{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T23:53:35Z","timestamp":1767916415718,"version":"3.49.0"},"reference-count":37,"publisher":"Cambridge University Press (CUP)","issue":"4","license":[{"start":{"date-parts":[[2016,7,26]],"date-time":"2016-07-26T00:00:00Z","timestamp":1469491200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Helminthol."],"published-print":{"date-parts":[[2017,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Saccocoelioides olmecae<\/jats:italic> n. sp. is described from specimens recovered from the intestine of the fat sleeper <jats:italic>Dormitator maculatus<\/jats:italic> (Bloch) (Perciformes: Eleotridae) collected in six localities along the coast of the Gulf of Mexico. The new species is mainly distinguished from the other three described species of <jats:italic>Saccocoelioides<\/jats:italic> Szidat, 1954 from North and Middle America (i.e. <jats:italic>S. sogandaresi<\/jats:italic> Lumsden, 1963, <jats:italic>S. chauhani<\/jats:italic> Lamothe-Argumedo, 1974 and <jats:italic>S. lamothei<\/jats:italic> Aguirre-Macedo &amp; Violante-Gonz\u00e1lez, 2008) by having an elongated body, a sac-like caecum, a uterus that extends to the first third of body and by having vitelline follicles longitudinally elongated reaching the posterior end of the body. Sequences of the large subunit (LSU) of the ribosomal DNA, including the domain D1\u2013D3, and the internal transcribed spacer 2 (ITS2) were used independently and concatenated to corroborate the morphological distinction among <jats:italic>S. olmecae<\/jats:italic> n. sp., <jats:italic>S. chauhani<\/jats:italic> and <jats:italic>S. lamothei<\/jats:italic> from freshwater and brackish-water fish from Middle America. The genetic divergence estimated among the three species of <jats:italic>Saccocoelioides<\/jats:italic> was very low: 1% for LSU and from 1 to 4% for ITS2. Maximum likelihood and Bayesian inference analyses for each dataset and both datasets combined revealed that <jats:italic>S. olmecae<\/jats:italic> n. sp. represents an independent clade with moderate bootstrap support and posterior probabilities. This is the third species of <jats:italic>Saccocoelioides<\/jats:italic> described in Mexico, and the 17th species from the Americas.<\/jats:p>","DOI":"10.1017\/s0022149x1600047x","type":"journal-article","created":{"date-parts":[[2016,7,26]],"date-time":"2016-07-26T04:22:38Z","timestamp":1469506958000},"page":"504-516","source":"Crossref","is-referenced-by-count":11,"title":["Morphological and molecular analyses of a new species of <i>Saccocoelioides<\/i> Szidat, 1954 (Haploporidae Nicoll, 1914) in the fat sleeper <i>Dormitator maculatus<\/i> (Bloch) (Perciformes: Eleotridae) from the Gulf of Mexico"],"prefix":"10.1017","volume":"91","author":[{"given":"L.","family":"Andrade-G\u00f3mez","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C.D.","family":"Pinacho-Pinacho","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.S.","family":"Hern\u00e1ndez-Orts","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.L.","family":"Sereno-Uribe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Garc\u00eda-Varela","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2016,7,26]]},"reference":[{"key":"S0022149X1600047X_ref32","first-page":"37","article-title":"Cenotes (sinkholes) of the Yucatan Peninsula, Mexico as a habitat of adult trematodes of fish","volume":"42","author":"Scholz","year":"1995","journal-title":"Folia Parasitologica"},{"key":"S0022149X1600047X_ref22","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.3856.2.1"},{"key":"S0022149X1600047X_ref24","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1079\/9780851995878.0129","volume-title":"Keys to the Trematoda, Volume 2","author":"Overstreet","year":"2005"},{"key":"S0022149X1600047X_ref34","doi-asserted-by":"publisher","DOI":"10.2307\/3285148"},{"key":"S0022149X1600047X_ref25","doi-asserted-by":"crossref","first-page":"1","DOI":"10.11646\/zootaxa.1534.1.1","article-title":"Trematode parasites (Platyhelminthes) of wildlife vertebrates in Mexico","volume":"1534","author":"P\u00e9rez Ponce de Le\u00f3n","year":"2007","journal-title":"Zootaxa"},{"key":"S0022149X1600047X_ref35","first-page":"1","article-title":"Trematodos nuevos de peces de agua dulce de la Rep\u00fablica de Argentina y un intento por aclarar su car\u00e1cter marino","volume":"3","author":"Szidat","year":"1954","journal-title":"Revista del Instituto Nacional de Investigaci\u00f3n de las Ciencias Naturales y Museo de Argentino de Ciencias Naturales \u2018Bernardino Rivadavia\u2019, Ciencias Zool\u00f3gicas"},{"key":"S0022149X1600047X_ref14","doi-asserted-by":"publisher","DOI":"10.1093\/bioinformatics\/17.8.754"},{"key":"S0022149X1600047X_ref40","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/25.24.4876"},{"key":"S0022149X1600047X_ref36","first-page":"87","article-title":"Saccocoelioides octavus n. sp., una nueva especie del g\u00e9nero Saccocoelioides Szidat 1954 (Trematoda, Haploporinae Looss 1902)","volume":"10","author":"Szidat","year":"1970","journal-title":"Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia e Instituto Nacional de Investigaci\u00f3n de las Ciencias Naturales Zoolog\u00eda"},{"key":"S0022149X1600047X_ref10","doi-asserted-by":"publisher","DOI":"10.2478\/s11686-006-0037-1"},{"key":"S0022149X1600047X_ref33","doi-asserted-by":"publisher","DOI":"10.1093\/bioinformatics\/btl446"},{"key":"S0022149X1600047X_ref16","doi-asserted-by":"publisher","DOI":"10.1590\/S0074-02761986000100009"},{"key":"S0022149X1600047X_ref18","doi-asserted-by":"publisher","DOI":"10.2307\/3275995"},{"key":"S0022149X1600047X_ref17","first-page":"39","article-title":"Estudio helmintol\u00f3gico de los animales silvestres de la Estaci\u00f3n de Biolog\u00eda Tropical \u2018Los Tuxtlas\u2019, Veracruz. 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