Orthomorpha rotundicollis (Attems, 1937), subrotundicollis var. nov., ♂, left gonopod A, B lateral and mesal views, respectively C–H distal part, caudal, mesal, suboral, oral, caudal and sublateral views, respectively.

  Part of: Likhitrakarn N, Golovatch SI, Semenyuk I, Efeykin BD, Panha S (2019) Review of the millipede genus Orthomorpha Bollman, 1893 (Diplopoda, Polydesmida, Paradoxosomatidae) in Vietnam, with several new records and descriptions of two new species. ZooKeys 898: 121-158. https://doi.org/10.3897/zookeys.898.39265