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| Pristella ariporo
Conde-Saldaña, Albornoz-Garzón, García-Melo, Villa-Navarro, Mirande & Lima, 2019
DOI: 10.1643/CI-18-147
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Abstract
A new species of Pristella is described from the Río Meta drainage, Río Orinoco basin, Colombia. Pristella ariporo, new species, is described as the second known species of the genus and differs from P. maxillaris by lacking maxillary teeth, possessing all teeth of premaxilla and dentary conical, by the absence of a dark blotch on the pelvic fin and the absence of a humeral blotch. The evaluation of the relationships of the new taxon within Characidae through an extensive phylogenetic analysis recovered Pristella as a monophyletic clade, sister to Bryconella pallidifrons. A new diagnosis of Pristella is provided. Hyphessobrycon axelrodi, the only species of this genus possessing only conical teeth, may actually be a species of Pristella.
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| Fig. 2. Pristella ariporo, holotype, CZUT-IC 19972, 29.7 mm SL, female, Colombia, Casanare, Maní, La Porfía, Río Ariporo. |
Genus Pristella Eigenmann, 1908
Pristella Eigenmann, 1908: 99.
Type species: Holopristes riddlei Meek, 1907. Type by original designation (also by monotypy). Gender: feminine.
Pristella ariporo, new species
Etymology.—The specific name, ariporo, comes from the Río Ariporo drainage, where the first specimens of this species were found. The word ‘‘ariporo’’ is probably derived from some indigenous language, but we were unable to trace its origin or meaning. The Río Ariporo is an important tributary of the Río Casanare because of its extensive wetlands, which help to maintain a rich biodiversity and the connectivity among regional fish communities. A noun in apposition.
Cristhian C. Conde-Saldaña, Juan G. Albornoz-Garzón, Jorge E. García-Melo, Francisco A. Villa-Navarro, J. Marcos Mirande and Flávio C. T. Lima. 2019. A New Pristella (Characiformes: Characidae) from the Río Orinoco Basin, Colombia, with A Redefinition of the Genus. Copeia. 107(3); 439-446. DOI: 10.1643/CI-18-147
Una nueva especie de Pristella es descrita para la cuenca del Río Meta, cuenca del R´ıo Orinoco, Colombia. Pristella ariporo, nueva especie, es descrita como la segunda especie conocida del genero y difiere de ´ P. maxillaris por la ausencia de dientes maxilares, todos los dientes de la premaxila y dentario conicos, ausencia de una mancha oscura en la aleta ´ pelvica y ausencia de mancha humeral. La evaluaci ´ on de las relaciones del nuevo tax ´ on a trav ´ es de un amplio ana ´ ´lisis filogenetico de Characidae, recuper ´ o a ´ Pristella como un clado monofiletico, formando el grupo hermano de ´ Bryconella pallidifrons. Se proporciona una nueva diagnosis para Pristella. Se sugiere que Hyphessobrycon axelrodi, la unica especie de ´ este genero que presenta s ´ olo dientes c ´ onicos, es una especie de ´ Pristella.