Oneirodes anisacanthus Regan 1925

• Main Authors: Mincarone, Michael Maia, Afonso, Gabriel Vinícius Felix, Di Dario, Fabio, Eduardo, Leandro Nolé, Frédou, Thierry, Lucena-Frédou, Flávia, Bertrand, Arnaud, Pietsch, Theodore Wells
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Lophiiformes; Oneirodidae; Oneirodes; Oneirodes anisacanthus; Greenland
• Online Access: https://doi.org/10.5281/zenodo.10960647; http://treatment.plazi.org/id/5D77BB3E0F22FFE8FD39FC13DE52FDE7

Oneirodes anisacanthus Regan, 1925 (Figs. 1H, 4) Diagnosis. Females of Oneirodes anisacanthus differ from those of its congeners, except O. plagionema , O. kreffti , O. posti , O. rosenblatti , O. dicromischus , O. luetkeni , O. carlsbergi , and those of the O. schmidti group, by the presence of a well-developed lateral escal appendage ( vs . esca with lateral appendage minute or absent). Oneirodes anisacanthus differs from O. plagionema by the posterior escal appendage about onethird the length of escal bulb ( vs . posterior escal appendage minute), anterior appendage anterodorsally directed, bearing numerous short filaments, and 2 unpigmented tapering filaments on anterior margin near the distal tip ( vs . anterior appendage narrow, elongate, and anteroventrally directed, bearing a single short distal filament); from O. kreffti and O. posti by the esca without elongate medial appendages ( vs . esca with 2 or 3 medial filaments more than twice the length of escal bulb); from O. rosenblatti and O. dicromischus by the lower jaw with fewer than 90 teeth in specimens greater than 45 mm, fewer than 60 teeth in specimens greater than 25 mm ( vs . lower jaw with more than 90 teeth in specimens greater than 45 mm, more than 60 teeth in specimens greater than 25 mm), 3–9 (usually fewer than 8) teeth on vomer in specimens greater than 25 mm ( vs . 8–14, usually more than 9 teeth); from O. luetkeni and O. carlsbergi by the presence of teeth on the epibranchial of the first gill arch ( vs . epibranchial teeth absent); and from species of the O. schmidti group by the anterior escal appendage internally pigmented, anterolateral appendages absent ( vs . anterior appendage without internal pigment, usually two pairs of filamentous anterolateral appendages) (Pietsch, 1974, 2009; Orr, 1991; Prokofiev, 2014a,b; Ho et al ., 2016; Rajeeshkumar et al ., 2017; Ho, Shao, 2019). Geographical distribution. Oneirodes anisacanthus is widespread in the Atlantic Ocean, with records from off eastern Greenland, the Caribbean Sea, Madeira, ...