The Paraonidae (Annelida: Sedentaria) from Norway and adjacent seas, with two new species, four new records, and a redescription of Paraonides nordica Strelzov, 1968 based on type material Author Sikorski, Andrey text Zootaxa 2017 2017-09-14 4320 1 41 67 journal article 32103 10.11646/zootaxa.4320.1.3 97eb2462-e968-4f36-81ab-fc2a832928ae 1175-5326 891538 878A01B5-C37C-4E46-8631-16927888D8D4 Levinsenia gracilis ( Tauber, 1879 ) Aonides gracilis Tauber, 1879 : 115 . Levinsenia gracilis .— Hartley 1981 : 146 ; Gaston 1984 : 2.51–2.53, fig. 2.52; Blake 1996 : 33 –34, fig. 2.1; Hartmann-Schröder 1996 : 386 , fig. 183; Kirkegaard 1996 : 28 –29, fig. 10; Aguirrezabalaga 2012 : 241 –244, figs. 106–107. Paraonis (Paraonis) gracilis .— Pettibone 1963 : 301 –302, fig. 79 a–d. Paraonis gracilis .— Eliason 1920 : 55 –56, fig. 16; Hartman 1957 ; 330–331, pl. 44, figs 4–5; 1969: 74–75, figs 1–3. Paraonis (Paraonides) gracilis .— Monro 1930 : 150 –152, fig. 58. Paraonis gracilis gracilis .— Day 1967 : 566 , fig. 24.4a–b. Tauberia gracilis .— Strelzov 1973 : 127 –133, figs 54–57. Material examined. ZISP 2 /38028; Barents Sea ; 69.8250°N- 46.1833°E ; 77 m ; 24.08.1959 ; one specimen (labelled as Tauberia multibranchiata ). 2876 Finnmark 593; 70.0860°N – 29.0608°E ; 161 m ; 13.09.2003 ; one specimen. 3940 Askeladd Beta SA–02; 71.4750°N – 20.4476°E ; 278 m ; 26.06.2007 ; one specimen. 3940 Askeladd Beta SA–09; 71.4778°N – 20.4462°E ; 274 m ; 27.06.2007 ; one specimen. 5390 G7122/7-1; 71.05°N-22.05°E; 340 m ; 08.09.2015 ; three specimens. 5390 E7122/4-1; 71.05°N-22.05°E; 340 m ; 10.09.2015 ; three specimens. Diagnosis. Antenna and secondary ciliary organs absent. Five to six prebranchial segments. Branchiae arranged in 10–15 pairs; about four times as long as wide. Modified notochaetae absent. Modified neurochaetae as long, gently curved hooks bearing a ridge on the convex edge. Distribution. Eastern Atlantic, from Greenland ( Strelzov 1973 ) to Portugal ( Gil & Sardà 1999 ), including Northern Norway ( Oug 2000 ) and several locations of the North Sea close to Norway ( Hartley 1981 ). Barents Sea ( Bilyard & Carey 1980 ). Western Atlantic from Western Greenland ( Blake & Dean 1973 ) and New England ( Pettibone 1963 ) to Caribbean ( Díaz-Díaz et al . 2009 ) and Uruguay ( Strelzov 1973 ). Mediterranean ( Laubier & Ramos 1974 ). Eastern Pacific, from Oregon ( Fauchald & Hancock 1981 ) to Panama ( Aguado & López 2003 ); Japan ( Imajima 1997 ). Arctic, from Jan Mayen ( Bakken et al . 2010 ) to the Chukchi Sea ( Strelzov 1973 ) and Canadian Arctic ( Stewart et al . 1985 ). Antarctic ( Sicinski 2004 ). Southern Africa ( Day 1967 ).