taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
417CF579FFC3FF8FFC7CFB37FEF0F8E6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035480/files/figure.png	http://doi.org/10.5281/zenodo.7035480	Figure 4. Pollentia perezi gen. & sp. nov. live specimen. A, dorsal view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. B, ventral view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. C, dorsal view, paratype MNCN 16.01/18956. D, detail of anterior end; notice two elytra still attached on first two left elytrophores, paratype MNCN 16.01/18956. Images courtesy of WhiteLife Photography. Abbreviations: br, brain; cma, ceratophore median antenna; dc, dorsal cirrus; ely, elytra; ja, jaws; la, lateral antenna; li, lip; ma, median antenna; np, nephridial papillae; pa, palp; tc1, inferior tentacular cirrus; tcs, superior tentacular cirrus; stars, nephridial ducts.	Figure 4. Pollentia perezi gen. & sp. nov. live specimen. A, dorsal view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. B, ventral view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. C, dorsal view, paratype MNCN 16.01/18956. D, detail of anterior end; notice two elytra still attached on first two left elytrophores, paratype MNCN 16.01/18956. Images courtesy of WhiteLife Photography. Abbreviations: br, brain; cma, ceratophore median antenna; dc, dorsal cirrus; ely, elytra; ja, jaws; la, lateral antenna; li, lip; ma, median antenna; np, nephridial papillae; pa, palp; tc1, inferior tentacular cirrus; tcs, superior tentacular cirrus; stars, nephridial ducts.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC3FF8FFC7CFB37FEF0F8E6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035482/files/figure.png	http://doi.org/10.5281/zenodo.7035482	Figure 5. Pollentia perezi gen. & sp. nov. (holotype MNCN 16.01/18955) specimen, with all elytra accidentally lost except for a posterior one. A, anterior segments, dorsal view, live specimen. B, detail of prostomium and head appendages, preserved specimen. C, anterior segments of live specimen, with proboscis partly everted. D, anterior segments, ventral view, preserved specimen. E, detail of anterior margin, showing mouth. F, anterior parapodia, ventral view, showing nephridial papillae. G, posterior segments, dorsal view. Abbreviations: cma, ceratophore median antenna; la, lateral antenna; li, lip; ma, median antenna; mo, mouth; np, nephridial papilla; pa, palp; ph, pharyx; tc, tentacular cirrus.	Figure 5. Pollentia perezi gen. & sp. nov. (holotype MNCN 16.01/18955) specimen, with all elytra accidentally lost except for a posterior one. A, anterior segments, dorsal view, live specimen. B, detail of prostomium and head appendages, preserved specimen. C, anterior segments of live specimen, with proboscis partly everted. D, anterior segments, ventral view, preserved specimen. E, detail of anterior margin, showing mouth. F, anterior parapodia, ventral view, showing nephridial papillae. G, posterior segments, dorsal view. Abbreviations: cma, ceratophore median antenna; la, lateral antenna; li, lip; ma, median antenna; mo, mouth; np, nephridial papilla; pa, palp; ph, pharyx; tc, tentacular cirrus.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC3FF8FFC7CFB37FEF0F8E6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035484/files/figure.png	http://doi.org/10.5281/zenodo.7035484	Figure 6. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956). A, head with dissected appendages except for lateral antennae. B, head and anterior parapodia, side view (tentacular cirri with removed styles). C, lateral antenna. D, detail of lateral antenna, with internal papillae. E, detail of wrinkled palp, with longitudinal rows of papillae. F, papilla on palp. G, upper lip, without facial tubercle. H, second segment, with wide neuropodial acicular lobe. I, ventral cirrus of second segment. J, detail of papilla of first ventral cirrus. K, transverse rows of cilia on midbody dorsal sides. L, detail of dorsal rows of cilia. M, pharyngeal papillae. N, detail of jaw. Abbreviations: la, lateral antenna; ma, median antenna; mo, mouth; nea, neuroacicular lobe; noa, notoacicular lobe; pa, palp; ph, pharyx; tc, tentacular cirrus; ti, inferior tentacular cirrus; ts, superior tentacular cirrus; vc, ventral cirrus; 1–4, segment number; stars, rows of cilia.	Figure 6. