The “ Spaghetti Project ”: the final identification guide to European Terebellidae (sensu lato) (Annelida, Terebelliformia) Author Lavesque, Nicolas 3E6771E7-1A94-4FD2-8E7B-36AD6ED8B446 Univ. Bordeaux, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France. nicolas.lavesque@u-bordeaux.fr Author Hutchings, Pat E83A37D3-33D8-4999-ACA6-8DFECAF05D11 Australian Museum Research Institute, Australian Museum, Sydney, Australia; Department of Biological Sciences, Macquarie University, Australia. pat.hutchings@Australian.Museum Author Londoño-Mesa, Mario H. 198696D8-8FB2-4F03-AFEB-0E0773CB6669 Grupo LimnoBasE y Biotamar, Instituto de Biología Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellín, Colombia. hernan.londono@udea.edu.co Author Nogueira, João M. M. C40C8C12-619D-4EC2-8998-253708120D3F Laboratório de Poliquetologia, Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Brazil. nogueira@ib.usp.br Author Daffe, Guillemine BC283B5F-3757-4941-BEED-4004C6850912 Université de Bordeaux, Observatoire Aquitain des Sciences de l’Univers, UMS 2567 POREA, Pessac, France. guillemine.daffe@u-bordeaux.fr Author Nygren, Arne 46801B86-2D81-4702-A1D1-65E1C6C40FC1 Sjöfartmuseet Akvariet, Göteborg, Sweden; Institutionen för marina vetenskaper, Göteborgs Universitet, Göteborg, Sweden. maskmedmera@gmail.com Author Blanchet, Hugues 47011CCC-0911-4EB5-9EBA-9BAF5394D042 Univ. Bordeaux, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France. hugues.blanchet@u-bordeaux.fr Author Bonifácio, Paulo 19882300-C635-4CF2-A7CE-98EE01C87120 Independent researcher, Brest, France. bonif@me.com Author Broudin, Caroline 0CE07B72-5E59-4A7F-8F04-D77A1167CBAB Sorbonne Université, CNRS, Station Biologique de Roscoff, 29680 Roscoff, France. broudin@sb-roscoff.fr Author Dauvin, Jean-Claude 12B3072A-421D-47A0-82BE-10125016C8D9 Normandie Univ, UNICAEN, UNIROUEN, Laboratoire Morphodynamique Continentale et Côtière, CNRS UMR 6143 M 2 C, Caen, France. jean-claude.dauvin@unicaen.fr Author Droual, Gabin C3137160-D1C5-4996-91D7-A3F4E38E25DD Ifremer, DYNECO-LEBCO, Plouzané, France; Ifremer, EMH, Nantes, France. Gabin.Droual@ifremer.fr Author Gouillieux, Benoit D0BE2D38-05DC-4DE0-BEE2-D458ED5C3299 Univ. Bordeaux, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France. benoit.gouillieux@u-bordeaux.fr Author Grall, Jacques 74F9A220-94E5-4C80-B375-0FD4C894F804 Univ Brest, CNRS, IRD, OSU-IUEM, Plouzané, France. jacques.grall@univ-brest.fr Author Guyonnet, Benjamin 82664894-3735-4CA4-8443-D904052FE3CF Environnement, Auray, France. b.guyonnet@tbm-environnement.com Author Houbin, Céline 41D368C7-3084-4E8A-B6EF-24E184D4752E Sorbonne Université, CNRS, Station Biologique de Roscoff, 29680 Roscoff, France. houbin@sb-roscoff.fr Author Humbert, Suzie 4354F19C-8567-4713-8E3B-492B4025EF26 Univ. Bordeaux, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France. suzie.humbert@u-bordeaux.fr Author Janson, Anne-Laure 587C0411-5819-4FEB-AD5F-A0107D72A725 CNRS, MNHN, UMS 2006 Patrimoine Naturel, Station Marine de Dinard, Dinard, France. anne-laure.janson@mnhn.fr Author Jourde, Jérôme 746DEE71-E146-4355-B164-D55D9A971044 CNRS, La Rochelle Université, Littoral Environnement et Sociétés, UMR 7266 LIENSs, La Rochelle, France. jjourde@univ-lr.fr Author Labrune, Céline 9200C8BA-E199-46B8-8727-BCF01DBC383A CNRS, Sorbonne Université, Laboratoire d’Ecogéochimie des Environnements Benthiques, LECOB, Banyuls, France. celine.labrune@obs-banyuls.fr Author Lamarque, Bastien BE414235-3305-483C-8ED2-53AF7F68482A Univ. Bordeaux, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France. bastien.lamarque@u-bordeaux.fr Author Latry, Lise 9F307F07-9830-4AE7-A77C-397BA3B8BE19 Univ. Bordeaux, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France. lise.latry@u-bordeaux.fr Author Garrec, Vincent Le 00E7C229-D215-4035-96C5-43B072EFC28A Univ Brest, CNRS, IRD, OSU-IUEM, Plouzané, France. Vincent.Legarrec@univ-brest.fr Author Pelaprat, Corine AD117DA7-DFA1-4190-BA8B-4958AF593822 Benthos Identification, 33840 Escaudes, France; Stareso, Calvi, France. benthid@gmail.com Author