Syphacia (Syphacia) Semiadii N. Sp. (Nematoda: Oxyuridae) From Halmaheramys Bokimekot Fabre Et Al., 2013 (Rodentia: Muridae) On Halmahera Island, Indonesia And A Key To The Species Present In Sulawesi And The Australian Bioregion

Syphacia (Syphacia) semiadii n. sp. is described from Halmaheramys bokimekot Fabre et al., 2013, an endemic murine of Halmahera Island, Maluku, Indonesia. Among the New Guinea/australian congeners, S. (S.) semiadii n. sp. most closely resembles S. (S.) mamelonitenuis and S. (S.) longaecauda in having a circular cephalic plate without dorsoventral constriction laterally and lacking lateral alae in both sexes. However, this species differs from S. (S.) mamelonitenuis, which has a shorter tail in both sexes and larger eggs, and from S. (S.) longaecauda, which has a longer tail in both sexes. to aid identification, we also provide a dichotomous key to the species of Syphacia in Sulawesi and the australian bioregion. Transactions of the Royal Society of South Australia Vol. 138 No. 1. 2014. P: 98–104