taxonID	type	description	language	source
4E654A4DB61150E3AC20DE5B25F410DF.taxon	materials_examined	Material examined. MNHN-IA-TYPE 1856, one complete specimen, Mount Edgcumbe, Plymouth Sound, Cornwall, UK (50 ° 20 ' 59 " N, 4 ° 09 ' 52 " W), intertidal in soft rocks, 04 November 2017. MNRJP 002048, one complete specimen, Mount Edgcumbe, Plymouth Sound, Cornwall (UK) (50 ° 20 ' 59 " N, 4 ° 09 ' 52 " W), intertidal in soft rocks, 04 November 2017. AM W. 51410, one complete specimen, Mount Edgcumbe, Plymouth Sound, Cornwall (UK) (50 ° 20 ' 59 " N, 4 ° 09 ' 52 " W), intertidal in soft rocks, 04 November 2017. MNHN-IA-TYPE 1857, one complete specimen, Pyla, Arcachon Bay, France (44 ° 33 ' 57 " N, 1 ° 14 ' 16 " W), subtidal in turf slab (8 m depth), 29 October 2017. AM W. 49085, one complete specimen, Logonna-Daoulas, Bay of Brest, France (48 ° 19 ' 37 " N, 4 ° 19 ' 27 " W), intertidal in soft rocks, 18 October 2016. AM W. 49086, Logonna-Daoulas, Bay of Brest, France (48 ° 19 ' 37 " N, 4 ° 19 ' 27 " W), intertidal in soft rocks, 18 October 2016, several parapodia mounted for SEM. AM W. 27392, one complete specimen, Devon, Plymouth, Mount Edgcumbe (50 ° 21 ' 10 " N, 4 ° 09 ' 30 " W), intertidal from burrows in rock crevices, 25 October 1999.	en	Lavesque, Nicolas, Daffe, Guillemine, Grall, Jacques, Zanol, Joana, Benoit Gouillieux,, Hutchings, Pat (2019): Guess who? On the importance of using appropriate name: case study of Marphysa sanguinea (Montagu, 1813). ZooKeys 859: 1-15, DOI: http://dx.doi.org/10.3897/zookeys.859.34117, URL: http://dx.doi.org/10.3897/zookeys.859.34117
4E654A4DB61150E3AC20DE5B25F410DF.taxon	description	Description. Body relatively long, with complete individuals ranging from 48.1 (ca. 138 chaetigers) to 163.1 mm (ca. 270 chaetigers) in length and from 3.7 to 6.6 mm in width (chaetiger 10 with parapodia), with same width throughout, slightly tapering at anterior end and abruptly tapering at posterior end. Body cylindrical on anterior chaetigers, becoming dorsoventrally flattened. Prostomium slightly shorter than anterior ring of peristomium, as wide as peristomium, bilobed with buccal lips separated by deep ventral and dorsal notch with each lobe rounded (Fig. 1 B, C). Anterior ring of peristomium longer than posterior ring (2 to 3 times) (Fig. 1 B, C). Eyes present, positioned posteriorly between palps and lateral antennae (Fig. 1 C). Prostomial appendages slightly wrinkled, arranged in arc on the posterior margin of the prostomium; median antenna longer than lateral antennae reaching first chaetiger (Fig. 1 A), palps shortest appendages (Fig. 1 A, C). MI more than three times as long as carrier and five times longer than closing system. MIII located ventroanterior to MII. Attachment lamella of MIII long and thin, placed at the middle of the plate. Left MIV with attachment lamella semicircular, thin, situated along anterior edge. Right MIV with attachment lamella semicircular, larger than left one, situated along anterior edge. Maxillary formula: I = 1 + 1, II = 3 ‒ 4 + 5, III = 6 - 7 + 0, IV = 4 + 5 ‒ 6, V = 1 + 1 (Fig. 1 D). First few parapodia smaller than subsequent ones but all similar in structure. Notopodial cirri elongate and triangular (Figs 1 C, 2 A), digitiform in last chaetigers (Fig. 2 C); longer than chaetal lobe. Ventral cirri from chaetiger 1 to 4 - 5 conical to tapering, with round wide tips, shorter than notopodial cirri (Fig. 2 A); basally inflated from chaetiger 5 - 6, inflated base of round shape with round tip (Figs 1 B, 2 B); last chaetigers with triangular cirri (Fig. 2 C). Pre-chaetal lobe inconspicuous; post-chaetal lobe from first chaetigers triangular swollen (Fig. 2 A), longer than chaetal lobe, becoming inconspicuous from ca. chaetigers 15 - 20 (Figs 2 B, C). Branchiae pectinate, from chaetiger 21 (from chaetiger 13 for small specimens) (Figs 1 A, 2 B), extending posteriorly by last 5 - 15 chaetigers; number of branchial filaments increasing from one in first chaetigers to maximum four in mid-body (Fig. 2 B), posterior chaetigers with two filaments; filaments slightly annulated. Chaetae arranged in two bundles: supra-acicular and sub-acicular, separated by a row of aciculae. Aciculae dark, tapering, very protruding, 1 - 4 per parapodium in anterior chaetigers and 2 - 3 in mid and posterior chaetigers. Single subacicular bifid hook present from chaetiger 21 - 25 to nearly end of body, dark on base to middle and translucent at the distal end (Figs 2 D, 3 D). Supra-acicular bundle with limbate and pectinate chaetae; sub-acicular with compound spiniger chaetae. Between 10 to 20 limbate chaetae, chaetae of different lengths with hirsute blades, similar to each other. Pectinate chaetae present from chaetiger 2 - 3 (with up to 28 pectinate chaetae within a single parapodia), restricted to supra-acicular fascicle. Pectinate chaetae of two types. In anterior parapodia, isodonts narrow (n <10) with long internal teeth (with ca. 14 - 15 tapering teeth) and two long outer winged teeth (nearly 2 - 3 times longer than inner teeth) (type 1) (Fig. 3 A). Median and posterior parapodia with two types of pectinate chaetae (Fig. 2 C): thin, isodonts narrow, with ca. 25 short teeth (type 1) (Fig. 3 B, C); anodonts wide pectinate chaetae with long and thick teeth (n = 6 - 14) (type 2) (Fig. 3 C); Type 2 less numerous (3 - 7) than type 1 (16 - 22). Compound spinigers with hirsute shafts and " socket-like " articulations (Fig. 2 A), present along whole body, with more than 30 spinigers within a parapodia. Compound falcigers absent. Pygidium with only one pair of relatively short pygidial cirri on ventral margin (approximately as long as last five chaetigers), anus slightly crenulated.	en	Lavesque, Nicolas, Daffe, Guillemine, Grall, Jacques, Zanol, Joana, Benoit Gouillieux,, Hutchings, Pat (2019): Guess who? On the importance of using appropriate name: case study of Marphysa sanguinea (Montagu, 1813). ZooKeys 859: 1-15, DOI: http://dx.doi.org/10.3897/zookeys.859.34117, URL: http://dx.doi.org/10.3897/zookeys.859.34117
