Description ofSynhimantus (Dispharynx) MawsonaeN. SP. and ARedescription ofProcyrnea Dollfusi(Mawson, 1968) (Nematoda:Spirurida) From the Southern Boobook Owl,Ninox Boobook(Latham,1802) (Aves: Strigidae)

SummarySynhimantus (Dispharynx) mawsonae n. sp. is described from the boobook owl, Ninox boobook (Latham, 1802) (Aves: Strigidae), from New South Wales, Australia. The new species differs from congeners in the number and arrangement of pedunculate caudal papillae, length and shape of spicules, in having straight, only slightly sinuous cordons and in having tricuspid cervical papillae. Procyrnea dollfusi (Mawson, 1968) is redescribed from the type host, N. boobook; new features described are the imbricated cervical cuticle and the ornamentation of the tail of the male. Synhimantus (Synhimantus) laticeps (Rudolphi, 1819) is also reported from N. boobook, confirming original records and extending its geographical range within Australia.