Pezy, Jean-Philippe 9307F067-DF5F-4BF1-B7EF-9B876640B891 Normandie Univ, UNICAEN, UNIROUEN, Laboratoire Morphodynamique Continentale et Côtière, CNRS UMR 6143 M 2 C, Caen, France. jean-philippe.pezy@unicaen.fr Author Sauriau, Pierre-Guy C5012CB5-D12A-468F-9536-E0C08F9A91E6 CNRS, La Rochelle Université, Littoral Environnement et Sociétés, UMR 7266 LIENSs, La Rochelle, France. pierre-guy.sauriau@univ-lr.fr Author Montaudouin, Xavier De D90D06BE-E569-4B4B-98F4-AFB1E183C2A5 Univ. Bordeaux, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France. xavier.de-montaudouin@u-bordeaux.fr text European Journal of Taxonomy 2021 2021-12-14 782 1 108 156 http://dx.doi.org/10.5852/ejt.2021.782.1593 journal article 2940 10.5852/ejt.2021.782.1593 313d099b-3bb0-4272-b956-c466e3591188 2118-9773 5781605 510DE23F-4CE5-4DDF-B1E7-CA8346AA4F5F Family Telothelepodidae Nogueira, Fitzhugh & Hutchings, 2013 Figs 3–4 Diagnosis (after Nogueira et al . 2018 ; Hutchings et al. 2021a , most important diagnostic characters highlighted in bold) Transverse prostomium attached to dorsal surface of upper lip; basal part as thick crest, eyespots frequently present in one pair of dorso-lateral clusters, each with several rows of eyespots ( Fig. 3A ); distal part at base of upper lip, frequently with low or erect mid-dorsal tongue-like process , fused to upper lip at variable degrees, with free distal lobe(s), or free from the base. Buccal tentacles of two types , short ones thin, uniformly cylindrical, long tentacles stouter and expanded at tips, slightly spatulate ( Figs 3A–B, F , 4A ). Peristomium forming lips and continuing dorsally at least for short extension, with dorso-lateral nuchal organs at margin with prostomium; lips expanded, upper lip distinctly elongate and narrow, undulated to convoluted ; swollen lower lip extending across ventrum, cushion-like or segment-like, frequently deeply grooved ( Figs 3A–B , 4A ). Either SG I or SG II reduced, not forming complete ring in many species. Anterior segments glandular ventrally, smooth, discrete shields absent and frequently with glandular regions poorly developed in comparison to other families of Terebellidae s.l.; mid-ventral groove frequently extending from anterior segments. Two pairs of cirriform branchiae on SG II–III, each pair with simple thin, curled and relatively short filaments progressively tapering to tips ( Figs 3A , 4A ), originating from raised crests on anterior margins of SG II and III, or from specialised, apparently glandular, dorso-lateral cushion-like pads occupying from anterior margins to level of posterior bases of notopodia of those segments. Notopodia beginning from SG II or III, usually SG III, extending for at least 15 segments; notopodia as short cones, notochaetae originating from central core on top, distal lobes absent; notochaetae winged, sometimes with bulbous head and alimbate tips (bayonet-like chaetae), at least in anterior row of anterior thoracic segments. Neuropodia beginning posteriorly to notopodia, usually around SG VIII–XII ; neuropodia in conjunction with notopodia as sessile tori, as distinctly low pinnules after notopodia terminate; neurochaetae in single row, as avicular uncini about as long as high, with short triangular heel directed posteriorly, wide and slightly curved base, and dorsal button near midlength of uncini, but closer to anterior margin ( Fig. 4E ). Nephridial and genital papillae, if conspicuous, on SG V–VII, posterior to bases of notopodia. Remarks This recent family was described by Nogueira et al. (2013) after conducting a comprehensive phylogenetic analysis. The members of this family were previously considered as Thelepodidae but differ in having a narrow and elongate upper lip, poorly developed neuropodia and anterior segments less glandular ventrally than in other thelepodids. In European waters, this family is represented by a single species, Parathelepus collaris ( Figs 3A–B , 4A, E ; Table 1 ), characterised by an expanded, tongue-like upper lip, by neuropodia poorly developed and beginning from SG XI.