title: A new Synthesium species (Digenea: Brachycladiidae) from the bottlenose dolphin Tursiops truncatus (Cetacea: Delphinidae) in Southwestern Atlantic waters.
abstract: A new species of Synthesium from the bottlenose dolphin Tursiops truncatus in South Brazilian waters is described. Morphological and molecular identification was performed, and phylogenetic analyses were carried out using the ribosomal small subunit and internal transcribed spacer 1 and the mitochondrial NDH dehydrogenase subunit 3 and cytochrome c oxidase subunit 1 genes. The main characteristics of the new species are the subterminal round-shaped oral sucker, the anterior distribution of vitellaria reaching the level of the ovary and the oval-shaped testes. The results obtained with the molecular markers supported the inclusion of the specimens into the genus Synthesium. The nucleotide divergence detected for the mitochondrial genes among the new species and others of the same genus supported the erection of a new species. This is the ninth species assigned to the genus and the third Synthesium species recorded in the South Atlantic Ocean.
authors.affiliation: Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, 18618-689, Brazil. mbe.bio@gmail.com.
authors.forename: Mariana B
authors.initials: MB
authors.lastname: Ebert
authors.affiliation: Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, 18618-689, Brazil.
authors.forename: Maria I
authors.initials: MI
authors.lastname: Mülller
authors.affiliation: Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo (USP), São Paulo, São Paulo, 05508-270, Brazil.
authors.forename: Juliana
authors.initials: J
authors.lastname: Marigo
authors.affiliation: Instituto de Biologia, Universidade Federal de Pelotas (UFPel), Pelotas, Rio Grande do Sul, 96160-000, Brazil.
authors.forename: Ana L S
authors.initials: ALS
authors.lastname: Valente
authors.affiliation: Universidade da Região de Joinville (UNIVILLE), Joinville, Santa Catarina, 89240-000, Brazil.
authors.forename: Marta J
authors.initials: MJ
authors.lastname: Cremer
authors.affiliation: Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, 18618-689, Brazil.
authors.forename: Reinaldo J
authors.initials: RJ
authors.lastname: da Silva
mesh_terms: D000818:Animals; D001267:Atlantic Ocean; D050681:Bottle-Nosed Dolphin / Q000469:parasitology*; D001938:Brazil; D002237:Carbohydrate Dehydrogenases / Q000235:genetics; D021901:DNA, Intergenic / Q000235:genetics; D003576:Electron Transport Complex IV / Q000235:genetics; D005260:Female; D008297:Male; D010802:Phylogeny; D054679:Ribosome Subunits, Small / Q000235:genetics; D014200:Trematoda / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*
chemical_list: D021901:DNA, Intergenic; D002237:Carbohydrate Dehydrogenases; C020669:Glycerate dehydrogenase; D003576:Electron Transport Complex IV
keywords: Brachycladiidae; Molecular identification; Morphology; South Atlantic Ocean; Synthesium; Tursiops truncatus