Paraochoterenella javanensis gen. et sp n. (Filarioidea : Onchocercidae) from Rana cancrivora (Amphibia : Anura) in West Java, Indonesia

Paraochoterenella javanensis gen. et sp. n. (Filarioidea: Onchocercidae) is described from the mesentery of the frog Rana cancrivora Gravenhorst in We st Java, Indonesia. Paraochoterenella javanensis presently represents the o nly species in this newly created genus. Three of 13 frogs contained mature male and female worms and microfilariae. Paraochoterenella is distinguishe d from the other 4 genera, Foleyellides Caballero, Ochoterenella Caballero, Madochotera Bain and Brunhes, and Paramadochotera Esslinger in the subfami ly Waltonellinae Bain and Prod'hon by the presence of cuticularized parasto mal structures in both sexes, a distinct cuticularized buccal capsule, the lack of both lateral and caudal alae, and the presence of scattered (nonori ented) minute bosses on the cuticle of the midbody region. The microfilaria e are unsheathed and slightly narrowed at the caudal extremity, with a 10:1 length to width ratio. Paraochoterenella represents the second genus in th e subfamily Waltonellinae present in southern Asia and the first report of a filarial species in the subfamily from an Indonesian amphibian. A revised key to the genera is presented in light of this new addition to the subfam ily.