Redescription of Two Nematode Species Parasitic in the Japanese Clawed Salamander, Onychodactylus japonicus (Amphibia: Caudata: Hynobiidae), with Proposal of a New Genus Shunyanema (Nematoda: Oxyuroidea: Pharyngodonidae)

DOI Web Site Web Site 39 References
  • Hasegawa Hideo
    Department of Infectious Diseases, Faculty of Medicine, Oita University
  • Uchida Akihiko
    Department of Environmental Health, College of Environmental Health, Azabu University

Search this article

Abstract

Two species of parasitic nematodes, both associated with the Japanese clawed salamander Onychodactylus japonicus (Houttuyn, 1782) (Caudata: Hynobiidae), are treated in this paper. The first, Angiostoma onychodactyla Bursey and Goldberg, 2000 (Rhabditoidea: Angiostomatidae), is redefined as having an elliptical oral aperture without lips; double lateral alae; and male caudal papillae comprising nine pairs of pedunculate papillae, a single sessile papilla anterior to the anus, and two minute projections on the posterior anal lip. A new genus, Shunyanema, is established for Parapharyngodon japonicus Bursey and Goldberg, 1999 (Oxyuroidea: Pharyngodonidae). The new genus is characterized by the didelphic amphidelphic genital system, the vulva situated in the middle region of the body, and the anteriorly directed vagina in females; the absence of a V-shaped sclerotized structure supporting the genital cone in males; and the lack of an operculum and filaments in the eggs. Shunyanema japonicum comb. nov. is also redescribed and illustrated in detail.

Journal

  • Species Diversity

    Species Diversity 11 (3), 245-255, 2006

    The Japanese Society of Systematic Zoology

References(39)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top