ONEIRODIDAE

Mincarone, Michael Maia, Afonso, Gabriel Vinícius Felix, Di Dario, Fabio, Eduardo, Leandro Nolé, Frédou, Thierry, Lucena-Frédou, Flávia, Bertrand, Arnaud & Pietsch, Theodore Wells, 2021, Deep-sea anglerfishes (Lophiiformes: Ceratioidei) from off northeastern Brazil, with remarks on the ceratioids reported from the Brazilian Exclusive Economic Zone, Neotropical Ichthyology 19 (2), pp. 1-28 : 11

ONEIRODIDAE

Females of the Oneirodidae are distinguished by having a short, deep to moderately elongate and laterally compressed body; mouth oblique to nearly horizontal, jaws equal anteriorly; illicium with a bulbous distal light organ; pterygiophore of the illicium usually emerging anteriorly on the snout, extending posteriorly on the back behind the head only in Oneirodes ; top of head usually bearing sharp sphenotic spines, absent only in Chaenophryne and short in Ctenochirichthys ; quadrate and articular spines usually well developed; skin smooth, dermal spines or spinules absent except in Spiniphryne ; 4–8 dorsal-fin rays, 4–7 anal fin-rays, 13–30 pectoral-fin rays; a narrow, spatulate, anterodorsally directed process that overlaps the posterolateral surface of the respective sphenotic present in metamorphosed females; males usually free-living, non-parasitic, but two species apparently with facultative sexual parasitism (Pietsch, 2009).

In addition to the species reported below, three other oneirodids have been recorded in the Brazilian EEZ: Microlophichthys microlophus (Regan, 1925) , collected off Saint Peter and Saint Paul Archipelago ( MCZ 47566, 0º02’N 27º30’W to 0º03’N 27º31’W; MCZ 47567, 1º20’S 27º37’W; Pietsch, 2009); Oneirodes notius Pietsch, 1974 , off Rio Grande do Sul State ( MZUSP 78220, 31º04’S 49º15’W; Figueiredo et al., 2002); and Pentherichthys atratus (Regan & Trewavas, 1932) , collected off Fernando de Noronha Archipelago ( MCZ 42852, 5º42’S 32º25’W; Pietsch, 2009) and Saint Peter and Saint Paul Archipelago ( MCZ 47569, 1º20’S 27º37’W; MCZ 97115, 4º3’12”N 29º37’36”W; Pietsch, 2009) ( Fig. 4 ).

Figures

FIGURE 4 | Records of the Oneirodidae in Brazilian waters: Chaenophryne draco (square), Chaenophryne ramifera (circle), Chaenophryne sp. (pentagon), Dolopichthys sp. (asterisk), Microlophichthys microlophus (upside-down triangle), Oneirodes anisacanthus (star), Oneirodes carlsbergi (triangle), Oneirodes notius (diamond), Pentherichthys atratus (cross). Full symbols represent specimens collected during the ABRACOS surveys and open symbols are records from the literature (see text). Selected Brazilian States and islands are: RN – Rio Grande do Norte, PB – Paraíba, PE – Pernambuco; ES – Espírito Santo, RS – Rio Grande do Sul; SPA – Saint Peter and Saint Paul Archipelago, FN – Fernando de Noronha Archipelago, RA – Rocas Atoll. Dashed line represents the outer limit of the Brazilian Exclusive Economic Zone.