Abstract
ABSTRACT A new species of Corydoras is described from the río Madre de Dios basin, Peru. The new species can be distinguished from its congeners by presenting the following features: a longitudinal black stripe along midline of flank; mesethmoid short, with anterior portion poorly developed; serrations on posterior margin of pectoral spine directed towards the tip of the spine; dorsal fin with the region of the first branched ray, including membrane, with concentration of black pigmentation, the remaining areas with irregular black blotches; absence of a vertically elongated black blotch across the eyes; conspicuously rounded moderately-developed black spots on the snout; and ventral expansion of infraorbital 1 moderately developed.
Highlights
The Callichthyidae are small- to medium-sized catfishes that are recognizable by the presence of two longitudinal series of dermal plates on the flanks
The extensive study was published by Nijssen (1970), with the review of the Corydoras species from Suriname
Morphometrics are reported as percentages of standard length (SL) and head length (HL)
Summary
The Callichthyidae are small- to medium-sized catfishes that are recognizable by the presence of two longitudinal series of dermal plates on the flanks. The extensive study was published by Nijssen (1970), with the review of the Corydoras species from Suriname. Nijssen & Isbrücker (1980) carried out a review of Corydoras, making some reformulations in Nijssen’s (1970) species groups, reducing them from nine down to five. The first phylogenetic study encompassing a large number of Corydoras species was conducted by Britto (2003). This work presented an extensive phylogenetic hypothesis which corroborates the paraphyly of Corydoras, revealing nine clearly different lineages of species. Contrary to Britto’s (2003) work, Alexandrou et al (2011) study does not present a taxonomic approach and by this reason they do not proposed any taxonomic change in order to maintain the monophyly of Corydoras. After the analysis of Corydoras specimens from the río Madre de Dios basin, Peru, a new species was revealed, which is described
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
