A new species of armored catfish Parotocinclus (Siluriformes: Loricariidae) from the rio Parnaíba basin, northeastern, Brazil

This dataset contains the digitized treatments in Plazi based on the original journal article Ramos, Telton P. A., Lima, Sergio M. Q., da Costa Ramos, Robson T. (2017): A new species of armored catfish Parotocinclus (Siluriformes: Loricariidae) from the rio Parnaíba basin, northeastern, Brazil. Neotropical Ichthyology 15 (2), No. e 160153: 1-8, DOI: 10.1590/1982-0224-20160153, URL: dx.doi.org/10.1590/1982-0224-20160153 Recent taxonomic studies indicated the presence of several undescribed species in the rio Parnaíba basin.

Among those, a new species of Parotocinclus endemic of this drainage is herein described. It differs from most of its congeners, including the sympatric P. haroldoi and P. cearensis, by a vestigial or rudimentary adipose fin (vs. conspicuous adipose fin). This character is also present in P. bidentatus and P. muriaensis (both from the rio Paraíba do Sul basin, southeastern Brazil), P. spilurus (rio Jaguaribe basin, northeastern Brazil), P. seridoensis (rio Piranhas-Açu basin, northeastern Brazil), P. halbothi (rios Trombetas and Marowijne basins, northern Brazil and Suriname) and P. dani (from rio Tapajós in Mato Grosso State, Brazil).