Tikusnema javaense n. gen., n. sp. (Nematoda: Acuarioidea) and other nematodes from Rattus argentiventer collected in west Java, Indonesia.

Nematodes collected from the ricefield rat, Rattus argentiventer (Rodentia: Muridae), in Pusakanagara and Sukamandi, West Java, Indonesia, are reported. Tikusnema javaense n. gen., n. sp. (Nematoda:Acuariidae:Seuratiinae) is described from the small intestine. This new genus is distinguished readily from other genera of the subfamily Seuratiinae in having 4 strongly protruded cuticular leaves in the posterior cephalic portion and in having a pair of prominent cuticular ornamentations posterior to deirids. Besides T. javaense, Eucoleus bacillatus, Strongyloides ratti, Nippostrongylus brasiliensis, Syphacia muris, and Physaloptera sp. were detected.