Figure 15 from: Ganske A-S, Edgecombe GD, Akkari N (2018) The peristomatic structures as a source of systematic characters in the genus Lithobius Leach, 1814 (Myriapoda, Chilopoda). In: Stoev P, Edgecombe GD (Eds) Proceedings of the 17th International Congress of Myriapodology, Krabi, Thailand. ZooKeys 741: 49-75. https://doi.org/10.3897/zookeys.741.21706

Figure 15 Examples of spines and bristles flanking the median crest margins of hypopharynx of Lithobius. A–C flattened spines with a transition to branching bristles on the inner rows A Lithobius (Lithobius) pelidnus B Lithobius (Monotarsobius) franciscorum C Lithobius (Lithobius) muticus; Inset: detail of structured surface of flattened spines D–E continuously branching bristles flanking the median crest D Lithobius (Sigibius) microps; stout and short branching bristles E Lithobius (Lithobius) piceus; slender and long branching bristles F Lithobius (Lithobius) forficatus; flattened spines flanking median crest margin. A–B, D–E top is medial; C top is ventral; F top is dorsal.