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A new species, new host records and life cycle data for lepocreadiids (Digenea) of pomacentrid fishes from the Great Barrier Reef, Australia
Duong, B.; Cutmore, S.C.; Cribb, T.H.; Pitt, K.A.; Wee, N.Q.X.; Bray, R.A. (2022). A new species, new host records and life cycle data for lepocreadiids (Digenea) of pomacentrid fishes from the Great Barrier Reef, Australia. Syst. Parasitol. 99(3): 375-397. https://dx.doi.org/10.1007/s11230-022-10034-8
In: Systematic Parasitology. Kluwer: The Hague; Dordrecht. ISSN 0165-5752; e-ISSN 1573-5192, more
Peer reviewed article  
Available in  Authors 
Keywords
    Taxonomic status > New taxa > New species
    Opechonoides opisthoporus Duong, Cutmore, Cribb, Pitt, Wee & Bray, 2022 [WoRMS]
    Marine/Coastal
Authors  Top 
  • Duong, B.
  • Cutmore, S.C.
  • Cribb, T.H., more
  • Pitt, K.A.
  • Wee, N.Q.X.
  • Bray, R.A., more
Abstract
    A new species of lepocreadiid, Opechonoides opisthoporus n. sp., is described infecting 12 pomacentrid fish species from the Great Barrier Reef, Australia, with Abudefduf whitleyi Allen & Robertson as the type-host. This taxon differs from the only other known member of the genus, Opechonoides gure Yamaguti, 1940, in the sucker width ratio, cirrus-sac length, position of the testes, position of the pore of Laurer’s canal, and relative post-testicular distance. The new species exhibits stenoxenic host-specificity, infecting pomacentrids from seven genera: Abudefduf Forsskål, Amphiprion Bloch & Schneider, Neoglyphidodon Allen, Neopomacentrus Allen, Plectroglyphidodon Fowler & Ball, Pomacentrus Lacépède and Stegastes Jenyns. Phylogenetic analyses of 28S rDNA sequence data demonstrate that O. opisthoporus n. sp. forms a strongly supported clade with Prodistomum orientale (Layman, 1930) Bray & Gibson, 1990. The life cycle of this new species is partly elucidated on the basis of ITS2 rDNA sequence data; intermediate hosts are shown to be three species of Ctenophora. New host records and molecular data are reported for Lepocreadium oyabitcha Machida, 1984 and Lepotrema amblyglyphidodonis Bray, Cutmore & Cribb, 2018, and new molecular data are provided for Lepotrema acanthochromidis Bray, Cutmore & Cribb, 2018 and Lepotrema adlardi (Bray, Cribb & Barker, 1993) Bray & Cribb, 1996. Novel cox1 mtDNA sequence data showed intraspecific geographical structuring between Heron Island and Lizard Island for L. acanthochromidis but not for L. adlardi or O. opisthoporus n. sp.
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