Pedipalp tibia dorsally with two large spines followed distally by a spine the length of wich is reduced during post-embryonic growth,
no articulation between pedipalp disitarsus and its terminal claw.................................................................................Charon
Pedipalp tibia with three large spines of almost equal length dorsally, articulation between pedipalp disitarsus and its distal claw...............................................Stygophrynus
