Figure 25 from: Golovatch S, Geoffroy J, Stoev P, Vanden Spiegel D (2013) Review of the millipede family Opisotretidae (Diplopoda, Polydesmida), with descriptions of new species. ZooKeys 302: 13-77. https://doi.org/10.3897/zookeys.302.5357 - Golovatch, Sergei (2013)