Pachystomias microdon (Günther, 1878)

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 : 43-44

Pachystomias microdon (Günther, 1878)

(Fig. 12D)

Diagnosis. Same as for the genus.

Geographical distribution. Circumglobal, from 58ºN to 40ºS (Gibbs, Barnett,

1990; Harold, 2003; Stevenson et al., 2009; Kenaley, Stewart, 2015g; Orlov, Tokranov,

2019; Sutton et al., 2020; Love et al., 2021). In the western Atlantic , the species was reported from off Canada to the Caribbean Sea (Morrow, Gibbs, 1964; McAllister, 1990; McEachran, Fechhelm, 1998; Moore et al., 2003). Pachystomias microdon is reported for the first time in the western South Atlantic based on nine specimens collected off Rio Grande do Norte State (including the seamounts), the Rocas Atoll , and the Fernando de Noronha Archipelago in the Brazilian EEZ, between depths of 610 and 1,030 m ( Fig. 7F ) .

Specimens examined. 9 (39–181 mm SL): NPM 4587, 1 (168 mm), AB2#39; NPM 4588, 2 (173–176 mm), AB2#54B; NPM 4589, 1 (181 mm), AB2#44A; NPM 4591, 1 (85 mm), AB2#49A; NPM 4592, 1 (150 mm), AB2#52A; NPM 4594, 2 (39–109 mm), AB2#53A; NPM 4625, 1 (155 mm), AB2#41A.

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.