Eustomias minimus Clarke, 1999

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 : 51-52

Eustomias minimus Clarke, 1999

( Fig. 15E )

Diagnosis. Eustomias minimus differs from congeners by the presence of 2 pectoral-fin rays; chin barbel with a single, simple and thin branch arising from the stem, branch length barely half that of distal barbel; terminal filaments of the chin barbel simple and short, not or barely reaching beyond bulb tip (Clarke, 1999).

Geographical distribution. Previously known from four poorly preserved specimens, including the holotype, collected in the central and western equatorial Pacific (Clarke, 1999). Eustomias minimus is reported for the first time in the Atlantic Ocean based on one specimen collected off the Fernando de Noronha Archipelago in the Brazilian EEZ, at 780 m depth ( Fig. 14C ) .

Remarks. Morphometric and meristic data of the specimen examined are within the ranges reported for the species (Clarke, 1999), except for the barbel length, which is slightly shorter (7.5% SL) than in the original description (11–12.7% SL).

Specimen examined. 1: NPM 4881, 1 (69 mm), AB2#42A.

Figures

FIGURE 14 | Records of species of the Melanostomiinae (A–F) collected during the ABRACOS expeditions off northeastern Brazil. Oceanic islands: RA, Rocas Atoll; FN, Fernando de Noronha Archipelago.

FIGURE 15 | A. Eustomias bibulbosus, NPM 4642, 87 mm SL; B. Eustomias braueri, NPM 4816, 56 mm SL; C. Eustomias brevibarbatus, NPM 4646, 95 mm SL; D. Eustomias enbarbatus, NPM 4819, 60 mm SL; E. Eustomias minimus, NPM 4881, 69 mm SL; F. Eustomias schmidti, NPM 4882, 68 mm SL. Scale bars = 10 mm.