Tonkinosoma flexipes Jeekel, 1953 in nature. A a ♂ B a mating pair.

 
 
  Part of: Liu W, Golovatch S (2018) Occurrence of the millipede genus Tonkinosoma Jeekel, 1953 in China, with the description of the first presumed troglobitic species of this genus (Diplopoda, Polydesmida, Paradoxosomatidae). ZooKeys 742: 23-34. https://doi.org/10.3897/zookeys.742.23471