Some 3.5e/PF1e creatures with a genuine telepathic hive mind?

[Gavinfoxx]

Hi, I was wondering if anyone had any lists of creatures with telepathic hive minds in 3.5e and Pathfinder. I'm wondering how such things were statted out, the various different interpretations of the concept!

[Tzardok]

Formians have a hivemind. Some swarms of magical creatures, like hellwasps, have a hivemind. Cranium rats (in Fiend Folio) get smarter and more powerful the more of them are together. Merregon from Fiendish Codex 2 also have a lesser hivemind.

[Eldan]

There's also a hive mind template in the Book of Vile Darkness, IIRC.

[Doctor Despair]

Verminfriends get to make hive minds with their cap stone ability