reis and Van der Sleen, 2018;Sidlauskas and Birindelli, 2018;Van der Sleen and Lima, 2018;Van der Sleen, Netto-Ferreira, Malabarba, 2018;Cortés-Hernández, DoNascimiento, Ramírez-Gil, 2020;Lima, 2022). The validation of the taxonomic status of the species was corroborated in the Eschmeyer's Catalog of Fishes (Fricke, Eschmeyer, Van der Laan, 2023).…”
Section: Sampling and Data Collectionmentioning
confidence: 99%
“…Pimelodella is certainly one of the most daunting taxonomic bottlenecks in Neotropical fishes. After Eigenmann (1917) revision, few species of Pimelodella have been subject to rigorous taxonomic studies (e.g., Mees, 1983;Leiva C., 2005;Souza-Shibatta et al, 2013;Slobodian et al, 2017;Slobodian & Pastana, 2018;Conde-Saldaña et al, 2019;Cortés-Hernández et al, 2020), in such a way that most species of the genus still await proper taxonomic and geographic delimitation.…”
Section: Taxonomic Considerationsmentioning
confidence: 99%
“…Los miembros de este género se distribuyen desde Costa Rica hasta Argentina (Slobodian et al, 2021), habitando una gran variedad de ambientes acuáticos, como cuevas, lagos, ríos y sistemas kársticos (Eigenmann, 1917;Fernández-Yépez, 1950;Trajano, 1991;Trajano et al, 2004;Bockmann y Slobodian, 2013). Sin embargo, la taxonomía de este género es problemática, ya que carece de una diagnosis filogenética (Cortés-Hernández et al, 2020). Adicionalmente, la morfología conservada y las distribuciones supuestamente amplias de las especies dificultan aún más la taxonomía del género (Slobodian et al, 2017(Slobodian et al, , 2018Conde-Saldaña et al, 2019;Cortés-Hernández et al, 2020;Slobodian et al, 2021).…”
Section: Introductionunclassified
“…Sin embargo, la taxonomía de este género es problemática, ya que carece de una diagnosis filogenética (Cortés-Hernández et al, 2020). Adicionalmente, la morfología conservada y las distribuciones supuestamente amplias de las especies dificultan aún más la taxonomía del género (Slobodian et al, 2017(Slobodian et al, , 2018Conde-Saldaña et al, 2019;Cortés-Hernández et al, 2020;Slobodian et al, 2021).…”
Section: Introductionunclassified
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