title: Novel morphological and molecular data for Corynosoma hannae Zdzitowiecki, 1984 (Acanthocephala: Polymorphidae) from teleosts, fish-eating birds and pinnipeds from New Zealand.
abstract: The polymorphid acanthocephalan, Corynosoma hannae Zdzitowiecki, 1984 is characterised on the basis of newly collected material from a New Zealand sea lion, Phocarctos hookeri (Gray), and long-nosed fur seal, Arctophoca forsteri (Lesson) (definitive hosts), and from Stewart Island shags, Leucocarbo chalconotus (Gray), spotted shags, Phalacrocorax punctatus (Sparrman) and yellow-eyed penguins, Megadyptes antipodes (Hombron & Jacquinot) (non-definitive hosts) from New Zealand. Specimens are described in detail and scanning electron micrographs for C. hannae are provided. Additionally, cystacanths of C. hannae are reported and described for the first time from the body cavity and mesenteries of New Zealand brill, Colistium guntheri (Hutton) and from New Zealand sole, Peltorhamphus novaezeelandiae Günther from Kaka Point, Otago in New Zealand. Partial sequence data for the mitochondrial cytochrome c oxidase 1 gene (cox1) for adults, immature specimens and cystacanths of C. hannae were obtained. Phylogenetic analyses of the newly-generated sequences and for available cox1 sequences of Corynosoma spp. revealed a close relationship between C. hannae and C. australe Johnston, 1937, both species infecting pinnipeds in the Southern Hemisphere. However, a morphological comparison of the species suggests that C. hannae mostly closely resembles C. evae Zdzitowiecki, 1984 and C. semerme (Forssell, 1904), the latter of which occurs in pinnipeds in the Northern Hemisphere.
authors.affiliation: Instituto de Biología Marina y Pesquera Almirante Storni, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Güemes 1030, 8520, San Antonio Oeste, Río Negro, Argentina. Electronic address: jesus.hernandez.orts@gmail.com.
authors.forename: Jesús S
authors.initials: JS
authors.lastname: Hernández-Orts
authors.affiliation: South Australian Museum, North Terrace, Adelaide, South Australia 5070, Australia.
authors.forename: Lesley R
authors.initials: LR
authors.lastname: Smales
authors.affiliation: Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Avenida Universidad 3000, Ciudad Universitaria, CP 04510, Distrito Federal, Mexico.
authors.forename: Carlos D
authors.initials: CD
authors.lastname: Pinacho-Pinacho
authors.affiliation: Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Avenida Universidad 3000, Ciudad Universitaria, CP 04510, Distrito Federal, Mexico.
authors.forename: Martín
authors.initials: M
authors.lastname: García-Varela
authors.affiliation: Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand.
authors.forename: Bronwen
authors.initials: B
authors.lastname: Presswell
mesh_terms: D000049:Acanthocephala / Q000033:anatomy & histology* / Q000145:classification / Q000235:genetics* / Q000648:ultrastructure; D000818:Animals; D001715:Bird Diseases / Q000469:parasitology; D001717:Birds / Q000469:parasitology*; D005393:Fish Diseases / Q000469:parasitology; D005399:Fishes / Q000469:parasitology*; D050259:Genes, Mitochondrial; D049751:Genome, Helminth; D006374:Helminthiasis, Animal / Q000453:epidemiology / Q000469:parasitology*; D007422:Intestines / Q000469:parasitology; D008855:Microscopy, Electron, Scanning; D009520:New Zealand; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D046429:Spheniscidae / Q000469:parasitology*
keywords: Acanthocephala; Corynosoma; Fish-eating birds; New Zealand; Paratenic hosts; Pinnipeds