The previous records of the genus Eptatretus from the western Atlantic are restricted to Central America and adjacent waters. The first record of the genus Eptatretus in the southwest Atlantic is presented, based on a new seven-gilled species caught in the Brazilian coast
and described as E. menezesi. This new species is compared with E. caribbeaus, the only seven-gilled species of the Atlantic that has a 3-cusp multicusp on both anterior and posterior sets of cusps.
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