Deep-sea ophidiiform fishes collected on the Brazilian continental slope, between 11 ° and 23 ° S Author Mincarone, Michael M. Museu Oceanográfico Univali, Universidade do Vale do Itajaí, CP 360, 88302 - 202, Itajaí, SC, Brazil. E-mail: mincarone @ univali. br Natural History Museum of Denmark, Zoological Museum, University of Copenhagen, Universitetsparken 15, DK- 2100 Copenhagen Ø, Denmark. E-mail: jgnielsen @ snm. ku. dk Universidade Federal do Estado do Rio de Janeiro, Departamento de Ecologia e Recursos Marinhos, Av. Pasteur, 458, sala 410, Urca, 22290 - 240, Rio de Janeiro, RJ, Brazil. E-mail: pauloascosta @ uol. com. br Author Nielsen, Jørgen G. Author Costa, Paulo A. S. Author Rv, Rv text Zootaxa 2008 2008-05-16 1770 1 41 64 https://biotaxa.org/Zootaxa/article/view/zootaxa.1770.1.2 journal article 10.11646/zootaxa.1770.1.2 1175­5334 5123954 0F66DF83-9427-4D01-A0A8-6CC4B2A81F32 Monomitopus agassizii ( Goode & Bean 1896 ) ( Fig. 3M ) Material examined. 28 specimens , 149–203 mm SL: MOVI 38699-38702 (4, 177– 201 mm ), E-0522; MOVI 38703-38710 (8, 156– 203 mm ), E-0517; MOVI 38717-38720 (4, 188– 195 mm ), E-0503; MOVI 38721- 38727 (7, 179– 192 mm ), E-0499; MOVI 38742 ( 1, 186 mm ), E-0504; MOVI 38743-38745 (3, 150– 186 mm ), E-0507; MOVI 38797 ( 1, 149 mm ), AG1 . Diagnosis. Head rather deep and downward inflected with poorly ossified opercular bones, anterior gill arch with 12–19 developed rakers on lower arm; 7–10 scales in an oblique row between origin of dorsal fin and lateral line. Distribution. Western Atlantic ( Nielsen et al. 1999 ). Remarks. First record in Brazilian waters. Collected from several stations off Bahia and Rio de Janeiro , at depths from 266 to 1275 m . Previously known from 530 to 1010 m ( Nielsen et al. 1999 ).