The millipede family Paradoxosomatidae on Borneo, with contributions to the faunas of some other islands of the Sunda area (Diplopoda, Polydesmida)

Abstract

The millipede family Paradoxosomatidae on Borneo, with contributions to the faunas of some other islands of the Sunda area (Diplopoda, Polydesmida). - Several fresh collections of paradoxosomatid millipedes from the Indo-Australian archipelago, mainly Borneo, comprise 14 species and two genera new to science: Euphyodesmus reductus sp. n., E. perarmatus sp. n., E. lobatus sp. n., E. lateridens sp. n., Borneochiropus spinitergus sp. n. (both genera allocated within the chiefly Australian tribe Antichiropodini), Orangutana setosa gen. n., sp. n. (Orthomorphini), Arthrogonopus proletarius sp. n., Opisthodolichopus bifidus sp. n., Margaritosoma borneorum sp. n., Dajakina longipes sp. n., Kalimantanina crucifera sp. n., K. bruneica sp. n., all from Borneo, as well as Gigantomorpha mutilata sp. n., from Bali, and Margaritosoma singaporense sp. n., from Singapore. Notes on the variation range of Gigantomorpha immanis Jeekel, 1963, are given. Tectoporus filarius (Attems, 1932), has been rediscovered on Java, Opistodolichopus scandens Hoffman, 1973, in Singapore, and Tectoporus pygmaeus (Pocock, 1894), hitherto reported solely from Java, has been recorded in Bali for the first time. Keys to the tribes and genera of Paradoxosomatidae encountered on Borneo as well as to species of the genera Arthrogonopus Jeekel, 1963, Dajakina Jeekel, 1963, Euphyodesmus Attems, 1931, Gigantomorpha Jeekel, 1963, Margaritosoma Jeekel, 1979, Kalimantanina Jeekel, 1963, and Opisthodolichopus Verhoeff, 1941, have been compiled. A review of the Bornean paradoxosomatid fauna is presented coupled with brief zoogeographical comments.