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The Rhigonematida (Nematoda) of Diplopods : reclassification and its cladistic representation

1985; EDP Sciences; Volume: 60; Issue: 6 Linguagem: Inglês

10.1051/parasite/1985606685

2772-4042

Martin L. Adamson, Daniel Van Waerebeke,

Marine Biology and Ecology Research

Morphological variation in the Rhigonematida (Nematoda) is reviewed with the aim of identifying evolutionary trends to construct a reclassification. The order is divided into two superfamilies, namely the Rhigonematoidea and the Ransomnematoidea, and a cladistic representation of the generic relationships is given for each. The Rhigonematoidea includes the Rhigonematidae with Rhigonema, Xustrostoma, Obainia and Glomerinema, and the Ichthyocephalidae with Ichthyocephalus, Paraichthyocephalus and Ichthyocephaloides. The Ransomnematoidea includes the Ransomnematidae with Ransomnema, the Hethidae with Heth, and the Carnoyidae with Carnoya, Rondonema, Urucuia, Raonema, Clementeia, Brumptaemilius and Waerebekeia. Geographical and host distributions are reviewed and it is suggested that Rhigonema may be a paraphyletic group including primitive members of several different lineages.