Shapes of branching bristles forming a tuft distally to the pharyngeal plate of the hypopharynx of Lithobiidae. ALithobius (Lithobius) forficatus; ramified branching bristles with a roundish shaft and hypopharyngeal spines laterally to pharyngeal plate (top is dorsal) BLithobius (Lithobius) calcaratus; close-up of ‘fan-shaped’ and flattened branching bristles (top is medial) CEupolybothrus (Eupolybothrus) grossipes; ramified and more flattened branching bristles (top is dorsal) DLithobius (Lithobius) latro; ramified and flat branching bristles (top is medial). hsp – hypopharyngeal spine field.

  Part of: 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.