{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:55:17Z","timestamp":1791248117197,"version":"4.1.0"},"reference-count":23,"publisher":"American Society of Parasitologists","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Parasitology"],"published-print":{"date-parts":[[2024,8,5]]},"abstract":"<jats:p>Two new species of lung-dwelling nematodes are described from North American frogs: Rhabdias aurorae n. sp. from Rana aurora and Rhabdias conni n. sp. from Rana clamitans and Rana catesbeiana from Arkansas; the latter species was also found in Oklahoma and Georgia. Rhabdias aurorae n. sp. differs from other Nearctic congeners in the combination of the following characteristics: buccal capsule 22\u201325 \u00b5m wide, elongated tail covered with inflated cuticle, esophagus with prominent dilatation in anterior part and 6 small circumoral lips. Rhabdias conni n. sp. is morphologically closest to Rhabdias ranae Walton, 1929 and Rhabdias joaquinensis Ingles, 1936; it differs from them in the shape of lateral pseudolabia, the dimensions of the body, and the egg size. Both new species were found to be significantly different from the Nearctic congeners in the nucleotide sequences of nuclear ribosomal DNA (18S-ITS-28S region), 12S, and CO1 mitochondrial genes. The 2 new species differ from other currently sequenced Nearctic congeners by 1.1\u20132.7% of nucleotide positions in the nuclear rDNA region, 1.3\u20133.4% in the 12S gene, and 3.4\u20139.4% in CO1 gene. Molecular phylogenetic analysis based on nuclear ribosomal DNA sequences placed both new species into the clade consisting of Nearctic and Neotropical Rhabdias spp. The position of Rh. aurorae n. sp. within the clade is uncertain because of a polytomy, but Rh. conni n. sp. is nested within the \u201cRh. joaquinensis complex\u201d related to Rh. ranae and Rhabdias tarichae Kuzmin, Tkach, and Snyder, 2003. The phylogenetic analysis based on nuclear ribosomal DNA sequences has revealed 3 evolutionary host-switching events from anuran to caudatan hosts among Rhabdias spp. that occurred in the Nearctic and Palearctic. The molecular phylogeny also suggests that Rhabdias may have originally evolved in what is now Africa.<\/jats:p>","DOI":"10.1645\/24-10","type":"journal-article","created":{"date-parts":[[2024,8,9]],"date-time":"2024-08-09T00:28:11Z","timestamp":1723163291000},"page":"339-350","source":"Crossref","is-referenced-by-count":3,"title":["Descriptions and Phylogenetic Affinities of Two New Species of Rhabdias Stiles and Hassall, 1905 (Nematoda: Rhabdiasidae) from North American Frogs: Are We Still Only Scratching the Surface?"],"prefix":"10.1645","volume":"110","author":[{"given":"Yuriy","family":"Kuzmin","sequence":"first","affiliation":[{"name":"Schmalhausen Institute of Zoology, 15 Bohdana Khmelnytskoho Street, Kyiv 01054, Ukraine."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roman","family":"Svitin","sequence":"additional","affiliation":[{"name":"Schmalhausen Institute of Zoology, 15 Bohdana Khmelnytskoho Street, Kyiv 01054, Ukraine."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chris T.","family":"McAllister","sequence":"additional","affiliation":[{"name":"Natural Sciences Division, Northeast Texas Community College, Mt. Pleasant, Texas 75455."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura","family":"Guderyahn","sequence":"additional","affiliation":[{"name":"Natural Area Ecologist, City of Portland, 1120 SW 5th Avenue, Portland, Oregon 97204."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5084-7566","authenticated-orcid":false,"given":"Vasyl V.","family":"Tkach","sequence":"additional","affiliation":[{"name":"Department of Biology, University of North Dakota, 10 Cornell Street, Stop 9019, Grand Forks, North Dakota 58202."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1220","reference":[{"key":"3","doi-asserted-by":"publisher","unstructured":"D. Darriba, G. L. Taboada, R. Doallo, et al.  \"Nature Methods.\"  9, \"jModelTest 2: more models, new heuristics and parallel computing.\" 772 (2012)","DOI":"10.1038\/nmeth.2109"},{"key":"23","unstructured":"V. V. Tkach  and J. 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Snyder,  \"International Journal for Parasitology.\"  44, \"Molecular insight into systematics, host associations, life cycles and geographic distribution of the nematode family Rhabdiasidae.\" 273 (2014)","DOI":"10.1016\/j.ijpara.2013.12.005"}],"container-title":["Journal of Parasitology"],"original-title":[],"deposited":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:23:29Z","timestamp":1791246209000},"score":1,"resource":{"primary":{"URL":"https:\/\/bioone.org\/journals\/journal-of-parasitology\/volume-110\/issue-4\/24-10\/Descriptions-and-Phylogenetic-Affinities-of-Two-New-Species-of-Rhabdias\/10.1645\/24-10.full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,8,5]]},"references-count":23,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2024,8,1]]}},"URL":"https:\/\/doi.org\/10.1645\/24-10","relation":{},"ISSN":["0022-3395","1937-2345"],"issn-type":[{"value":"0022-3395","type":"print"},{"value":"1937-2345","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,8,5]]}}}