{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T01:07:36Z","timestamp":1759972056690,"version":"build-2065373602"},"reference-count":13,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2018,5,7]],"date-time":"2018-05-07T00:00:00Z","timestamp":1525651200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["anatomypubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Anatomical Record"],"published-print":{"date-parts":[[2018,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>The spiracle of elasmobranchs (sharks, skates, and rays) is a gill\u2010slit\u2010derived tube located behind the eye. Its inner structure was well studied in the late nineteenth to early twentieth century, but its entire morphology has rarely been characterized and is poorly understood. The present study shows the three\u2010dimensional morphology of the spiracular tube for the first time, using resin injection and CT scanning, in the Japanese bullhead shark. The spiracular tube is characterized by the presence of two caeca (dorsal and ventral spiracular caeca) on the medial wall of the spiracular tube and the presence of a pseudobranch on the anterior wall. This study provides a basis for further studies on the morphological diversity, function, and evolution of spiracles in elasmobranch fishes. Anat Rec, 2018. \u00a9 2018 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/ar.23836","type":"journal-article","created":{"date-parts":[[2018,4,20]],"date-time":"2018-04-20T18:55:02Z","timestamp":1524250502000},"page":"1336-1341","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Morphology of a Hidden Tube: Resin Injection and CT Scanning Reveal the Three\u2010dimensional Structure of the Spiracle in the Japanese Bullhead Shark <i>Heterodontus japonicus<\/i> (Chondrichthyes; Heterodontiformes; Heterodontidae)"],"prefix":"10.1002","volume":"301","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9924-6566","authenticated-orcid":false,"given":"Taketeru","family":"Tomita","sequence":"first","affiliation":[{"name":"Hokkaido University Museum 3\u20101\u20101 Minato\u2010cho, Hakodate Hokkaido Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Minoru","family":"Toda","sequence":"additional","affiliation":[{"name":"Zoological Laboratory Okinawa Churashima Research Center, Okinawa Churashima Foundation 888, Ishikawa, Motobu\u2010cho Okinawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kei","family":"Miyamoto","sequence":"additional","affiliation":[{"name":"Zoological Laboratory Okinawa Churashima Research Center, Okinawa Churashima Foundation 888, Ishikawa, Motobu\u2010cho Okinawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiichi","family":"Ueda","sequence":"additional","affiliation":[{"name":"Zoological Laboratory Okinawa Churashima Research Center, Okinawa Churashima Foundation 888, Ishikawa, Motobu\u2010cho Okinawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuhiro","family":"Nakaya","sequence":"additional","affiliation":[{"name":"Hokkaido University 3\u20101\u20101 Minato\u2010cho, Hakodate Hokkaido Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,5,7]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.6505680"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00611999"},{"key":"e_1_2_6_4_1","first-page":"1","article-title":"Comparative anatomy, phylogeny and cladistic classification of the order Orectolobiformes (Chondrichthyes, Elasmobranchii)","volume":"48","author":"Goto T.","year":"2001","journal-title":"Mem Grad Sch Fish Sci Hokkaido Univ"},{"key":"e_1_2_6_5_1","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1242\/jeb.37.1.11","article-title":"The mechanism of gill ventilation in the dogfish and skate","volume":"37","author":"Hughes GM.","year":"1960","journal-title":"J Exp Biol"},{"key":"e_1_2_6_6_1","article-title":"Vergleichende Anatomie der Myxinoiden. 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