On the identity of Labronema plica Ciobanu, Popovici & Decraemer, 2004 and proposal for its transfer to the genus Thonus Thorne, 1974 (Nematoda: Dorylaimoidea)

摘要

During a revision of a number of species belonging to the genus Thonus Thorne, 1974 and analysis of the relationships of this genus with its relatives, including Cras-solabium Yeates, 1967, Labronema Thorne, 1939 and Takamangai Yeates, 1967 (see Pena-Santiago & Ciobanu, 2007a, b), several species with problematical identity or taxonomy were re-examined to try to establish more robust diagnostic features to separate the taxa concerned. Labronema plica Ciobanu, Popovici & Decraemer, 2004, described from a salt-affected area in Romania, is an interesting species as its general morphology also fits the Thonus pattern. Type material (female holotype, one female paratype and the only male paratype) were available to study, as well as one new specimen (a young female), also from the type locality. Their study provided additional data to clarify its identity.