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956). A, head with dissected appendages except for lateral antennae. B, head and anterior parapodia, side view (tentacular cirri with removed styles). C, lateral antenna. D, detail of lateral antenna, with internal papillae. E, detail of wrinkled palp, with longitudinal rows of papillae. F, papilla on palp. G, upper lip, without facial tubercle. H, second segment, with wide neuropodial acicular lobe. I, ventral cirrus of second segment. J, detail of papilla of first ventral cirrus. K, transverse rows of cilia on midbody dorsal sides. L, detail of dorsal rows of cilia. M, pharyngeal papillae. N, detail of jaw. Abbreviations: la, lateral antenna; ma, median antenna; mo, mouth; nea, neuroacicular lobe; noa, notoacicular lobe; pa, palp; ph, pharyx; tc, tentacular cirrus; ti, inferior tentacular cirrus; ts, superior tentacular cirrus; vc, ventral cirrus; 1–4, segment number; stars, rows of cilia.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035478/files/figure.png	http://doi.org/10.5281/zenodo.7035478	Figure 3. Phylogenetic hypothesis of Polynoidae inferred from a maximum likelihood analysis based on the reduced dataset of four concatenated genetic markers (18S rRNA, 28S rRNA, 16S rRNA and COI). Alignment was performed with MUSCLE for COI, using default parameters, and with MAFFT for 18S rRNA, 28S rRNA and 16S rRNA, using the xinsi option. Ambiguously aligned positions were removed with GBLOCKS. Support values in branches correspond, per order and separated by‘/’, to the bootstrap support (BS) values of the maximum likelihood IQ-TREE, the number of genes (concordance) and the numbers of positions (concordance). *Posterior probabilities> 0.9 recovered after Bayesian inference in MRBAYES.	Figure 3. Phylogenetic hypothesis of Polynoidae inferred from a maximum likelihood analysis based on the reduced dataset of four concatenated genetic markers (18S rRNA, 28S rRNA, 16S rRNA and COI). Alignment was performed with MUSCLE for COI, using default parameters, and with MAFFT for 18S rRNA, 28S rRNA and 16S rRNA, using the xinsi option. Ambiguously aligned positions were removed with GBLOCKS. Support values in branches correspond, per order and separated by‘/’, to the bootstrap support (BS) values of the maximum likelihood IQ-TREE, the number of genes (concordance) and the numbers of positions (concordance). *Posterior probabilities> 0.9 recovered after Bayesian inference in MRBAYES.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035480/files/figure.png	http://doi.org/10.5281/zenodo.7035480	Figure 4. Pollentia perezi gen. & sp. nov. live specimen. A, dorsal view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. B, ventral view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. C, dorsal view, paratype MNCN 16.01/18956. D, detail of anterior end; notice two elytra still attached on first two left elytrophores, paratype MNCN 16.01/18956. Images courtesy of WhiteLife Photography. Abbreviations: br, brain; cma, ceratophore median antenna; dc, dorsal cirrus; ely, elytra; ja, jaws; la, lateral antenna; li, lip; ma, median antenna; np, nephridial papillae; pa, palp; tc1, inferior tentacular cirrus; tcs, superior tentacular cirrus; stars, nephridial ducts.	Figure 4. Pollentia perezi gen. & sp. nov. live specimen. A, dorsal view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. B, ventral view, showing spotted pigmentation pattern, holotype MNCN 16.01/18955. C, dorsal view, paratype MNCN 16.01/18956. D, detail of anterior end; notice two elytra still attached on first two left elytrophores, paratype MNCN 16.01/18956. Images courtesy of WhiteLife Photography. Abbreviations: br, brain; cma, ceratophore median antenna; dc, dorsal cirrus; ely, elytra; ja, jaws; la, lateral antenna; li, lip; ma, median antenna; np, nephridial papillae; pa, palp; tc1, inferior tentacular cirrus; tcs, superior tentacular cirrus; stars, nephridial ducts.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035482/files/figure.png	http://doi.org/10.5281/zenodo.7035482	Figure 5. Pollentia perezi gen. & sp. nov. (holotype MNCN 16.01/18955) specimen, with all elytra accidentally lost except for a posterior one. A, anterior segments, dorsal view, live specimen. B, detail of prostomium and head appendages, preserved specimen. C, anterior segments of live specimen, with proboscis partly everted. D, anterior segments, ventral view, preserved specimen. E, detail of anterior margin, showing mouth. F, anterior parapodia, ventral view, showing nephridial papillae. G, posterior segments, dorsal view. Abbreviations: cma, ceratophore median antenna; la, lateral antenna; li, lip; ma, median antenna; mo, mouth; np, nephridial papilla; pa, palp; ph, pharyx; tc, tentacular cirrus.	