Sternoptyx pseudobscura Baird 1971 (Fig. 2 H; Table 3) Material examined. 16 specimens (17.2–51.4 mm SL): MNRJ 30153, 1(42.1 mm), E-0524; MNRJ 30159, 1(31.6 mm), E-0537; MNRJ 30167, 8(28.7–51.4 mm), D-0505; MNRJ 30349, 1(17.2 mm), AG2-17.2; MNRJ 30354, 1(36.9 mm), AG2-13.1; MNRJ 30357, 1(33.5 mm), AG1-1; MNRJ 30162, 1(26.4 mm), E-0547; MNRJ 30163, 1(28.1 mm), E-0540; MNRJ 30363, 1(38.5 mm); AG2-3.2. Diagnosis. Sternoptyx pseudobscura can be differentiated from its congeners by the following combination of characters: SAN photophores positioned at about 1.5 to 2.5 times in trunk depth, raised to mid-trunk line in Atlantic populations; trunk height greater than trunk length; vertebrae 29, rarely 28 or 30; pectoral fin without pigmentation; dorsal-fin base usually smaller than dorsal-blade base, occasionally equal. Meristic description. Fin rays: D 10–11; A 13–15; P 1 10–11; P2 5. Gill rakers: 7–8 (4–5+1+1–3). Photophores: BR 5; I 5; AB 10; PAN 3; AN 3; SC 4. Distribution. Circumglobal in tropical and subtropical waters. Remarks. Sternoptyx pseudobscura was first reported in Brazilian waters by Lima (2010), based on material collected in Campos Basin, off Rio de Janeiro State. Specimens previously reported in the western South Atlantic were collected outside of the Brazilian Exclusive Economic Zone (Badcock & Baird 1980).

Published as part of Lima, Adriano T., Costa, Paulo A. S., Braga, Adriana C., Nunan, Gustavo W. A. & Mincarone, Michael M., 2011, Fishes of the family Sternoptychidae (Stomiiformes) collected on the Brazilian continental slope between 11 ° and 23 ° S, pp. 34-48 in Zootaxa 2742 on page 44, DOI: 10.5281/zenodo.206673