Commission for beef-supreme
Young Hive Queens have their own name: Crown Crabs. Crown Crabs make their symbionts huge and powerful; like Queens, aside from the eggs.
Crab Symbionts soon realize they have a second voice in their heads: Excitable and protective of the hive
Link
Zetozin
This one looks to be a bit different from the other crown crabs, the host's own eyes are still visible.