title: Transversotrema Witenberg, 1944 (Trematoda: Transversotrematidae) from inshore fishes of Australia: description of a new species and significant range extensions for three congeners.
abstract: Four transversotrematid trematodes are reported from commercial teleost species in Australian waters. Transversotrema hunterae n. sp. is described from three species of Sillago Cuvier (Sillaginidae) from Moreton Bay, south-east Queensland. Molecular characterisation using ITS2 rDNA confirmed this stenoxenic specificity of Transversotrema hunterae n. sp., with identical sequence data from Sillago maculata Quoy & Gaimard, S. analis Whitley and S. ciliata Cuvier. Phylogenetic analysis, based on 28S rDNA data, demonstrates that T. hunterae n. sp. belongs to the 'Transversotrema licinum clade' and is most closely related to Transversotrema licinum Manter, 1970 and T. polynesiae Cribb, Adlard, Bray, Sasal & Cutmore, 2014, with the three species forming a well-supported clade in all analyses. We extend the known host and geographical ranges of three previously described Transversotrema species, T. licinum, T. elegans Hunter, Ingram, Adlard, Bray & Cribb, 2010 and T. espanola Hunter & Cribb, 2012. The new records represent significant range extensions for the three species and permit further examination of the patterns of biogeographical distribution in Australian waters. Host-specificity of Transversotrema species is examined, and the degree to which morphological analysis can inform taxonomic studies of this group is discussed.
authors: School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia. scott.cutmore@uqconnect.edu.au.
authors: Scott C
authors: SC
authors: Cutmore
authors: DigsFish Services Pty Ltd, Banksia Beach, QLD, 4507, Australia.
authors: Ben K
authors: BK
authors: Diggles
authors: School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia.
authors: Thomas H
authors: TH
authors: Cribb
mesh_terms: D063147:Animal Distribution; D000818:Animals; D001315:Australia; D061006:Bays; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D058507:Host Specificity; D010473:Perciformes / Q000469:parasitology*; D010802:Phylogeny; D011793:Queensland; D013045:Species Specificity; D014200:Trematoda / Q000145:classification* / Q000235:genetics
chemical_list: D021903:DNA, Ribosomal Spacer