Aricidea (Aricidea) wassi Pettibone, 1965: 135 –138, figs. 9–11; Strelzov 1973: 62 –64, fig. 23D–E; Katzmann & Laubier 1975: 582 –584, fig. 5; Hartley 1981: 136; Gaston 1984: 2.13, fig. 2.8; Blake 1996: 44 –45, fig. 2.7; Aguirrezabalaga 2012: 229 – 230, figs. 98–99.
Aricidea wassi.— Imajima 1973: 265 –267, fig. 6.
Material examined. 6244 Oseberg C OSC–05; 60.6124°N–2.7717°E; 105 m; 28.05.2013; two specimens. 6244 Regionale stasjoner REG–07; 60.9730°N–2.6305°E; 187 m; 30.05.2013; eight specimens. 6244 Regionale stasjoner REG–13; 60.8214°N–2.8519°E; 175 m; 29.05.2013; two specimens. 6244 Regionale stasjoner REG–15; 60.6888°N–2.6984°E; 117 m; 28.05.2013; 13 specimens. 6244 Regionale stasjoner REG–19; 60.4347°N– 2.8183°E; 102 m; 27.05.2013; one specimen.
Diagnosis. Antenna long, multiarticulate. Secondary ciliary organs present. Three prebranchial segments. Branchiae numbering 7–18 pairs; with wide base and rounded tip. Modified notochaetae absent. Modified neurochaetae hooked with subterminal spine on concave side of stem.
Distribution. Western Atlantic, from Newfoundland (Kenchington et al. 2001) to Venezuela (Díaz-Díaz & Liñero 2011), and Eastern Atlantic, from the North Sea near Norway (Hartley 1981) to Portugal (Gil & Sardà 1999). Mediterranean (Katzmann & Laubier 1975). Pacific Ocean: Japan (Imajima 1973), California (Blake 1996), Panama (Aguado & López 2003).