Richard P. Vari and Bárbara B. Calegari
Abstract
Analysis of specimens of the auchenipterid catfish genus Tatia collected in the rio Teles Pires, a tributary of the rio Tapajós,
along the border between the states of Pará and Mato Grosso, Brazil, revealed it to be an undescribed species. This new
species is distinguished from all congeners with the exception of T. carolae and T. musaica by the intense, clearly demarcated,
dark coloration on the dorsal and to varying degrees lateral and sometimes ventrolateral portions of the body versus the very
lightly colored regions which are translucent in life on the remainder of the body. Various details of head, body and dorsal
and caudal-fin pigmentation along with meristic and morphometric features distinguish the new species from T. carolae and
T. musaica. The new species provides further evidence that the upper and middle rio Tapajós is a region of ichthyofaunal
endemism.
Quelle: Neotropical Ichthyology, 2014, DOI: 10.1590/1982-0224-20130193 (pdf, öffentlich)
Neu in der Datenbank: Tatia melanoleuca
