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Neotropical Ichthyology

Print version ISSN 1679-6225On-line version ISSN 1982-0224

Abstract

GAMARRA, Suelen P.; CALEGARI, Bárbara B.  and  REIS, Roberto E.. A new species of Curculionichthys (Siluriformes: Loricariidae) from the north edge of the Brazilian Shield, lower Amazon basin. Neotrop. ichthyol. [online]. 2019, vol.17, n.2, e190001.  Epub May 02, 2019. ISSN 1679-6225.  http://dx.doi.org/10.1590/1982-0224-20190001.

A new species of Curculionichthys is described from the rio Curuá-Una basin, in the northern edge of the Brazilian Shield, State of Pará, Brazil. The new species is diagnosed from congeners by possessing a single rostral plate, by having darkened tooth-crowns, and by a series of morphometric and meristic data. A close examination of the species of Curculionichthys revealed the presence of hyperthrophied odontodes on both dorsal and ventral margins of the snout tip, which are illustrated by electronic microscopy. A discussion is provided on possible phylogenetic relationships of the new taxon. The new species is provisionally accessed as Least Concern (not threatened).

Keywords : Cascudinho; Fishes; Neotropical; Systematics; Taxonomy.

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