{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T22:43:16Z","timestamp":1783723396358,"version":"3.55.0"},"reference-count":39,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2012,12,18]],"date-time":"2012-12-18T00:00:00Z","timestamp":1355788800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American J Primatol"],"published-print":{"date-parts":[[2013,1]]},"abstract":"<jats:p>More species of nocturnal primates are now recognized than in the past, because many are cryptic species. Subtle morphological disparities, such as pelage pattern and color variation, vocal cues, and genetics have aided in elucidating the number of diagnosable species in a genus. The slow lorises (genus <jats:italic><jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>ycticebus<\/jats:italic>) once included only two species, but recent taxonomic studies resulted in the description of three additional species; further incompletely explored variability characterizes each of the currently described species. The <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>ornean loris in particular is characterized by pelage and body size variation. In this study, we explored facemask variation in the <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>ornean loris (<jats:italic><jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>. menagensis<\/jats:italic>). Differing facemask patterns, particularly influenced by the amount of white on the face, significantly clustered together by geographic regions, separated by notable geographic boundaries. Our results support the recognition of four species of <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>ornean lorises: <jats:italic><jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>. menagensis, <jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>. bancanus, <jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>. borneanus,<\/jats:italic> and <jats:italic><jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>. kayan<\/jats:italic>. Genetic studies are required to support these findings and to refine further our understanding of the marked variability within the <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>ornean loris populations. Am. J. Primatol. 75:46\u201056, 2013. \u00a9 2012 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/ajp.22071","type":"journal-article","created":{"date-parts":[[2012,12,18]],"date-time":"2012-12-18T20:53:22Z","timestamp":1355864002000},"page":"46-56","source":"Crossref","is-referenced-by-count":42,"title":["Taxonomy of the <scp>B<\/scp>ornean Slow Loris, With New Species <i><scp>N<\/scp>ycticebus kayan<\/i> (Primates, Lorisidae)"],"prefix":"10.1002","volume":"75","author":[{"given":"RACHEL A.","family":"MUNDS","sequence":"first","affiliation":[{"name":"Department of Anthropology University of Missouri Columbia  Columbia Missouri"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. A. 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