Polaruschakov Pettibone 1976

• Main Authors: Bonifácio, Paulo, Menot, Lénaïck
• Format: Text
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Phyllodocida; Polynoidae; Polaruschakov; Arctic; Antarctic; Arctic Ocean; Pacific; McIntosh; Noto; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.5240835; https://zenodo.org/record/5240835

POLARUSCHAKOV PETTIBONE, 1976 Polaruschakov Pettibone, 1976: 55. – Uschakov, 1982: 124 (translated version). – Jirkov, 2001: 133. – Barnich & Fiege, 2003: 92. Type species: Macellicephala polaris Uschakov, 1957. Diagnosis (emended): Short body, dorsoventrally flattened, up to 25 segments. Frontal filaments absent. Eyesabsent.Medianandlateralantennaeabsent.Facial tubercle absent. Reduced palpophores. Tentacular segment fused with prostomium, tentaculophores without acicula or chaetae. Pharynx with seven pairs of distal papillae; two pairs of jaws with smooth margins or with a secondary small tooth ( Polaruschakov lamellae sp. nov. and Polaruschakov omnesae sp. nov.). Dorsal tubercles present ( Polaruschakov lamellae sp. nov. and Polaruschakov polaris ) or absent ( Polaruschakov reyssi , Polaruschakov limaae sp. nov. and Polaruschakov omnesae sp. nov.). Elytrophores prominent, up to ten pairs, on segments 2, 4, 5, 7, 9, 11, 13, 15, 17 and 19. Parapodia subbiramous, notopodia shorter than neuropodia; noto- and neuropodia with elongate acicular lobe; tips of noto- and neuroaciculae not penetrating epidermis. Notochaetae distally with spinous rows; notochaetae more slender than neurochaetae. Neurochaetae numerous, serrated along both margins. From segment 3, ventral cirri inserted medially on neuropodia. Nephridial papillae small. Pygidium small, with terminal anus. Remarks: The diagnosis of genus Polaruschakov is emended to include the following characters observed in the new species described below: jaws with small secondary tooth on margin and absence of flattened scale-like structures on segment 6. As highlighted for Hodor gen. nov., this feature, occasionally present on anterior segments, is likely to be a reproductive character, as suggested by its presence or absence without pattern among the taxa belonging to the Anantennata clade (i.e. without median and lateral antennae). : Published as part of Bonifácio, Paulo & Menot, Lénaïck, 2019, New genera and species from the Equatorial Pacific provide phylogenetic insights into deep-sea Polynoidae (Annelida), pp. 555-635 in Zoological Journal of the Linnean Society 185 on page 613 : {"references": ["Pettibone MH. 1976. Revision of the genus Macellicephala McIntosh and the subfamily Macellicephalinae Hartmann- Schroder (Polychaeta: Polynoidae). Washington: Smithsonian Institution Press.", "Uschakov PV. 1982. Polychaetes of the suborder Aphroditiformia of the Arctic Ocean and the northwestern part of the Pacific Ocean. Families Aphroditidae and Polynoidae. Mnogoshchetinkovyye Chervil (Fauna of the USSR, Polychaeta) 2: 1 - 272.", "Jirkov IA. 2001. Polychaeta of the Arctic Ocean. Moscow: Yanus-K Press.", "Barnich R, Fiege D. 2003. The Aphroditoidea (Annelida: Polychaeta) of the Mediterranean Sea. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 559: 1 - 167.", "Uschakov PV. 1957. On the Fauna of polychaete worms (Polychaeta) from the Arctic and Antarctic. Zoologicheskii Zhurnal Akademiia Nauk SSSR 36: 1659 - 1672."]}