Levinsenia gracilis

• Main Author: Sikorski, Andrey
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Paraonidae; Levinsenia; Levinsenia gracilis; Barents Sea; Finnmark; Greenland; Northern Norway
• Online Access: https://doi.org/10.5281/zenodo.6050877; http://treatment.plazi.org/id/5B0CE5039468FB4884824FADFB067A6B

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 ...