Syphacia Longaecauda N. Sp. (Nematoda: Osyuridae) Syphacinea from Melomys SPP. (Muridae: Hydromyinae) from Papua New Guinea and Irian Jaya Indonesia

<p dir="ltr">A new oxyurid nematode <i>Syphacia (Syphacia) longaecauda</i> n. sp. is described from the caecum and colon of the hydromyine rodents <i>Melomys monktoni</i> (type host) and <i>M. rubex</i> from Papua New Guinea and Irian Jaya, Indonesia. <i>Syphacia longaecauda</i> has an oval, laterally extended, relatively large cephalic plateau and can be distinguished from other species of <i>Syphacia</i> with similar characters by, amongst other features, tail length. The significance of the distribution of <i>S. longaecauda</i>, apparently restricted to New Guinea, is discussed.</p>