The Onychoi are the second of the Great families in the sea. Members of this family make up the majority of Benthist caravans, but this doesn't mean that they don't follow other paths as well. Many of the most competent combatants are from the onychoi. The family members are all linked to decapods.
The kinden that have been identified so far are
There might be more members of the family. The two that immediately spring to mind would be Hermit Crabs or Fiddler Crabs.