species, males and females have sexually dimorphic chelicerae.

Types

Chelicerae can be divided into three kinds: jackknife chelicerae, scissor chelicerae, and three-segmented chelate (pincer-like) chelicerae. The earliest known chelicerae-bearing arthropod, the Cambrian Megachelicerax, has three-segmented chelicerae, suggesting that this type is probably ancestral among chelicerates.

Jackknife chelicerae

1.Previous
3.Next