Sternoptyx pseudobscura Baird, 1971

Villarins, Bárbara T., Dario, Fabio Di, Eduardo, Leandro N., Lucena-Frédou, Flávia, Bertrand, Arnaud, Prokofiev, Artem M. & Mincarone, Michael M., 2022, Deep-sea dragonfishes (Teleostei: Stomiiformes) collected from off northeastern Brazil, with a review of the species reported from the Brazilian Exclusive Economic Zone, Neotropical Ichthyology (e 220004) 20 (2), pp. 1-78 : 23-24

publication ID

https://doi.org/ 10.1590/1982-0224-2022-0004

persistent identifier

https://treatment.plazi.org/id/EC2487AA-EA1E-C514-65EF-FC66FA5C56DA

treatment provided by

Felipe

scientific name

Sternoptyx pseudobscura Baird, 1971
status

 

Sternoptyx pseudobscura Baird, 1971 View in CoL

( Fig. 5H View FIGURE 5 )

Diagnosis. Sternoptyx pseudobscura differs from congeners by the SAN distinctly elevated, positioned higher or near mid-trunk line; posterior anal-fin pterygiophores nearly as long as the anterior ones; 9–11 dorsal-fin rays; usually 29 vertebrae, occasionally 27, 28, 30 or 31 (Baird, 1971, 1986; Borodulina, 1978; Badcock, Baird, 1980; Lima et al., 2011).

Geographical distribution. Circumglobal in tropical and temperate waters, between 40ºN and 40ºS (Baird, 1971; Borodulina, 1977, 1978; Quéro et al., 1990b; Harold, 2003; Lima et al., 2011; Sutton et al., 2020; Love et al., 2021). In the western Atlantic , the species is reported from off Canada to Brazil, including the Gulf of Mexico and the Caribbean Sea (Baird, 1971; Uyeno, Aizawa, 1983; McAllister, 1990; Harold, 2003; Milkova et al., 2016; Judkins, Haedrich, 2018; Ramírez et al., 2019). In Brazilian waters, S. pseudobscura was previously reported off the northeastern coast and adjacent oceanic islands, and from Bahia to Rio de Janeiro States , with additional records outside the Brazilian EEZ off the northeast and south regions (Baird, 1971; Borodulina, 1978; Menezes et al., 2003; Braga et al., 2007; Costa, Mincarone, 2010; Lima et al., 2011; Eduardo et al., 2018a, 2020a; Judkins, Haedrich, 2018). The species is reported here based on specimens collected between depths of 520 and 1,113 m off Paraíba, Pernambuco, and Rio Grande do Norte States, including the seamounts, in addition to the Fernando de Noronha Archipelago ( Fig. 3F View FIGURE 3 ) .

Specimens examined. 58 (13–58 mm SL): NPM 4101, 4 (46–54 mm), AB2#21; NPM 4103, 1

(51 mm), AB2#39; NPM 4104, 4 (36–51 mm), AB2#16; NPM 4108, 15 (22–59 mm), AB2#59A;

NPM 4117, 2 (30–45 mm), AB2#58A; NPM 4153, 5 (39–45 mm), AB2#54B; NPM 4159, 12 (17– 56 mm), AB2#42A; NPM 4214, 1 (55 mm), AB2#60B; NPM 4468, 14 (13–42 mm), AB2#44A.

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