The deep-sea Anguilliformes and Saccopharyngiformes (Teleostei: Elopomorpha) collected on the Brazilian continental slope, between 11 and 23 S Author Melo, Marcelo R. S. Author Nunan, Gustavo W. A. Author Braga, Adriana C. Author Costa, Paulo A. S. text Zootaxa 2009 2234 1 20 journal article 10.5281/zenodo.190386 2d3519b8-8a78-40de-a505-6edb799990cc 1175-5326 190386 Ariosoma sp. ( Fig. 2 C) Material examined. USU 0 0 998, 1 (254.0 mm), MD, 62 CB 103. Distribution. Ariosoma sp. is known from a single specimen identified earlier by Séret and Andreata (1992) as Gnathophis sp. aff. mystax (Delaroche 1809) . Remarks. Ariosoma sp. is being tentatively identified in the genus Ariosoma , despite its lower number of lateral line pores to the level of the anus (e.g. 34 in our specimen vs. 46–52 in A. balearicum ); further material is needed for a more precise identification. Leptocephali of A. balearicum were recorded off Brazil by Castro and Bonecker (2004) , and may represent the species reported herein, since adults of that species were never reported from the area.