Parotocinclus jacksoni, a new hypoptopomatine catfish from the Rio Mamanguape basin
Posted: 22 Jul 2021, 02:48
Telton P. A. Ramos,Silvia Y. Lustosa-Costa,Luciano F. Barros-neto,José E. L. Barbosa. (2021). Parotocinclus jacksoni, a new hypoptopomatine catfish (Siluriformes: Loricariidae) from the Rio Mamanguape basin, northeastern Brazil. Journal of Fish Biology. 16 July 2021. https://doi.org/10.1111/jfb.14855
https://onlinelibrary.wiley.com/doi/10.1111/jfb.14855
https://onlinelibrary.wiley.com/doi/10.1111/jfb.14855
Abstract
A new species of Parotocinclus is described from the Rio Mamanguape basin, in the State of Paraíba, Northeastern Brazil. The new species can be distinguished from all of its congeners, except for P. bahiensis, P. cesarpintoi, P. jumbo, P. nandae and P. spilosoma, by the presence of an abdomen covered by a few small and dispersed platelets (vs. an abdomen entirely covered by large plates in adult individuals or the absence of plates in that region). The new species differs from those mentioned above with respect to several features, such as an exposed pectoral girdle and supporting odontodes medially and laterally; the number of premaxillary and dentary teeth; odontodes covering only the lateral portion of the cleithrum and the absence of irregular golden lines on the head and body (colour in vivo). The new species was collected only in the upper and middle portions of the Rio Mamanguape basin, suggesting a geographic distribution restricted to the Caatinga biome.