Figure 5. Pollentia perezi gen. & sp. nov. (holotype MNCN 16.01/18955) specimen, with all elytra accidentally lost except for a posterior one. A, anterior segments, dorsal view, live specimen. B, detail of prostomium and head appendages, preserved specimen. C, anterior segments of live specimen, with proboscis partly everted. D, anterior segments, ventral view, preserved specimen. E, detail of anterior margin, showing mouth. F, anterior parapodia, ventral view, showing nephridial papillae. G, posterior segments, dorsal view. Abbreviations: cma, ceratophore median antenna; la, lateral antenna; li, lip; ma, median antenna; mo, mouth; np, nephridial papilla; pa, palp; ph, pharyx; tc, tentacular cirrus.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035484/files/figure.png	http://doi.org/10.5281/zenodo.7035484	Figure 6. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956). A, head with dissected appendages except for lateral antennae. B, head and anterior parapodia, side view (tentacular cirri with removed styles). C, lateral antenna. D, detail of lateral antenna, with internal papillae. E, detail of wrinkled palp, with longitudinal rows of papillae. F, papilla on palp. G, upper lip, without facial tubercle. H, second segment, with wide neuropodial acicular lobe. I, ventral cirrus of second segment. J, detail of papilla of first ventral cirrus. K, transverse rows of cilia on midbody dorsal sides. L, detail of dorsal rows of cilia. M, pharyngeal papillae. N, detail of jaw. Abbreviations: la, lateral antenna; ma, median antenna; mo, mouth; nea, neuroacicular lobe; noa, notoacicular lobe; pa, palp; ph, pharyx; tc, tentacular cirrus; ti, inferior tentacular cirrus; ts, superior tentacular cirrus; vc, ventral cirrus; 1–4, segment number; stars, rows of cilia.	Figure 6. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956). A, head with dissected appendages except for lateral antennae. B, head and anterior parapodia, side view (tentacular cirri with removed styles). C, lateral antenna. D, detail of lateral antenna, with internal papillae. E, detail of wrinkled palp, with longitudinal rows of papillae. F, papilla on palp. G, upper lip, without facial tubercle. H, second segment, with wide neuropodial acicular lobe. I, ventral cirrus of second segment. J, detail of papilla of first ventral cirrus. K, transverse rows of cilia on midbody dorsal sides. L, detail of dorsal rows of cilia. M, pharyngeal papillae. N, detail of jaw. Abbreviations: la, lateral antenna; ma, median antenna; mo, mouth; nea, neuroacicular lobe; noa, notoacicular lobe; pa, palp; ph, pharyx; tc, tentacular cirrus; ti, inferior tentacular cirrus; ts, superior tentacular cirrus; vc, ventral cirrus; 1–4, segment number; stars, rows of cilia.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035488/files/figure.png	http://doi.org/10.5281/zenodo.7035488	Figure 7. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956), elytra. A, outer edge, with microtubercles. B, same, scanning electron micrograph. C, D, detail of microtubercles, scanning electron micrograph. E, light micrograph of tubercles on outer surface. F, smooth inner edge, scanning electron micrograph.	Figure 7. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956), elytra. A, outer edge, with microtubercles. B, same, scanning electron micrograph. C, D, detail of microtubercles, scanning electron micrograph. E, light micrograph of tubercles on outer surface. F, smooth inner edge, scanning electron micrograph.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035490/files/figure.png	http://doi.org/10.5281/zenodo.7035490	Figure 8. