Table 1 in A new species of Chaetopterus (Annelida: Chaetopteridae) from eastern Canada, with a redescription of Chaetopterus norvegicus M. Sars, 1835

Table 1. Comparative morphological data summary of Chaetopterus norvegicus M. Sars, 1835 and C. bruneli sp. nov. Segment numbers follow conventional counting within tagmata A, B and C for Chaetopteridae Audouin & Milne-Edwards, 1833. A-last = the last chaetiger in tagma A; lat. = lateral.
CharacterChaetopterus norvegicus M. Sars, 1835Chaetopterus bruneli sp. nov.EyespresentabsentPeristomium pigmentedabsent in alcoholabsent in alcoholSegments tagma A99–10Segments tagma B55Segments tagma C7–124–6No. A4 cutting chaetae5–103–8Color of cutting chaetaelight browngoldShortest A notopodiaA1 or A4A1 or A9Longest A notopodiaA6A5 or A6A-last bearing neuropodiapresentabsentB1 neuropodia lobe fusionunfusedunfusedShape of C notopodianarrow, tapered distallyclub-shapedC lat. neuropodia cirriabsentabsentNeuropodial lobeChaetopterus norvegicus M. Sars, 1835Chaetopterus bruneli sp. nov.A9 neuropodiumTeeth6–9 (mean 7.5; n = 61)absentLength (µm)44.3–62.1 (mean 54.6; n = 62)absentWidth (µm)20.4–30.4 (mean 26.4; n = 62)absentShape summarypyriform to D-shapedabsentB1 anterior lobeTeeth7–9 (mean 7.8; n = 41)6–8 (mean 7.4; n = 7)Length (µm)31.4–50.1 (mean 43.1; n = 38)38.8–42.5 (mean 40.4; n = 7)Width (µm)18.1–24.5 (mean 21.8; n = 38)16.6–19.9 (mean 18.2; n = 7)Shape summaryellipsoid to D-shapedpyriform to D-shapedB1 posterior lobeTeeth6–8 (mean 7.3; n = 58)5–7 (mean 6.0; n = 8)Length (µm)44.0–60.0 (mean 50.7; n = 55)32.6–41.7 (mean 38.1; n = 8)Width (µm)21.1–30.0 (mean 25.7; n = 55)16.7–20.0 (mean 18.2; n = 8)Shape summarypyriform to D-shapedpyriform to D-shapedB3 lateral lobeTeeth7–9 (mean 7.9; n = 19)5–6 (mean 5.9; n = 7)Length (µm)27.9–34.1 (mean 30.7; n = 16)31.3–36.0 (mean 33.8; n = 7)Width (µm)12.9–15.5 (mean 14.1; n = 16)14.7–17.6 (mean 16.2; n = 7)Shape summaryellipsoid to D-shapedellipsoid to pyriformB3 ventral lobeTeeth6–9 (mean 7.3; n = 41)5 (mean 5; n = 2)Length (µm)28.4–40.0 (mean 35.7; n = 42)32.9–34.8 (mean 33.8; n = 2)Width (µm)15.1–20.7 (mean 17.7; n = 42)14.7–15.6 (mean 15.2; n = 2)Shape summaryD-shaped to pyriformellipsoid to pyriformC1 lateral lobeTeeth6–9 (mean 7.4; n = 58)6–7 (mean 6.7; n = 14)Length (µm)38.8–49.3 (mean 43.9; n = 59)36.0–41.6 (mean 38.7; n = 14)Width (µm)18.7–25.7 (mean 21.6; n = 59)16.7–19.7 (mean 18.0; n = 14)Shape summaryD-shaped to ellipsoidpyriform to ellipsoidC1 ventral lobeTeeth8–12 (mean 10.4; n = 52)8–10 (mean 8.7; n = 14)Length (µm)20.4–40.5 (mean 33.3; n = 53)18.4–28.2 (mean 25.3; n = 14)Width (µm)7.59–14.8 (mean 12.3; n = 53)8.4–11.5 (mean 10.2; n = 14)Shape summaryellipsoid to falcateellipsoid to D-shaped