A new species of Paktongius Suzuki (Opiliones: Assamiidae) from Malaysia with distinct leg apophyses

A new species of the genus Paktongius Suzuki, 1969 is described as Paktongius riedeli sp. nov. In addition to a sexually dimorphic 'gonyleptoid-like' body morphology-a characteristic commonly attributed in the genus Paktongius to a proximo-laterally expanded scutum and exceptionally enlarged coxae IV-the male of the new species exhibits an apophysis on both the coxa and trochanter of leg IV. This feature is unprecedented in the Assamiidae and further accentuates its gonyleptoid appearance. Additionally, a discussion on the Assamiidae of Southeast Asian is included.