Systematic Parasitology

, Volume 29, Issue 2, pp 149–158 | Cite as

Ardeirhynchus n. g. (Palaeacanthocephala: Polymorphida: Polymorphidae), with a redescription of A. spiralis (Rudolphi, 1809) n. comb.

  • Zlatka M. Dimitrova
  • Boyko B. Georgiev


Ardeirhynchus spiralis (Rudolphi, 1809) n. g., n. comb. (syns Echinorhynchus spiralis, Prosthorhynchus spiralis and Plagiorhynchus spiralis), a parasite of herons (Ciconiiformes: Ardeidae), is redescribed on the basis of the holotype from Ixobrychus minutus and specimens from Ardeola ralloides (new host record) in Bulgaria. A. spiralis is a member of the family Polymorphidae and not of the Plagiorhynchidae in which it was previously classified. Ardeirhynchus n. g. is distinguished from the most morphologically similar genus, Arhythmorhynchus Lühe, 1911, by the position of the male genital system, which occupies the posterior 1/8-1/6 part of the trunk, the distribution of hypodermal nuclei in groups in the anterior part and in lateral rows along the length of the posterior part of the trunk, a considerably shorter neck, minute trunk spines and a terminal genital pore.


Anterior Part Posterior Part Genital System Similar Genus Genital Pore 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • Zlatka M. Dimitrova
    • 1
  • Boyko B. Georgiev
    • 2
  1. 1.Section of ZoologyHigher Institute of Zootechnics and Veterinary MedicineStara ZagoraBulgaria
  2. 2.Institute of ParasitologyBulgarian Academy of SciencesSofiaBulgaria

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