Borostomias elucens (Brauer, 1906)

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 : 34-35

Borostomias elucens (Brauer, 1906)

( Fig. 9A )

Diagnosis. Borostomias elucens can be distinguished from congeners by the fang-like premaxillary teeth; 13–16 anal-fin rays; ventral adipose fin absent; chin barbel with spherical terminal bulb, without filaments; AC 12–14, forming and arch behind anal-fin base; VAV 14–15; VAL 18 or less (Gibbs, 1964; Sutton et al., 2020).

Geographical distribution. Cincumglobal in tropical and subtropical waters (Gibbs, 1964; Bekker et al., 1975; Yamamoto, 1982; Gibbs, 1990a; Aizawa, 2002; Shinohara et al., 2005; Liao et al., 2006; Tatsuta et al., 2014; Wang et al., 2019; Sutton et al., 2020). In the western Atlantic , the species is reported from the Gulf of Mexico , Caribbean Sea , off French Guiana , and off northeastern Brazil outside the EEZ (Parin et al., 1974; Regan, Trewavas, 1929; Fujii, 1983b; Harold, 2003; Olivar et al., 2017; Judkins, Haedrich, 2018). Borostomias elucens is therefore reported for the first time in the Brazilian EEZ based on specimens collected off Rio Grande do Norte State (including the seamounts), the Rocas Atoll , and the Fernando de Noronha Archipelago , between depths of 650 and 1,113 m ( Fig. 7C ) .

Specimens examined. 45 (46–299 mm SL): NPM 4299, 6 (96–196 mm), AB2#44A; NPM 4300, 8 (54–288 mm), AB2#42A; NPM 4302, 4 (91–299 mm), AB2#59A; NPM 4303, 3 (72–164 mm), AB2#49A; NPM 4391, 14 (46–284 mm), AB2#39; NPM 4399, 13 (47–278 mm), AB2#53A.

Figures

FIGURE 7 | Records of species of Phosichthyidae (A), Astronesthinae (B, C), Chauliodontinae (D), Stomiinae (E), and Malacosteinae (F) collected during the ABRACOS expeditions off northeastern Brazil. Oceanic islands: RA, Rocas Atoll; FN, Fernando de Noronha Archipelago.

FIGURE 9 | A. Borostomias elucens, NPM 4299, 196 mm SL; B. Heterophotus ophistoma, NPM 4400, 223 mm SL. Scale bars = 10 mm.