ahh,rätt av dig legolas... hittade detta på siten http://www.livingunderworld.org/caudata/database/salamandridae/cynops/
. In general, males have considerably shorter tails than females, usually around 90%-95% the length of the body from snout to vent, whereas females' tails are typically the same length, or slightly longer than the body from snout to vent. Males are also smaller and less robust than females. During the breeding season, males will develop more laterally compressed tails, swollen cloaca, as well as more active and aggressive habits.