Choanocotyle platti sp. nov. from the northern long-necked turtle, Chelodina rugosa (Pleurodira, Chelidae) in Australia

Vasyl V. Tkach, Scott D. Snyder

Research output: Contribution to journalArticle

12 Scopus citations


Choanocotyle platti sp. nov. (Digenea, Choanocotylidae) is described from the northern long-necked turtle, Chelodina rugosa (Pleurodira, Chelidae) from the Daly and Mary Rivers, Northern Territory, Australia. This is the fifth known member of Choanocotyle. Choanocotyle platti sp. nov. differs from Choanocotyle nematoides Jue Sue et Platt, 1998 and Choanocotyle hobbsi Platt et Tkach, 2003 by smaller body length, larger oral sucker, relatively greater distance between testes, and prepharynx with an infolded posterior region. In addition the new species does not have the looped cirrus sac characteristic of Choanocotyle nematoides. Comparison of sequences of 18S, ITS (ITS1, 5.8S, ITS2) and partial 28S regions of nuclear rDNA among all 3 species strongly supports the status of Choanocotyle platti sp. nov. as a new species.

Original languageEnglish (US)
Pages (from-to)318-324
Number of pages7
JournalActa Parasitologica
Issue number4
Publication statusPublished - Dec 1 2007



  • 18S gene
  • 28S gene
  • Australia
  • Chelodina rugosa
  • Choanocotyle platti sp. nov.
  • Choanocotylidae
  • DNA sequences
  • Digenea
  • ITS region
  • Northern Territory
  • Northern long-necked turtle
  • Plagiorchiida

ASJC Scopus subject areas

  • Parasitology

Cite this