Published online by Cambridge University Press: 13 July 2011
The rare ophichthid eel Asarcenchelys longimanus is reported for the first time from Bahia State, north-eastern Brazil. To date, only two specimens of A. longimanus, the holotype and a paratype, were known. The new finding extends its distribution to about 2400 km southwards along the Brazilian coastline and provides a new maximum size for the species. Comparisons of the morphometric and meristic data between our specimens and those used in the original description are provided.