taxonID	type	description	language	source
039B9215173DFFB8FDC4072AFEB6FCE8.taxon	description	urn: lsid: zoobank. org: act: 33 FB 3584 - DCFC- 4 B 0 E- 9 D 1 D-ED 8 AF 67 F 15 E 9 Tables 2 – 3	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B9215173DFFB8FDC4072AFEB6FCE8.taxon	type_taxon	Type species Webbnesia maculata gen. et sp. nov. designated herein.	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B9215173DFFB8FDC4072AFEB6FCE8.taxon	diagnosis	Diagnosis BODY. Flattened dorsoventrally, short, with fewer than 40 segments, more or less covered by elytra dorsally. ELYTRA. 15 pairs on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 29 and 32. PROSTOMIUM. Bilobed, without cephalic peaks, with three antennae. Median antenna inserted in anterior notch, lateral antennae inserted ventrally. Two pairs of eyes. PARAPODIA. Biramous, notopodium reduced and neuropodium elongate. Notopodium with aciculum penetrating distally. Neuropodium with elongate prechaetal lobe and shorter postchaetal lobe; prechaetal acicular lobe with minute (i. e., reduced) supra-acicular process, aciculum penetrating subdistally. CHAETAE. Notochaetae and neurochaetae stout, with rows of spines and entire tip.	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B9215173DFFB8FDC4072AFEB6FCE8.taxon	etymology	Etymology The genus name is a combination of the name Webb and the Greek word ‘ nes ’ (= ‘ island’); gender feminine. ‘ Webbnesia’ refers to a new ecoregion defined by Freitas et al. (2019) and co-authored by one of us (JN) which includes the Canary, Savage and Madeira Islands.	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B9215173DFFB8FDC4072AFEB6FCE8.taxon	discussion	Remarks Among the genera currently attributed to Polynoinae sensu lato, only Hermadion Kinberg, 1856, Antinoe Kinberg, 1856 and Malmgrenia McIntosh, 1874 (see Pettibone 1993; Bock et al. 2010 and Barnich et al. 2017) share the following diagnostic characters with Webbnesia gen. nov.: 15 pairs of elytra, fewer than 50 segments (i. e., short-bodied), cephalic peaks absent, noto-and neurochaetae all of same type, stout, without semi-lunar pockets. Webbnesia and Hermadion have ventrally inserted lateral antennae, but the shape of their parapodia is different. The notopodium of Hermadion is prominent, nearly as long as the neuropodium, while the new genus is characterised by a minute, reduced notopodium (see Tables 2 – 3). In Malmgrenia and Antinoe the parapodia are similar to those of Webbnesia, but the main difference is the insertion of the lateral antennae, which is ventral in Webbnesia and terminoventral in the two other genera. Among the polynoid genera sharing the diagnostic characters listed above, the combination of ventrally inserted antennae and a reduced notopodium is unique and justifies the erection of a new genus (see Table 2).	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B92151733FFBEFDF20284FB8EFC09.taxon	description	urn: lsid: zoobank. org: act: 3128 B 356 - 28 DC- 4072 - BC 95 - 7 DC 8454 AC 1 D 3 Figs 2 – 6, Tables 2 – 3	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B92151733FFBEFDF20284FB8EFC09.taxon	diagnosis	Diagnosis PROSTOMIUM. Without cephalic peaks. Lateral antennae inserted ventrally. Two pairs of eyes, anterior pair dorsolateral, posterior pair dorsal. ELYTRA. With smooth margins, surface with scattered, conical microtubercles and pigmented patches. ANTENNAE AND CIRRI. Tapering, papillate. PARAPODIA. With reduced notopodium and prominent neuropodium; neuropodium with minute (i. e., reduced) supra-acicular process, aciculum penetrating subdistally. CHAETAE. Notochaetae stout with faint rows of spines and entire tip. Neurochaetae stout with distinct rows of spines and falcate, entire tip.	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B92151733FFBEFDF20284FB8EFC09.taxon	etymology	Etymology The species epithet refers to the characteristic pigmented patches on the elytra, described by the Latin word ‘ maculatus ’ in its female form.	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B92151733FFBEFDF20284FB8EFC09.taxon	materials_examined	Material examined Holotype CANARY ISLANDS • ovigerous ♀ (complete, with 33 segments); NE Atlantic, east coast of Gran Canaria, off Tufía; 27 ° 57.91 ′ N, 15 ° 22.63 ′ W; 27 m depth; Feb. 2019; fine sands; TFMCBM-AN / 246. Paratypes CANARY ISLANDS • 1 spec. (anterior fragment of 11 segments); NE Atlantic, south coast of Gran Canaria, off Castillo del Romeral; 27 ° 47.79 ′ N, 15 ° 24.40 ′ W; 39 m depth; Oct. 2020; coarse sands; TFMCBM-AN / 247 • 1 spec. (posterior fragment of 12 segments); NE Atlantic, south coast of Gran Canaria, off Castillo del Romeral; 27 ° 47.73 ′ N, 15 ° 23.49 ′ W; 60 m depth; Oct. 2020; coarse sands; TFMCBM-AN / 248 • 1 spec. (anterior fragment of 16 segments); NE Atlantic, south coast of Tenerife, off Granadilla; 28 ° 3.56 ′ N, 16 ° 30.20 ′ W; 22 m depth; 18 Sep. 2013; coarse sands; SMF 32262.	