Aptorchis glandularis n. sp. (Digenea

Plagiorchioidea) from the northwestern red-faced turtle, Emydura australis, (Pleurodira: Chelidae) in the Kimberley, Western Australia

Vasyl V. Tkach, Scott D. Snyder

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Aptorchis glandularis n. sp. is described from the intestine of the northwestern red-faced turtle, Emydura australis (Pleurodira: Chelidae), in the Kimberley, Western Australia. This digenean is morphologically most similar to Aptorchis aequalis but can be differentiated readily from the latter species by the presence of ventral glands arranged in 3 rows. This feature is unique among plagiorhioidean digeneans and resembles the glands observed in some monostome digeneans in Notocotylidae and Microscaphidiidae. Comparison of approximately 2,600 bases of ribosomal DNA (partial 18S, complete ITS1 +5.8S + ITS2, partial 28S), obtained from all 5 known Aptorchis species, strongly supports the status of Aptorchis glandularis n. sp. as a new species. Phylogenetic analysis of these sequence data demonstrates 2 strongly supported clades (A. pearsoni + A. megacetabulus) and (A. aequalis + A. glandularis n. sp.), with A. megapharynx representing a separate lineage. This is the first report of an endo-parasite from Emydura australis.

Original languageEnglish (US)
Pages (from-to)918-924
Number of pages7
JournalJournal of Parasitology
Volume94
Issue number4
DOIs
StatePublished - Aug 1 2008

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Notocotylidae
Chelidae
Western Australia
Turtles
Digenea (Trematoda)
Ribosomal DNA
turtle
ribosomal DNA
turtles
Intestines
Sequence Analysis
Parasites
intestines
parasites
new species
phylogeny
parasite
phylogenetics
DNA

ASJC Scopus subject areas

  • Parasitology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Aptorchis glandularis n. sp. (Digenea : Plagiorchioidea) from the northwestern red-faced turtle, Emydura australis, (Pleurodira: Chelidae) in the Kimberley, Western Australia. / Tkach, Vasyl V.; Snyder, Scott D.

In: Journal of Parasitology, Vol. 94, No. 4, 01.08.2008, p. 918-924.

Research output: Contribution to journalArticle

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