FIGURE 3 in Jasmineira filatovae Levenstein, 1961, the deepest known sabellid is a Potamethus Chamberlin, 1919: redescription, new combination and generic emendation

FIGURE 3. Scanning electron and light microscopy of thoracic chaetae and uncini of paralectotypes of Potamethus filatovae (Levenstein, 1961) n. comb. A–B) Narrowly hooded chaetae from collar (chaetiger 1), C) chaetiger 2, D) superior group of elongate, narrowly hooded chaetae from chaetiger 2, E) chaetiger 3, F) inferior paleate chaetae from chaetiger 3, G) chaetiger 4, H) inferior group of paleate chaetae from chaetiger 8, I) companion chaeta of chaetiger 2, J) uncini from chaetiger 2, K) dentition of uncini of chaetiger 2, L) torus of chaetiger 3 (uncini and companion chaetae), M) details of companion chaetae of chaetiger 3. Light microscopy: A–B, I–J. SEM: C–H, K–M. Scale bars: A) 200 μm, B, I) 20 μm, C–E, G, J) 100 μm, F) 10 μm, H, K–M) 30 μm.