Tetraphyllidean and onchoproteocephalidean cestodes of elasmobranchs from Moreton Bay, Australia: description of two new species and new records for seven described species Scott C. Cutmore . Thomas H. Cribb . Michael B. Bennett . Ian Beveridge Received: 22 June 2018 / Accepted: 13 August 2018 Ó Springer Nature B.V. 2018 Abstract Parasitological examination of elasmo- branchs of Moreton Bay, Queensland, Australia, resulted in the discovery of cestodes belonging to several armed genera of the Tetraphyllidea and Onchoproteocephalidea. Two new tetraphyllideans, Yorkeria moretonensis n. sp. and Yorkeria williamsi n. sp., are described from Chiloscyllium cf. punctatum (Hemiscylliidae). Yorkeria moretonensis n. sp. differs from its congeners in the possession of vitelline follicles that are discontinuous in the region of the ovary and in the length of its pedicels. Yorkeria williamsi n. sp. is most similar to Y. parva Southwell, 1927, but has larger, oval bothridia, longer pedicels and differences in the sizes of the scolex hooks. Yorkeria longstaffae Caira, Jensen & Rajan, 2007 is reported from Moreton Bay for the first time, and Spiniloculus mavensis Southwell, 1925 is re-reported from the type-locality and likely type-host (Moreton Bay and Chiloscyllium cf. punctatum, respectively), over 90 years after its original description. Six known onchoproteocephalideans, Acanthobothrium cannoni Campbell & Beveridge, 2002, A. chisholmae Camp- bell & Beveridge, 2002, A. ocallaghani Campbell & Beveridge, 2002, A. margieae Fyler, 2011, Megalon- chos shawae Caira, Reyda & Mega, 2007 and M. sumansinghai Caira, Reyda & Mega, 2007, are reported from Moreton Bay for the first time, repre- senting significant range extensions for all species. Introduction As part of a parasitological survey of commercial fishes of Moreton Bay, in south-eastern Queensland, Australia, a range of elasmobranchs and teleosts were examined for adult and larval cestodes. From these collections, new species and new host/locality records for specimens belonging to the Phyllobothriidea Caira, Jensen, Waeschenbach, Olson & Littlewood, 2014have been reported by Cutmore et al. (2017) and the Trypanorhyncha Diesing, 1863 by Beveridge This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as urn:lsid:zoobank.org:pub:42732B3E-2FED-488E-9896- 7843B7BD6004. This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number. This is the Version of Record. This article is part of the Topical Collection Cestoda. S. C. Cutmore (&) Á T. H. Cribb School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia e-mail: scott.cutmore@uqconnect.edu.au M. B. Bennett School of Biomedical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia I. Beveridge Faculty of Veterinary and Agricultural Sciences, Veterinary Clinical Centre, The University of Melbourne, Werribee, VIC 3030, Australia 123 Syst Parasitol https://doi.org/10.1007/s11230-018-9817-x