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B92151733FFBEFDF20284FB8EFC09.taxon	description	Description of holotype MEASUREMENTS. Holotype, complete specimen of 8 mm length and 2 mm width in anterior body region. BODY. Flattened dorsoventrally, short, with 33 segments, dorsum covered by elytra (Fig. 3 A); ovigerous female (Fig. 4 C – D). PROSTOMIUM. Cephalic peaks absent, lobes anteriorly rounded. Median antenna with ceratophore in anterior notch, style tapering, papillate; lateral antennae with ceratophores inserted ventrally, styles tapering, papillate. Anterior pair of eyes dorsolateral in front of widest part of prostomium, posterior pair dorsal near posterior margin (Figs 2 A, 3 B). TENTACULOPHORES. Inserted laterally to prostomium, with a pair of dorsal and ventral tentacular cirri; styles tapering, papillate (Figs 2 A, 3 B). ELYTRA. Fifteen pairs on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 29 and 32. Elytral margins smooth; surface with scattered, conical microtubercles and five pigmented patches (Figs 2 B, 3 A – B, 4 A – B). CIRRI. Dorsal cirri from segment 3 on segments without elytra; cirrophore inserted dorsally on notopodium; style tapering, papillate (Figs 2 A, C, 3 A – D, 4 D). Ventral cirri from segment 2 on all segments; first pair distinctly larger than following; style tapering, papillate (Figs 2 C, 3 D). Pair of pygidial cirri similar to dorsal cirri. DORSAL TUBERCLES. Conical, one pair present on all cirrigerous segments, situated on dorsum in line with elytrophores of adjacent segments (Fig. 2 A, C). PARAPODIA. Notopodium reduced, with notoaciculum penetrating distally (may be withdrawn). Neuropodium more prominent, with elongate, conical prechaetal lobe and shorter, rounded postchaetal lobe; prechaetal lobe acicular with minute (i. e., reduced) supra-acicular process and neuroaciculum penetrating subdistally (Figs 2 C – D, 4 D, 5). CHAETAE. Notochaetae few (2 – 3), stout, with faint rows of spines and blunt, entire tip (Figs 2 C – E, 6 A). Neurochaetae more numerous (up to 18), stout, with falcate, entire (i. e., unidentate) tip; upper neurochaetae distally rather straight and spinose region elongate with pronounced rows of spines; middle and lower neurochaetae distally more curved and spinose region shorter with less marked rows of spines (Figs 2 C – D, F, 4 D, 6 B – D). Pigmentation (animals preserved) (Figs 2 A – B, 3 A – D, 4 A) Body dorsally mostly white with brown patches; ventrally with 13 intersegmental, incomplete transverse bands in posterior body region. Prostomial lobes with diffuse pigmentation; basal part of median antenna and all of lateral antennae darkly pigmented. Tentacular cirri unpigmented. Dorsal and ventral cirri pigmented basally throughout body, also pygidial cirri similarly pigmented. Elytra usually with five pigmented patches: one circular above place of attachement to elytrophore, the others irregularlyshaped, two on the inner lateral part and two on the posterior part.	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
039B92151733FFBEFDF20284FB8EFC09.taxon	distribution	Distribution and habitat NE Atlantic, Canary Islands: E and S of Gran Canaria and S of Tenerife; in 22 to 60 m depth. The substrate at the Tufía station is characterised by areas of fine sand and poorly consolidated maerl. The faunal composition is dominated by the polychaetes Paradoneis armata Glémarec, 1966 and Aponuphis ornata (Fauvel, 1928) and the crustaceans Apseudopsis rogi Esquete, 2016 and Urothoe marina (Spence Bate, 1857). At the Castillo del Romeral stations the substrate is characterised by gravel and coarse organogenic sand. The dominant polychaetes are Pisione guanche San Martín, López & Núñez, 1999 and Syllis gerundensis (Alós & Campoy, 1981); the most abundant species are the bivalve Gouldia minima (Montagu, 1803) and the amphipod Photis longicaudata (Spence Bate & Westwood, 1862). At the Granadilla station the substrate is characterised by maerl and coarse sand. The faunal composition is dominated by the amphipod Animoceradocus semiserratus (Spence Bate, 1862) and the polychaetes Chone filicaudata Southern, 1914 and Aponuphis bilineata (Baird, 1870).	en	Núñez, Jorge, Barnich, Ruth, Monterroso, Óscar (2022): A new genus and species of Polynoidae (Annelida: Polychaeta) from the Canary Islands, and update on taxa present in the Northeast Atlantic. European Journal of Taxonomy 846 (1): 55-74, DOI: https://doi.org/10.5852/ejt.2022.846.1965, URL: http://dx.doi.org/10.5852/ejt.2022.846.1965
