from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of chelicerate.
Sorry, no etymologies found.
The four pairs of walking legs of chelicerates lack extensor muscles, but possess flexor muscles.
Also, they are chelicerates rather than true crabs so you really need to follow a different family tree and you might find a spider or scorpion somewhere that you could follow the mitochindria back to something similar.