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956), parapodia. A, anterior parapodia, showing arrangement of elytrophores and cirrophores. B, dorsal view of parapodia of segments 13–15. C, detail of cirrophores, segment 14. D, micrograph of midbody parapodium, anterior view, showing neuroacicula by transparency. E, midbody parapodium, anterior view, scanning electron micrograph, showing chaetal bundles and tapering neuroacicular lobe. F, scanning electron micrograph of midbody parapodium with dorsal cirrus, posterior view. G, midbody parapodium ventral view, with elytrophore and a low, inconspicuous dorsal tubercle. H, detail of papilla on dorsal cirrus. I, anterior parapodia, ventral view. J, detail of papillae ventral cirrus segment 3. K, ventral cirri, smooth from segment 4. L, midbody ventral cirrus. M, ventral papilla. Abbreviations: al, acicular lobe; ci, cirrophore; dc, dorsal cirrus; el, elytrophore; nea, neuroacicular lobe; nei, interior neurochaetae; nes, superior neurochaetae; no, notochaetae; noa, notoacicular lobe; vc, ventral cirrus; 1–15,	Figure 8. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956), parapodia. A, anterior parapodia, showing arrangement of elytrophores and cirrophores. B, dorsal view of parapodia of segments 13–15. C, detail of cirrophores, segment 14. D, micrograph of midbody parapodium, anterior view, showing neuroacicula by transparency. E, midbody parapodium, anterior view, scanning electron micrograph, showing chaetal bundles and tapering neuroacicular lobe. F, scanning electron micrograph of midbody parapodium with dorsal cirrus, posterior view. G, midbody parapodium ventral view, with elytrophore and a low, inconspicuous dorsal tubercle. H, detail of papilla on dorsal cirrus. I, anterior parapodia, ventral view. J, detail of papillae ventral cirrus segment 3. K, ventral cirri, smooth from segment 4. L, midbody ventral cirrus. M, ventral papilla. Abbreviations: al, acicular lobe; ci, cirrophore; dc, dorsal cirrus; el, elytrophore; nea, neuroacicular lobe; nei, interior neurochaetae; nes, superior neurochaetae; no, notochaetae; noa, notoacicular lobe; vc, ventral cirrus; 1–15,	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035494/files/figure.png	http://doi.org/10.5281/zenodo.7035494	Figure 9. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956), chaetae. A, notochaetae tentacular segment (segment1). B, notochaetae bundle. C, detail of tip of notochaetae. D, E, detail of superior neurochaetae, mid length. F, detail of distal end of superior neurochaetae. G, inferior neurochaetae. H, detail of distal end of inferior neurochaeta.	Figure 9. Pollentia perezi gen. & sp. nov. (paratype MNCN 16.01/18956), chaetae. A, notochaetae tentacular segment (segment1). B, notochaetae bundle. C, detail of tip of notochaetae. D, E, detail of superior neurochaetae, mid length. F, detail of distal end of superior neurochaetae. G, inferior neurochaetae. H, detail of distal end of inferior neurochaeta.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
417CF579FFC2FF97FC6DFB00FD15FD29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7035474/files/figure.png	http://doi.org/10.5281/zenodo.7035474	Figure 1. A, map of the Balearic Islands showing the known localities (red numbers) of the new cave polynoid worm Pollentia perezi gen. & sp. nov. (1), the stygobiont cirolanid isopod Metacirolana ponsi (1 and 2) and the stygobiont mysid Burrimysis palmeri (1, 2 and 3); these three taxa occur only in full-strength marine water layers of anchialine caves. B, plan view and section of the cave harbouring the new polynoid (after Suárez, 1993; modified). C, temperature and salinity profiles of the anchialine lake harbouring the new polynoid (notice euhaline conditions below 11 m depth). Temperature, salinity and depth profiles were obtained with an RBR XR-420 conductivity, temperature and depth (CTD) profiler.	Figure 1. A, map of the Balearic Islands showing the known localities (red numbers) of the new cave polynoid worm Pollentia perezi gen. & sp. nov. (1), the stygobiont cirolanid isopod Metacirolana ponsi (1 and 2) and the stygobiont mysid Burrimysis palmeri (1, 2 and 3); these three taxa occur only in full-strength marine water layers of anchialine caves. B, plan view and section of the cave harbouring the new polynoid (after Suárez, 1993; modified). C, temperature and salinity profiles of the anchialine lake harbouring the new polynoid (notice euhaline conditions below 11 m depth). Temperature, salinity and depth profiles were obtained with an RBR XR-420 conductivity, temperature and depth (CTD) profiler.	2022-07-30	Capa, María;Pons, Joan;Jaume, Damià		Zenodo	biologists	Capa, María;Pons, Joan;Jaume, Damià			
