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The new species differs from all congeners by the following combination of meristic, morphological and pigmentation features: a predominant 1\u20132\u20132\u20132\u20132 pattern of interdigitation of proximal dorsal\u2010fin pterygiophores and neural spines; 12 caudal\u2010fin rays; 89\u201392 dorsal\u2010fin rays; 76\u201380 anal\u2010fin rays; 49\u201351 total vertebrae; four hypurals; 75\u201383 longitudinal scale rows; 32\u201335 transverse scales; 15\u201317 scale rows on the head posterior to the lower orbit; absence of a fleshy ridge on the ocular\u2010side lower jaw and a membranous connection between the anterior nostril and lower part of the eye; a narrow interorbital space and dorsal\u2010fin origin anterior to the vertical through the anterior margin of the upper eye; absence of both dermal spots at bases of anterior dorsal\u2010fin rays and melanophores on the isthmus; uniformly yellow to light\u2010brown ocular\u2010side colouration without bands; dorsal and anal fins with alternating series of dark rectangular blotches and unpigmented areas; a uniform white blind side and a bluish\u2010black peritoneum. Despite overall similarities in morphology between<jats:italic>S. leucochilus<\/jats:italic>and<jats:italic>S. orientalis<\/jats:italic>, as well as between two of the nominal species morphologically similar to<jats:italic>S. microrhynchus<\/jats:italic>, analyses of partial<jats:italic><jats:styled-content style=\"fixed-case\">16s<\/jats:styled-content><\/jats:italic><jats:styled-content style=\"fixed-case\">rRNA<\/jats:styled-content>and<jats:italic><jats:styled-content style=\"fixed-case\">coI<\/jats:styled-content><\/jats:italic>gene sequences show that<jats:italic>S. leucochilus<\/jats:italic>,<jats:italic>S. orientalis<\/jats:italic>and the two other nominal species represent three distinct lineages within the genus<jats:italic>Symphurus<\/jats:italic>.<\/jats:p>","DOI":"10.1111\/jfb.12440","type":"journal-article","created":{"date-parts":[[2014,7,15]],"date-time":"2014-07-15T19:12:37Z","timestamp":1405451557000},"page":"563-585","source":"Crossref","is-referenced-by-count":8,"title":["Description of a new cryptic, shallow\u2010water tonguefish (Pleuronectiformes: Cynoglossidae:<i>Symphurus<\/i>) from the western North Pacific Ocean"],"prefix":"10.1111","volume":"85","author":[{"given":"M.\u2010Y.","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Aquaculture National Taiwan Ocean University No. 2, Peining Rd 20224 Keelung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T. 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Box 37012 National Museum of Natural History WC\u201057, MRC\u2010153 Washington DC 20013\u20107012 U.S.A."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.\u2010T.","family":"Shao","sequence":"additional","affiliation":[{"name":"Laboratory of Fish Ecology and Evolution Biodiversity Research Center, Academia Sinica Nankang 11529 Taipei Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2014,7,15]]},"reference":[{"key":"e_1_2_5_1_2_1","first-page":"738","article-title":"Larval development of Symphurus williamsi (Cynoglossidae: Pleuronectiformes) from the Gulf of California","volume":"97","author":"Aceves\u2010Medina G.","year":"1999","journal-title":"Fishery Bulletin"},{"key":"e_1_2_5_1_3_1","first-page":"640","volume-title":"Ontogeny and Systematics of Fishes","author":"Ahlstrom E. H.","year":"1984"},{"doi-asserted-by":"crossref","unstructured":"Akimoto S. Kinoshita S. Sezaki K. Mitani I. &Watabe S.(2002). 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