{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T05:24:27Z","timestamp":1775366667930,"version":"3.50.1"},"reference-count":30,"publisher":"Cambridge University Press (CUP)","issue":"5","license":[{"start":{"date-parts":[[2017,8,10]],"date-time":"2017-08-10T00:00:00Z","timestamp":1502323200000},"content-version":"unspecified","delay-in-days":9,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Mar. Biol. Ass."],"published-print":{"date-parts":[[2017,8]]},"abstract":"<jats:p>Four species of<jats:italic>Laonice<\/jats:italic>(Annelida: Spionidae) were collected from the lower bathyal depths (3300\u20133700 m) in the Whittard Canyon, NE Atlantic. Two are herewith described as new species:<jats:italic>Laonice whittardensis<\/jats:italic>sp. nov. and<jats:italic>Laonice natae<\/jats:italic>sp. nov. The other two are<jats:italic>Laonice blakei<\/jats:italic>Sikorski &amp; Jirkov, 1988 and<jats:italic>Laonice magnacristata<\/jats:italic>Maciolek, 2000.<jats:italic>Laonice whittardensis<\/jats:italic>has genital pouches appearing from chaetiger 3, prostomium free of peristomium and bidentate hooks.<jats:italic>Laonice natae<\/jats:italic>belongs to the subgenus<jats:italic>Appelloefia<\/jats:italic>nov. with prostomium distinct from the peristomium, more than two vertical rows of capillaries in several anterior chaetigers, genital pouches present on a limited number of segments or totally absent. However, the absence of pronounced anterior widening of the body together with anterior branchiae, which are remarkably (nearly twice) longer than the notopodial postchaetal lobes, the narrow lanceolate notopodial postchaetal lobes, the pronounced pointedness of all postchaetal lobes (both notopodial and neuropodial) in the anterior half of body at least, and absence of genital pouches and the size of the body all distinguish<jats:italic>L. natae<\/jats:italic>from other species belonging to this subgenus. An identification key to all nine known deep-water (&gt;400 m depth)<jats:italic>Laonice<\/jats:italic>species in North Atlantic is given and four previously recognized sub-generic groups are formally named:<jats:italic>Laonice, Sarsiana<\/jats:italic>subgen. nov.,<jats:italic>Appelloefia<\/jats:italic>subgen. nov.,<jats:italic>Norgensia<\/jats:italic>subgen. nov.<\/jats:p>","DOI":"10.1017\/s0025315417000480","type":"journal-article","created":{"date-parts":[[2017,8,10]],"date-time":"2017-08-10T10:55:16Z","timestamp":1502362516000},"page":"961-973","source":"Crossref","is-referenced-by-count":6,"title":["<i>Laonice<\/i>species (Polychaeta, Spionidae) from the Whittard Canyon (NE Atlantic) with descriptions of two new species"],"prefix":"10.1017","volume":"97","author":[{"given":"Andrey","family":"Sikorski","sequence":"first","affiliation":[]},{"given":"Laetitia M.","family":"Gunton","sequence":"additional","affiliation":[]},{"given":"Lyudmila","family":"Pavlova","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2017,8,10]]},"reference":[{"key":"S0025315417000480_ref25","doi-asserted-by":"publisher","DOI":"10.1080\/11250003.2011.617218"},{"key":"S0025315417000480_ref27","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.4097.3.4"},{"key":"S0025315417000480_ref19","first-page":"1","article-title":"Annelida polychaeta of tambalagam lake, ceylon","volume":"4","author":"Pillai","year":"1961","journal-title":"Ceylon Journal of Science (Biological Sciences)"},{"key":"S0025315417000480_ref10","doi-asserted-by":"publisher","DOI":"10.1029\/AR026p0125"},{"key":"S0025315417000480_ref5","doi-asserted-by":"publisher","DOI":"10.1002\/9780470995129.ch7"},{"key":"S0025315417000480_ref6","doi-asserted-by":"crossref","first-page":"1","DOI":"10.11646\/zootaxa.2903.1.1","article-title":"New Laonice species (Polychaeta: Spionidae) from western and northern Australia","volume":"2903","author":"Greaves","year":"2011","journal-title":"Zootaxa"},{"key":"S0025315417000480_ref4","first-page":"119","volume-title":"Composition and distribution of bottom invertebrate animals in the seas of Russia and adjacent waters","author":"Detinova","year":"1997"},{"key":"S0025315417000480_ref8","doi-asserted-by":"publisher","DOI":"10.1016\/j.dsr.2014.11.010"},{"key":"S0025315417000480_ref17","doi-asserted-by":"crossref","first-page":"201","DOI":"10.11646\/zootaxa.3786.3.1","article-title":"Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic","volume":"3786","author":"Mei\u00dfner","year":"2014","journal-title":"Zootaxa"},{"key":"S0025315417000480_ref7","first-page":"249","article-title":"Die Familien der Anneliden","volume":"16","author":"Grube","year":"1850","journal-title":"Archiv f\u00fcr Naturgeschichte, Berlin"},{"key":"S0025315417000480_ref29","first-page":"195","article-title":"Descriptions of new species of Spioniform Annelids","volume":"59","author":"Moore","year":"1907","journal-title":"Proceedings of the Academy of Natural Sciences of Philadelphia"},{"key":"S0025315417000480_ref21","first-page":"121","article-title":"Beretning om en i Sommeren 1849 foretagen zoologisk Reise i Lofoten og Finmarken","volume":"6","author":"Sars","year":"1851","journal-title":"Nyt Magazin f\u00f6r Naturvidenskapene"},{"key":"S0025315417000480_ref9","first-page":"1","article-title":"Non-pelagic Polychaeta of the Swedish Antarctic expedition 1901\u20131903","volume":"4","author":"Hartman","year":"1953","journal-title":"Further Zoological Results of the Swedish Antarctic Expedition 1901\u20131903"},{"key":"S0025315417000480_ref11","first-page":"59","volume-title":"Zur Kenntnis des Sublitorals der chilenischen K\u00fcste unter besonderer Ber\u00fccksichtigung der Polychaeten und Ostracoden. 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