Description of a new species of <italic>Ixodes</italic> Latreille, 1795 (Acari: Ixodidae) and redescription of <italic>I. priscicollaris</italic> Schulze, 1932, parasites of New Guinea rodents (Rodentia: Muridae).

<italic>Ixodes goliath</italic> n. sp. (Acari: Ixodidae), is described based on females collected from the eastern hyomys, <italic>Hyomys goliath</italic> (Milne-Edwards) (Rodentia: Muridae) from Papua New Guinea. Females of <italic>I. goliath</italic> n. sp. are similar to those of <italic>I. priscicollaris</italic> Schulze, 1932 but can be distinguished by the overall size, porose areas sculpture and shape of palpal segment I ventrally. For comparative purposes, the female of <italic>I. priscicollaris</italic> is redescribed. Studied females of <italic>I. priscicollaris</italic> were found on murid rodents and <italic>Phascogale</italic> sp. (Dasyuromorphia: Dasyuridae) from Indonesia (Papua Province) and Papua New Guinea. [ABSTRACT FROM AUTHOR]