First record of genus Imparfinis from a northeastern coastal Brazilian river basin: I. borodini Mees & Cala, 1989 in Rio de Contas, Bahia

Imparfinis borodini Mees & Cala, 1989 is recorded in low population abundance in the upper Paraná, Tocantins and São Francisco river drainages according to the scientific literature and available collection data, but it has not been previously recorded from a coastal Brazilian river. Herein, the geographic range of this species is extended to the Rio de Contas basin in northeastern Brazil. This represents the first record in a coastal system. Additionally, I. borodini was captured in the middle Rio São Francisco at Barreiras. Both new records are the first from Bahia state, Northeastern Brazil.