Table 1 in To name but a few: descriptions of five new species of Terebellides (Annelida, Trichobranchidae) from the North East Atlantic

Table 1. Comparison of discriminatin g taxonomic characters of the species studied in this work. Cells with text in italic show discriminatory characters of each subgroup. Species 18, 19, and 23 were not studied and 12 and 21 only examined with SEM.
SubgroupsA1A2A3A4Species sensu Nygren et al. (2018)101112131819678920 + 282123SPECIEST. bakkeni sp. nov.T. stroemii Sars, 1835Terebellides sp. 1T. kongsrudi sp. nov.T. europaea Lavesque et al., 2019T. ronningae sp. nov.T. norvegica sp. nov.T. scotica sp. nov.T. bigeniculatus Parapar et al., 2011Terebellides sp. 2(as reported/described here)Branchiaetype (1)1111--11111 (2)1 (2)-papillae on lamellae edgenononono--yesyesyesyesnono-Thoraxciliated papilla dorsal to notopodiumyesyesyesyes--nono (?)nonoyesyes-chaetiger(s) with geniculate chaetaeTC6TC6TC6TC6--TC6TC6TC6TC6TC5 + TC6TC5 + TC6-uncini type (3)3333--313333-Abdomenuncini type (4)1A221A--22221B1B-Bathymetry - Above (A) / Below (B) 200 m depth (5)A / BA / BAA / BBBAABABA / BBDistribution - North (N) /South (S) of 60°N (5)NNSN / SNNS (6)N / SN / SS (7)NNN
(1) sensu Parapar et al. (2016c); (2) sometimes irregular; (3) sensu Parapar et al. (2020); (4) this work; (5) dominant trend in bold; (6) Skagerrak and Kattegat; (7) Irish Sea