Thulinius saltursus comb. nov.: a new systematic position for Isohypsibius saltursus Schuster, Toftner & Grigarick, 1978 (Eutardigrada: Hypsibiidae)and a key for the genus Thulinius

Based on the type material Thulinius saltursus comb. nov., is redescribed. T. saltursus is very similar to other members of the genus Thulinius, but it differs from the most similar species mainly by morphometric characters of the buccal tube, claws and the presence of lunules only on the external claws. In this paper we also provide a key for all Thulinius species known to date and make some remarks on their distribution